SINK WITH TRI-MOUNTABLE SINK RIM

Technical Field This invention relates to sinks, and more particularly to sinks with rims that can be mounted by under mount, drop in and flush mount methods.

Background Art

Sinks are ubiquitous fixtures in both commercial and residential kitchens and bathrooms. Modern sinks add both functionality and esthetic appeal with designer sinks being manufactured from many materials and in many artistic designs. In the current marketplace, stainless steel sinks are particularly desirable. Most applications utilize fairly standard sized sink fixtures and cabinets to accommodate the limitations of existing spaces and to reduce the cost of pure custom designed furniture and plumbing work.

In recent years, countertops and sinks have developed into an important architectural feature of the kitchen and bathroom. Materials used for countertops have expanded, as well as the artistic fashion in which sinks and countertops are engaged with one another. The variety and flexibility of component parts is increasingly demanded by designers and users.

Residential kitchen and bathroom sinks are often installed in cabinets. Three ways of mounting a residential kitchen sink are known in the industry and are described with reference to the relationship between the sink rim and the cabinet countertop: drop in, under mount and flush mount. As will be explained below, Applicant believes that prior art stainless steel sinks may only be mounted by drop in or under mount methods.

Applicant believes that true flush mount sinks are only available as custom designed pieces and not readily available as "off the shelf consumable products. This is particularly true with respect to stainless steel sinks. Prior art sinks have a rim or flange that is flat, thin and narrow with rounded edges. These physical features do not allow for true flush mounting.

Drop in sinks are self-rimming sink units where the sink is set through a pre-cut hole in the countertop. The flange or Hp around the sink provides a

substantial portion of the support. The sink is secondarily held in place with clips that install from below. Under mount sinks are mounted from beneath the counter with no flange or lip showing. The sink is held in place with adhesive as the primary securing means. The adhesive bonds the top surface of the flange to the bottom surface of the countertop. Screws and clips that install from below the countertop add a secondary securing means. Flush mount sinks are designed to mount evenly with the counter top and often comprise a narrower support flange than the self-rimming sink designs. Screws and clips may be used to help secure the sink in place. Drop in sink designs are easiest to install, but have at least one distinct and well-known disadvantage. At the juncture between the sink flange and the countertop, a silicone or other sealing compound is used to prevent infiltration of water and other liquids below the countertop through the cutout. This sealing compound tends to trap debris and is difficult to clean, creating a sanitary hazard and unsightly appearance. For this reason, in addition to esthetic preferences, under mount and flush mount designs are often preferred.

Prior art sinks are generally mountable in only one of the three methods (drop in, under mount or flush mount). Some "hybrid" prior art sinks may be mounted via two of the three methods, often requiring additional kits to adapt to a second mount style. Applicant believes there are no prior art sinks adaptable to mounting via drop in, under mount and flush mount. Attempts to adapt prior art sinks to multiple mounting methods have proven unsatisfactory. Commonly encountered problems include improper seating of the flange in the pre-cut countertop, gaps between the flange and the countertop and insufficient flange support for the weight of the basin.

In particular, materials and conventional sink manufacturing methods have inherent limitations on the suitability of many sink designs for flush mounting. For example, stainless steel sinks are traditionally stamped from sheet metal or punched from a mould, resulting in rounded or beveled edges. This rounded edge feature creates undesirable gaps between the edges of the sink and the countertop when flush mounted. As such, Applicant believes that stainless steel sinks are only available for drop in or under mounting. With these inherent limitations of the prior art, it is desirable to provide a sink unit, especially one

manufactured from stainless steel, with a novel rim that is adapted to be mounted in all three manners.

Manufacturers would benefit from the production of a single tri-mountable design rather than two or three mount-specific designs. Distributors would benefit from a reduced inventory load to meet the needs of its customers, as well as the hassle, delays and financial losses for incorrect prediction of the demand for various mount styles of a particular sink design. Designers and installers would benefit from the ability to make field changes in the mount configuration without having to worry about the need for replacement sinks units with the correct mount configuration. Homeowners would benefit from the ability to remodel a kitchen or bathroom with new countertops, while re-using the sink unit. Dramatically different looks could be achieved with same component part, saving money and making remodeling projects more affordable and practical to implement.

It is an object of this invention to provide a sink rim and sink assembly which are closely matched to the requirements of household use to provide the functions of a sink, additionally, being versatile and readily adaptable to different mounting methods, without change in manufacturing technology, or manufacturing tools; and which is simple to make and of light weight, so that it can be easily manufactured and installed, for example, in a standard sink cabinet. It is an object of this invention to provide a novel sink rim and sink assembly that are readily adaptable to mounting by conventional drop in, under mount and flush mount methods.

It is yet another object of this invention to provide a relatively simple sink assembly and novel sink rim that are economical for mass production from the viewpoint of the manufacturer and consumer, thereby making it economically available to the buying public.

Disclosure of Invention

In accordance with this invention, there is provided a sink mountable in a countertop according to a selected one of a plurality of mounting styles, comprising a basin having a mouth wherein the basin comprises a first basin wall, a second basin wall and a base member; a mounting flange fixed to and extending outward from the basin mouth, the mounting flange dimensioned to

support the sink when mounted and comprising: a top surface dimensioned to cooperate for under mounting style with a bottom surface of the countertop and to lie for flush mounting style in the same plane as the top surface of the countertop; and a bottom surface dimensioned to cooperate for drop in mounting style with the top surface of the countertop and to cooperate for flush mounting style with an upper surface of a sunken mounting ledge in the countertop.

In accordance with this inventor is also provided a sink mountable in a countertop according to a selected one of a plurality of mounting styles, comprising a basin having a mouth; a mounting flange fixed to and extending outward from the basin mouth, the mounting flange dimensioned to support the sink when mounted and comprising, a top surface dimensioned to cooperate for under mounting style with a bottom surface of the countertop and to lie for flush mounting style in the same plane as the top surface of the countertop; and wherein a side surface dimensioned to cooperate for flush mounting style with a side surface of a sunken mounting ledge in the countertop; the top surface of the mounting flange and the side surface of the mounting flange form a substantially square edge, and wherein the bottom surface of the mounting flange and the side surface of the mounting flange form a substantially square edge.

In accordance with this inventor is also provided a sink mountable in a countertop according to a selected one of a plurality of mounting styles, comprising a basin having a mouth and at least one base member wherein the basin further comprises an outflow channel disposed about the at least one base member; a catch pan having a drainage aperture wherein the catch pan is disposed below the at least one base member and wherein the drainage aperture is aligned with the outflow channel; a mounting flange fixed to and extending outward from the basin mouth, the mounting flange dimensioned to support the sink when mounted and comprising, a top surface dimensioned to cooperate for under mounting style with a bottom surface of the countertop and to lie for flush mounting style in the same plane as the top surface of the countertop; and a bottom surface dimensioned to cooperate for drop in mounting style with the top surface of the countertop and to cooperate for flush mounting style with an upper surface of a sunken mounting ledge in the countertop.

Applicant's novel sink rim provides a true flush mount sink assembly that can be manufactured on a mass-scale and sold "off the shelf to contractors and home owners.

Applicant's novel sink rim provides a stainless steel sink assembly that can be flush mounted in a countertop.

Applicant's novel sink rim provides a sink assembly that can be interchangeably mounted in a countertop by any one of three ways: drop in, under mount and flush mount.

Whereas there may be many embodiments of the present invention, each embodiment may meet one or more of the foregoing recited objects in any combination. It is not intended that each embodiment will necessarily meet each objective.

Thus, having broadly outlined the more important features of the present invention in order that the detailed description thereof may be better understood, and that the present contribution to the art may be better appreciated, there are, of course, additional features of the present invention that will be described herein and will form a part of the subject matter of the claims appended to this specification.

In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of the components set forth in the following description or illustrated in the drawings. The present invention is capable of other embodiments and of being practiced and carried out in various ways. Also it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

Brief Description of Drawings

The invention will be described by reference to the specification and the drawings, in which like numerals refer to like elements, and wherein: Figure 1 is a perspective view of one embodiment of a tri-mountable sink assembly mounted by drop in method;

Figure 2 is a perspective view of one embodiment of a tri-mountable sink assembly mounted by flush mount method;

Figure 3 is a perspective view of one embodiment of a tri-mountable sink assembly mounted by under mount method;

Figure 4 is a perspective view of one embodiment of an unmounted tri- mountable sink assembly; Figure 5 is a plan view of one embodiment of a tri-mountable sink assembly;

Figure 6 is a perspective view of one embodiment of a tri-mountable sink assembly mounted by flush mount method;

Figure 7 is a perspective view of the embodiment depicted in Figure 6 prior to mounting;

Figure 8 is a sectional view taken along A-A of Figure 5;

Figure 8A, 8B and 8C are detailed views of 162 of Figure 8 depicting three embodiments of the peripherally extending flange;

Figure 9 is an orthogonal front view of an unmounted tri-mountable sink assembly;

Figure 10 is an orthogonal side view of an unmounted tri-mountable sink assembly;

Figure 11 is a perspective view of one embodiment of a single basin tri- mountable sink assembly; Figure 12 is a plan view of the embodiment of a tri-mountable sink assembly depicted in Figure 11 ;

Figure 13 is a sectional view taken along B-B of Figure 12;

Figure 14 is an orthogonal front view of the embodiment of a tri-mountable sink assembly depicted in Figure 11; Figure 15 is an orthogonal side view of the embodiment of a tri-mountable sink assembly depicted in Figure 11;

Figure 16 is a perspective view of one embodiment of a tri-mountable sink assembly mounted by flush mount method;

Figure 17 is a perspective front view of the embodiment of a tri-mountable sink assembly depicted in Figure 16;

Figure 18 is a plan view of the embodiment of a tri-mountable sink assembly depicted in Figure 16;

Figure 19 is a perspective view of one embodiment of a tri-mountable sink assembly ;

Figure 20 is a plan view of one embodiment of a tri-mountable sink assembly; Figure 21 is a sectional view taken along C-C of Figure 20;

Figure 22 is a perspective view of one embodiment of a tri-mountable sink assembly ;

Figure 23 is a plan view of the embodiment depicted in Figure 22;

Figure 24 is a sectional view taken along E-E of Figure 23; Figure 25 is a perspective view of one embodiment of a tri-mountable sink assembly ;

Figure 26 is a plan view of the embodiment depicted in Figure 25;

Figure 27 is a sectional view of the embodiment of tri-mountable sink assembly along line F-F of Figure 26; Figure 28A is a perspective front view of one embodiment of tri-mountable sink assembly;

Figure 28B is a perspective rear view of the embodiment of tri-mountable sink assembly depicted in Figure 28A;

Figure 28C is a cutout view of the embodiment of tri-mountable sink assembly depicted in Figures 28A and 28B;

Figure 29 is a plan view of the embodiment of tri-mountable sink assembly depicted in Figures 28A, 28B and 28C;

Figure 30 is a sectional view of the embodiment of tri-mountable sink assembly along line G-G of Figure 29; Figure 31 is a perspective front view of one embodiment of tri-mountable sink assembly;

Figure 32A is a plan view of the embodiment of tri-mountable sink assembly depicted in Figure 31;

Figure 32B is a sectional view of the embodiment of tri-mountable sink assembly along line H-H of Figure 32A;

Figure 32C is a sectional view of the embodiment of tri-mountable sink assembly along line l-l of Figure 32A; and

Figure 32D is a perspective view of the cross section depicted in Figure 32C.

The drawings are not to scale, in fact, some aspects have been emphasized for a better illustration and understanding of the written description.

Best Mode for Carrying Out the Invention

The novel sink assembly and sink rim of this invention are adaptable to be mounted via three conventional mounting methods: drop in, under mount and flush mount. The features of the sink rim and sink assembly described herein render them more versatile than sink assemblies and sink rims of the prior art.

Figure 1 depicts a novel tri-mountable sink assembly 100 mounted in a countertop 112 via a conventional drop in method. Figure 2 depicts tri-mountable sink assembly 100 mounted in a countertop 112 via a conventional flush mount method. Figure 3 depicts tri-mountable sink assembly 100 mounted in a countertop 112 via a conventional under mount method.

Referring to Figure 1, tri-mountable sink assembly 100 comprises an outwardly extending peripheral mounting flange 102, a first basin 106, and a second basin 108. The outwardly extending peripheral mounting flange extends outward from the basin mouth. In the embodiment depicted, faucet controls 110 are disposed in countertop 112 in proximity of rear longitudinal side 104. The full outwardly extending peripheral mounting flange 102 is disposed over the countertop 112 such that the depth 114 of the outwardly extending peripheral mounting flange 102 is visible when mounted for use. In this mounting style, it is the underside (not visible in this view) of the outwardly extending peripheral mounting flange 102 that is in contacting engagement with countertop 112.

As used in this specification, basin shall mean a basin-like, water impervious container that facilitates the collection of liquids, solids, and the like. It ^' is to be understood and within the scope of this invention that a basin of this invention takes many shapes and sizes in various embodiments including three- dimensional uniform or non-uniform shapes such as a square, rectangular, round, oval, octagonal, triangular, organic or any open volumetric shape. The basin mouth of this invention may be any uniform or non-uniform circumference such as a square, rectangular, round, oval, octagonal, triangular, or any two dimensional

closed shape. By way of illustration, but not limitation, a basin of this invention may be a single basin, a double basin, a triple basin and the like.

Referring to Figure 2, where tri-mountable sink assembly 100 is installed via a flush mount method, the depth 114 visible in Figure 1 (the vertical exterior edge) is disposed in the countertop 112 and is not visible when mounted for use. The exposed surface of the outwardly extending peripheral mounting flange 102 and the countertop are in the same plane, thus creating the "flush" horizontal transition between the two and a visually harmonious transition. In this mounting style, it is both the underside (not visible in this view) and the vertical exterior edge of the outwardly extending peripheral mounting flange 102 that are in contacting engagement with countertop 112. In one embodiment, the countertop 112 is prepared for sink mounting with a surface cut-out and a sunken mounting ledge that is adapted to receive the outwardly extending peripheral mounting flange. In this embodiment, the underside of the outwardly extending peripheral mounting flange is in contacting engagement with the upper surface of the mounting ledge.

Referring to Figure 3, where tri-mountable sink assembly 100 is installed via an under mount method, the outwardly extending peripheral mounting flange 102 (not visible in this view) is disposed below the countertop 112 and is not visible when mounted fo.r use. The exposed vertical surface of the countertop cutout 116 and the basin walls 118, 122, 124, 126, 128, 130 are in the same plane, thus creating a "flush" downward and visually harmonious transition between the two.

Figure 4 depicts tri-mountable sink assembly 100 in an uninstalled state. In the aspect of the embodiment depicted, tri-mountable sink assembly 100 comprises an outwardly extending peripheral mounting flange 102, a first basin 106, and a second basin 108. First basin 106 and second basin 108 are divided transversely by dividing wall 132. In a preferred embodiment, said first basin 106, second basin 108, and dividing wall 132 are integrally formed as a single component. In some embodiments, each of said first basin 106, second basin 108, and dividing wall 132 are individual components permanently and fixedly assembled into a unitary structure with said outwardly extending peripheral

mounting flange 102. Outwardly extending peripheral mounting flange 102 is integrally bound to first basin 106 and second basin 108 in a unitary sink unit.

In one embodiment, outwardjy extending peripheral mounting flange 102 and basins 106, 108 are metallurgically integral at their contiguous points of contact, thereby creating said unitary sink unit. In one aspect of this embodiment, welding is used to fixedly engage said contiguous points of contact.

Referring again to Figure 4, first basin 106 comprises four downwardly depending basin walls 118, 120, 122, 124 and first base member 138. First drainage aperture 134 is disposed in first base member 138. First base member 138 is integrally bound to the downwardly depending basin walls 118, 120, 122, 124.

Referring again to Figure 4, second basin 108 comprises four downwardly depending basin walls 126, 128, 130, 133 and second base member 140. Second drainage aperture 136 is disposed in second base member 140. Second base member 140 is integrally bound to the downwardly depending basin walls 126, 128, 130, 133.

The embodiment depicted in Figure 4 is for illustrative purposes only. It is to be understood that first basin 106 and second basin 108 may be manufactured in many sizes. For example, in one embodiment, first basin 106 and second basin 108 are the same size. In one embodiment, first basin 106 is larger than second basin 108, and in another embodiment, first basin 106 is smaller than second basin 108. As depicted in Figure 11, a single basin sink is incorporated rather than a dual basin sink as depicted in Figure 4.

In one aspect of the embodiment depicted in Figure 4, said downwardly depending basin walls 118, 120, 122, 124, 126, 128, 130, 133 and base members 138, 140 comprise a metallic material conventionally used in the manufacture of sinks. By way of example, but not limitation, said downwardly depending basin walls comprise copper, bronze, brass or stainless steel.

In a preferred embodiment, said downwardly depending basin walls 118, 120, 122, 124, 126, 128, 130, 133 and base members 138, 140 comprise type 304 stainless steel having a thickness of from about 12 to about 20 gauge (from about 0.0375 to about 0.1094 inches) as measured on the United States standard scale for plate (iron and steel). In one aspect of such embodiment, said

downwardly depending basin walls 118, 120, 122, 124, 126, 128, 130, 133 comprise type 304 stainless steel having a thickness of from about 16 to about 18 gauge (from about 0.05 to about 0.0625 inches) as measured on the United States standard scale for plate (iron and steel). In one aspect of the embodiment depicted in Figure 4, said outwardly extending peripheral mounting flange 102 comprises a metallic material conventionally used in the manufacture of sinks. By way of example, but not limitation, said downwardly depending basin walls comprise copper, bronze, brass or stainless steel. In a preferred embodiment, said outwardly extending peripheral mounting flange 102 comprises type 304 stainless steel having a thickness of from about 6 to about 6/0 gauge (from about 0.2031 to about 0.4687 inches) as measured on the United States standard scale for plate (iron and steel). In one aspect of such embodiment, said outwardly extending peripheral mounting flange 102 comprises type 304 stainless steel having a thickness of from about 0.23 inches to about 0.26 inches (substantially about 3 gauge) as measured on the United States standard scale for plate (iron and steel). In one aspect, said outwardly extending peripheral mounting flange 102 comprises type 304 stainless steel having a thickness of from about 0.23 inches to about 0.6 inches. In one preferred embodiment, said outwardly extending peripheral mounting flange 102 comprises type 304 stainless steel having a thickness of about one-half inches.

Applicant believes that this novel thickness of the outwardly extending peripheral mounting flange provides several functional advantages. The thickness permits the sink rim to be flush mounted. Prior art stainless steel sinks with thinner and narrower outwardly extending peripheral mounting flanges cannot adequately support the weight of the sink basin in a flush mounted configuration. The thicker outwardly extending peripheral mounting flange overcomes this limitation of the prior art.

Additionally, whereas most stainless steel sinks are punched during the manufacturing process to form the basin and flange, the entire sink assembly comprises a single steel type and thickness. The rim is generally quite narrow. Additionally, the exterior edges have a beveled, rolled or rounded configuration. In contrast, Applicant's novel sink assembly comprises six separate pieces of steel

welded together to form a basin and the outwardly extending peripheral mounting flange. By incorporating a thicker and wider outwardly extending peripheral mounting flange, a tri-mountable sink rim is created. Having a flat surface on both the upper and lower surfaces of the outwardly extending peripheral mounting flange, the sink rim and/or sink assembly may be mounted as a drop in or an under mount sink assembly.

Additionally, Applicant's novel sink rim may be flush mounted. By welding the separate pieces to form the sink assembly, substantially square exterior edges (of from about 85 to about 95 degrees, preferably from about 89 to about 91 degrees) are formed. These square exterior edges, as opposed to rolled or beveled edges, create a truly flush mountable sink rim, overcoming the limitations of prior art sinks. The additional thickness and width of the outwardly extending peripheral mounting flange provide adequate support for the sink assembly when mounted. The square exterior edges of the tri-mountable sink rim eliminate the gaps created by the beveled/rolled edges of the prior art sink rims.

The unique structural design of Applicant's novel sink rim incorporates three flat surfaces and a square exterior edge of the outwardly extending peripheral mounting flange. The flat upper surface of the outwardly extending peripheral mounting flange facilitates under mounting. The flat lower surface, in combination with the width of the outwardly extending peripheral mounting flange, facilitate drop in mounting. The remaining flat vertical surface, in combination with the square exterior edge, novel thickness, and width of the outwardly extending peripheral mounting flange, facilitate flush mounting.

In one preferred embodiment, said tri-mountable sink assembly 100 comprises a chromium-nickel stainless steel selected from the AISI/SAE 300 series of stainless steels. In another embodiment, said tri-mountable sink assembly 100 comprises a chromium-nickel-manganese alloy stainless steel selected from the AISI/SAE 200 series of stainless steels. Other standardized steels that are used in the manufacture of tri-mountable sink assembly 100 include, but are not limited to, ASTM/AISl steel types 304L, 304LN, 304, 304H and the like. Other standardized steels that are used in the manufacture of tri- mountable sink assembly 100 include, but are not limited to, EN-standard steel types 1.4307, 1.4306, 1.4311, 1.4301, 1.4948, and the like.

In one embodiment, said tri-mountable sink assembly 100 comprises an alloy containing from about 11 to about 30 weight per cent of iron and from about 10.5 to about 30 weight per cent of chromium.

In one embodiment, said tri-mountable sink assembly 100 comprises an alloy containing from about 11 to about 30 weight per cent of iron; from about 10.5 to about 30 weight per cent of chromium; and other alloying elements selected from the group consisting of nickel, molybdenum, copper, titanium, aluminum, silicon, niobium, nitrogen, sulphur, selenium and combinations thereof.

In one embodiment, said tri-mountable sink assembly 100 comprises an austenitic stainless steel alloy containing from about 11 to about 30 weight per cent of iron, from about 16 to about 26 weight per cent of chromium, and from about 8 to about 22 weight per cent of nickel. In a preferred embodiment, said tri- mountable sink assembly 100 comprises an austenitic stainless steel alloy containing from about 11 to about 30 weight per cent of iron, about 18 weight per cent of chromium, and about 10 weight per cent of nickel.

In one preferred embodiment of tri-mountable sink assembly 100, component parts of the sink assembly (e.g. basin walls 118, 120, 122, 124, 126, 128, 130, 133; base members 138, 140; and outwardly extending peripheral mounting flange 102) are assembled by a welding process. By way of illustration, but not limitation, suitable welding methods known in the art include shield metal arc welding, gas tungsten arc welding and gas metal arc welding. Filler metal alloys used in the welding process may include, but are not limited to, conventional filler metal alloys Cr-Ni-Austenitic (AISI No. 309, 310, 316, 317, 347) and the like. Figures 8A and 8B depict two configurations for assembling and welding some of the component parts of the sink, e.g. basin walls 118, 120,- 122, 124, 126, 128, 130, 133 and outwardly extending peripheral mounting flange 102.

Figure 5 depicts a plan (top) view of one embodiment of the tri-mountable sink assembly 100. In this view, the features of base members 138, 140 (see Figure 4) are more clearly depicted. As visible in Figure 5, first base member 138 (of Figure 4) comprises proximal base portion 146, distal base portion 142, third axial base portion 144, fourth axial base portion 148 and first drainage aperture 134. As visible in Figure 5, second base member 140 (of Figure 4) comprises

anterior base portion 154, posterior base portion 150, first axial base portion 156, second axial base portion 152 and second drainage aperture 136.

Referring to Figure 5, first drainage aperture 134 and second drainage aperture 136 have a diameter 158, 160 of from about three inches to about four inches, preferably about three and five-eighths inches. Preferably, a conventional drain assembly, garbage disposal or the like is mounted in drainage apertures 134, 136 when in use.

Referring to Figure 5, proximal base portion 146, distal base portion 142, third axial base portion 144, and fourth axial base portion 148, anterior base portion 154, posterior base portion 150, first axial base portion 156, second axial base portion 152 are gently pitched downwardly from the basin walls toward their respective drainage apertures 134, 136 to facilitate the drainage (exiting) of water from the basins 106, 108 via the drainage apertures 134, 136. In a preferred embodiment, the drainage apertures 134, 136 are disposed at the lowest point of their respective base members 138, 140. In one aspect of this embodiment, the downward pitch is from about one to about thirty degrees.

Referring to Figure 5, outwardly extending peripheral mounting flange 102 comprises four members 102A, 102B, 102C, and 102D. In the embodiment depicted, outwardly extending peripheral mounting flange extends from one-half to six inches, preferably from about one-half to about three inches, outwardly from the basin walls 118, 120, 122, 124, 126, 128, 130, 133 uniformly around the entire periphery in a symmetrical fashion. Thus, a rectangular shaped frame is formed around the basin with a basin mouth opening with a distance 153 between the interior edges of sections 102A and 102C of outwardly extending peripheral mounting flange 102.

Referring to Figure 5, in one preferred embodiment, drainage apertures 134, 136 are disposed about base members 138, 140 such that the midpoint of the drainage aperture 134, 136 is disposed at a distance 151 of from about one inch to about six inches from the basin walls 118, 126. Figure 6 depicts a perspective view of one embodiment of tri-mountable sink assembly 200. In this view, tri-mountable sink assembly 200 is top-mounted in countertop 112. The features of tri-mountable sink assembly 200 are substantially the same as depicted and described herein with reference to

embodiment 100 with the exception that the outwardly extending peripheral mounting flange is not uniform. In the embodiment 200 depicted, outwardly extending peripheral mounting flange comprises proximal flange portion 206, distal flange portion 202, first transverse flange portion 204 and second transverse flange portion 208.

In one aspect of the embodiment depicted in Figure 6, proximal flange portion 206 has a width 218 of from about one-half to about six inches, preferably from about one-half to about three inches. In the aspect of this embodiment depicted, proximal flange portion 206 extends from the basin walls to the front edge 210 of countertop 112.

In one aspect of the embodiment depicted in Figure 6, distal flange portion 202 has a width 216 of from about one-half to about six inches, preferably from about one-half to about three inches. In the aspect of this embodiment depicted, distal flange portion 202 further comprises a plurality of apertures 212, 214 to receive faucet controls 110. It is to be appreciated that only a single such aperture, three apertures or some other combination may be used as required for the desired faucet control, sprayer, or the like. Apertures 212, 214 are preferably disposed along distal flange 202 such that faucet 224 is in proper alignment 226 with the sink basins 106, 108 and/or drainage apertures 134, 136. In a preferred aspect of this embodiment, faucet 224 is in direct alignment with drainage apertures 134, 136 to minimize the noise created by flowing water contacting the base members 138, 140 (see Figure 5.)

Figure 7 depicts one embodiment of tri-mountable sink assembly 200 prior to mounting. Apertures 212, 214 may be more clearly observed in this view. Optionally and additionally, a plurality of noise reducing devices 222, 230 are affixed along the exterior surfaces of basin walls 122, 130 to soften the noise created when water, dishes and the like come into contact with the basin walls and/or base members. By way of illustration, but not limitation, noise reducing devices comprise rubber. By way of further illustration, a spray-on coating on the entire underside of the sink basin may be used to reduce such noise.

In one aspect of the embodiment depicted in Figure 7, first transverse flange portion 204 and second transverse flange portion 208 have a width 220, 225 of from about one-half to about three inches. In the aspect of this embodiment

depicted, first transverse flange portion 204 and second transverse flange portion 208 have the same width 220, 225. In the aspect of this embodiment depicted, first transverse flange portion 204 and second transverse flange portion 208 have a width 220, 225 that is less than the width 218 of proximal flange portion 206 and/or the width 216 of distal flange portion 202. In the aspect of this embodiment depicted, proximal flange portion 206 and distal flange portion 202 have the same width 218, 216. By way of illustration, but not limitation, first transverse flange portion 204 and second transverse flange portion 208 have a width 220, 225 of about one and one-half inches, distal flange portion 202 has a width 216 of about three inches, and proximal flange portion 206 has a width 218 of about three inches. By way of further illustration, but not limitation, first transverse flange portion 204 and second transverse flange portion 208 have a width 220, 225 of from about one-half to about six inches, distal flange portion 202 has a width 216 of from about one half to about six inches, and proximal flange portion 206 has a width 218 of from about one-half to about six inches.

Figure 8 is a sectional view taken along A-A of Figure 5 and more clearly depicts the dimensions of basins 106 and 108. Basin 106 has a basin mouth opening with a distance 176 of from about four to about forty-eight inches. In one embodiment, basin 106 has a basin mouth opening with a distance 176 of about thirteen inches. Outwardly protruding peripheral mounting flange 102 protrudes a distance 174, 188 of from about one-half inch to about six inches, preferably from about one-half to about three inches. Divider 132 extends a distance 178 of from about one-half to about three inches, preferably from about one to about one and one-half inches. Basin 108 has a basin mouth opening with a distance 180 of from about four to about forty-eight inches. In one embodiment, basin 108 has a basin mouth opening with a distance 180 of about nineteen inches. The depth 168 of basin 108 is from about one inch to about nineteen inches. Downwardly depending basin wall 128 extends a distance 164 of from about one inch to about eighteen inches before it junctures with second axial base portion 152. Second axial base portion 152 extends downwardly toward drain aperture 136 at a slope of from about one to about thirty degrees. In one embodiment, angle 194 is from about one degree to about thirty degrees.

Similarly, the depth 172 of basin 106 is from about one inch to about eighteen inches. Downwardly depending basin wall 124 extends a distance 170 of from about one inch to about eighteen inches before it junctures with fourth axial base portion 144. Fourth axial base portion 144 extends downwardly toward drain aperture 134 at a slope of from about one to about thirty degrees. In one embodiment, angle 196 is from about one degree to about thirty degrees.

Figures 8A and 8B depict close up sectional views of 162 of Figure 8. Figure 8A depicts outwardly extending peripheral mounting flange 102 assembled together with basin 106 such that the top 195 of the basin wall is permanently affixed to the side 198 of and flush with the top 197 of outwardly extending peripheral mounting flange 102. In the embodiment depicted in Figure 8A, a portion of the basin wall forms part of the outwardly extending peripheral mounting flange 102.

Figure 8B depicts outwardly extending peripheral mounting flange 102 assembled together with basin 106 such that the top 195 of the basin wall is permanently affixed to the bottom 199 of and flush with the side 198 of outwardly extending peripheral mounting flange 102. In the embodiment depicted in Figure 8B, the basin wall does not form part of the outwardly extending peripheral mounting flange 102. Referring to Figures 8A and 8B, the thickness 190 of the outwardly extending peripheral mounting flange 102 is greater than the thickness 192 of the basin walls. In one embodiment, the quotient of a thickness 192 of said downwardly depending basin walls divided by a thickness 190 of said outwardly extending peripheral mounting flange is from about 0.08 to about 0.54. In a preferred embodiment, the quotient of a thickness 192 of said downwardly depending basin walls divided by a thickness 190 of said outwardly extending peripheral mounting flange is from about 0.2 to about 0.25.

Figure 8C depicts an alternate embodiment of the outwardly extending peripheral mounting flange 102 in Figure 8B. It is substantially the same with the exception that interior edge 193 comprises a slightly rounded edge at the juncture between the outwardly extending peripheral mounting flange 102 and the downwardly depending basin wall of basin 106. In one aspect of this embodiment, the interior edge 193 radius is from about 1/32 inch to about ¹ /a inch.

This interior edge 193 differs from the exterior edge 191. The exterior edge 191 of the outwardly extending peripheral mounting flange 102 comprises a substantially square edge of from about 85 to about 95 degrees, thus resulting in an asymmetrical edge along the longitudinal sides of the flange portions. This rounded interior edge 193 prevents sharp edges upon which a user may be lacerated while the substantially square edge 191 facilitates the tri-mountable feature of this novel sink rim.

Figure 9 is a front view of tri-mountable sink assembly 100 and Figure 10 is a side view of tri-mountable sink assembly 100. They depict additional views for further clarification and reference.

Figure 11 depicts one embodiment of tri-mountable sink assembly 300 which is substantially the same as depicted and described with respect to embodiment 200 with the exception that it comprises a single basin 324. Noise reducing device 306 is affixed along the exterior surface of basin wall 310 and is substantially the same as that described with reference to noise reducing devices 222, 230 of Figure 7. Optionally and additionally, a plurality of noise reducing devices 306 may be affixed along the exterior surfaces of basin walls 308, 312 and 314. Aperture 302 is adapted to receive faucet controls (not depicted in this view). In the embodiment depicted, aperture 302 is disposed along distal flange portion 316 about its midpoint.

Figure 12 is a plan view of embodiment 300. In one aspect of the embodiment depicted in Figures 11 and 12, first transverse flange portion 318, second transverse flange portion 322, distal flange portion 316, and proximal flange portion 320 have a width 330, 334, 328, 332 of from about one-half to about six inches, preferably from about one-half to about three inches. In the aspect of this embodiment depicted, first transverse flange portion 318 and second transverse flange portion 322 have the same width 330, 334. In the aspect of this embodiment depicted, first transverse flange portion 318 and second transverse flange portion 322 have a width 330, 334 that is less than or equal to the width 332 of proximal flange portion 320 and/or the width 328 of distal flange portion 316. In the aspect of this embodiment depicted, proximal flange portion 320 and distal flange portion 316 have the same width 332, 328. By way of illustration, but not limitation, first transverse flange portion 318 and second

transverse flange portion 322 have a width 330, 334 of about one and one-half inches, distal flange portion 316 has a width 328 of about one and one-half inches, and proximal flange portion 320 has a width 332 of about one and one- half inches. Referring again to Figure 12, anterior base portion 354 is substantially the same as described and depicted with reference to anterior base portion 154 of Figure 5. Posterior base portion 350 is substantially the same as described and depicted with reference to posterior base portion 150 of Figure 5; first axial base portion 356 is substantially the same as described and depicted with reference to first axial base portion 156 of Figure 5; second axial base portion 352 is substantially the same as described and depicted with reference to second axial base portion 152 of Figure 5. Drainage aperture 304 is substantially the same as described and depicted with reference to first drainage aperture 136 of Figure 5, having a diameter 160 of from about three inches to about four inches, preferably about three and five-eighths inches. Preferably, a conventional drain assembly, garbage disposal or the like is mounted in drainage aperture 304 when in use.

Figure 13 is a sectional view of embodiment 300 taken along B-B of Figure 12. In the embodiment depicted, first transverse flange portion 318 and second transverse flange portion 322 have a width 330, 334 of about one and one-half inches. Basin 324 has a basin mouth opening that extends a distance 380 (see Figure 13) between basin walls 308 and 312 of from about four inches to about forty-eight inches. The basin walls 308, 312 depend downwardly from the second transverse flange portion 322 and first transverse flange portion 318 extending a distance 164 of from about one inch to about eighteen inches. The depth 168 of basin 324 at its lowest point at drainage aperture 304 is of from about one inch to about twenty-two inches. Second axial base portion 352 extends downwardly toward drain aperture 304 at a slope of from about one to about thirty degrees. In one embodiment, angle 394 is from about one degree to about thirty degrees. Figures 14 and 15 are additional views of embodiment 300 to show additional aspects not visible in the other views. Figure 14 is front view and Figure 15 is a left side view.

Figure 16 depicts one embodiment of tri-mountable sink assembly 400 as flush mounted in countertop 112. The embodiment depicted is substantially the

same as depicted and described with respect to embodiments 100, 200 and 300 with the exception that it comprises arcuate corners 402, 404, 406, 408 along the outwardly extending peripheral mounting flange 418. As depicted, this aspect of the embodiment is particularly suited to flush mounting in countertops 112 comprised of CORIAN®, granite, simulated marble, cement, wood, slate, stone, and the like. In the aspect of embodiment 400 depicted in Figure 16, the faucet controls 110 are disposed in countertop 112.

Figure 17 depicts tri-mountable sink assembly 400 in its unmounted state. In this view, optional noise reducing devices 414 are visibly affixed along a plurality of the basin walls. Said noise reducing devices 414 are substantially the same as that described with reference to noise reducing devices 222, 230 of Figure 7. Additionally, in the aspect of embodiment 400 depicted in Figure 17, apertures 410 and 412 are adapted to receive faucet controls (not depicted in this view but see 110 of Figure 16). In the embodiment depicted, apertures 410, 412 are disposed along distal flange portion 416 in a manner described with reference to Figures 5 and/or 6.

Figure 18 is a plan view of embodiment 400. Corners 402, 404, 406 and 408 comprise a radius of from about one-eighth to about one-half inch, preferably about one-quarter inch. Figure 19 is a perspective view of one embodiment of tri-mountable sink assembly 500 in its unmounted state. Figure 20 is a plan view of a tri-mountable sink assembly 501 similar to the one in Figure 19 except that the base member is concavely contoured. The embodiment depicted is substantially the same as depicted and described with respect to embodiments 100, 200, 300, and 400 with the exception that base member 504 comprises a continuous solid surface. In one aspect of this embodiment (see Figure 21), base member 504 is concavely contoured such that it is gently pitched downwardly from the base of basin walls 512, 514, 516, and 518 towards drainage aperture 508. In the embodiment depicted in Figure 19, base member 504 is flat, that is, perpendicular with respect to the basin walls and having no downward pitch.

Referring again to Figure 19, base member 504 differs from the base members in embodiments 100, 200, 300, and 400 in that their base members in those embodiments comprise four panels. For example, in embodiment 100, first

base member 138 (of Figure 4) comprises proximal base portion 146, distal base portion 142, third axial base portion 144, and fourth axial base portion 148. In contrast, base member 504 of Figures 19 and 20 comprises a single unitary member. Figure 20 is a plan view of one embodiment of a tri-mountable sink assembly. Figure 21 is a sectional view taken along C-C of Figure 20. In one embodiment 501 depicted in Figures 20 and 21, the downward pitch, e.g. angle 528, is from about one to about thirty degrees from the base of any basin wall to drainage aperture 508. Referring again to Figure 19, drainage aperture 508 is substantially the same as depicted and described with respect to 134 and 136 of embodiment 100 (see Figure 5.) Tri-mountable sink assembly 500 comprises an outwardly extending peripheral mounting flange substantially the same as depicted and described with respect to embodiments 100, 200, 300, and 400. In one embodiment, the peripheral mounting flange has a width of two inches on the longitudinal sides 510A, 510C portions and three inches on the transverse side portion 510B, 510D.

In one aspect of the embodiments 500, 501 depicted in Figures 19 and 20, basin mouth 506 has an opening with a distance 520 between the interior edges of sections 510A and 51 OC is from about seven inches to about twenty inches, preferably from about eleven inches to about fifteen inches. In one preferred embodiment, distance 520 is thirteen inches. In one aspect of this embodiment, basin mouth 506 has a distance 522 between the interior edges of sections 510B and 510D from about eight inches to about thirty inches, preferably from about twelve inches to about eighteen inches. In one aspect of this embodiment, basin 502 has a depth 524 between the basin mouth 506 and the base of basin wall 512, 514, 516, or 518. Depth 524 is from about two inches to about eighteen inches, preferably from about two inches to about six inches. In one preferred embodiment, depth 524 is four inches. Figure 21 depicts an additional view of tri-mountable sink assembly 501 for further clarification and reference. Optionally and additionally, a noise reducing device or a plurality of noise reducing devices, substantially the same as that described with reference to noise reducing devices 222 and 230 of Figure 7, may

be affixed along the exterior surfaces of the basin walls (see 512, 514, 516 and/or 518 in Figure 19). Optionally and additionally, tri-mountable sink assembly 500 may be adapted to receive faucet controls (not depicted in this view) substantially the same as those described with reference to faucet controls 110 of embodiments 100, 200, and 400.

Figure 22 is a perspective view of one embodiment of tri-mountable sink assembly 700 in its unmounted state. Figure 23 is a plan view of embodiment 700 depicted in Figure 22 and Figure 24 is a sectional view of embodiment 700 along E-E of Figure 23. The embodiment 700 depicted in Figures 22, 23 and 24 is substantially the same as depicted and described with respect to embodiments 100, 200, 300, 400, and 500, with the exception that basin 702 comprises two downwardly depending basin walls 712 and 716, and base member 704. Base member 704 extends from the interior edge of first transverse side 710B of the outwardly extending peripheral mounting flange to the interior edge of the second transverse side 710D of the outwardly extending peripheral mounting flange, forming a continuous integrated member. Base member 704 essentially forms a concave surface serving the function of both a wall and base. By way of illustration, but not limitation, the cross-section of the concave surface of base member 704 can be U shaped, parabolic, or circumscribed by an arc of a circle. In a preferred embodiment, the radius of the circle that forms the arc of base member 704 demonstrated in Figure 24 is 18 3/16 inches thus forming a basin with a depth of three inches. In one aspect of this embodiment, basin 702 has a depth 726 between the basin mouth 706 and the drainage aperture 708.

In the embodiment 700 depicted in Figure 23, basin mouth 706 has an opening with a distance 720 between the interior edges of sections 710A and

710C. Distance 720 is from about seven inches to about twenty inches, preferably from about eleven inches to about fifteen inches and more preferably about thirteen inches. In one aspect of this embodiment 700, basin mouth 706 has a distance 722 between the interior edges of sections 710B and 710D. Distance 722 is from about ten inches to about thirty inches, preferably from about eighteen inches to about twenty-two inches and more preferably about twenty inches.

Referring again to Figures 22, 23 and 24, drainage aperture 708 is located at the vertex of base member 704 and is substantially the same as depicted and

described with respect to 134 and 136 of embodiment 100. Tri-mountable sink assembly 700 comprises an outwardly extending peripheral mounting flange 710 substantially the same as depicted and described with respect to embodiments 100, 200, 300, 400, and 500. In a preferred embodiment 700 depicted in Figures 22, 23, and 24, the outwardly extending peripheral mounting flange has a uniform width of one inch on all four sides.

Figure 24 depicts an additional view of tri-mountable sink assembly 700 for further clarification and reference. Optionally and additionally, a noise reducing device or a plurality of noise reducing devices, substantially the same as that described with reference to noise reducing devices 222 and 230 of Figure 7, may be affixed along the exterior surfaces of basin walls 712 and 716 and/or base member 704.

Optionally and additionally, tri-mountable sink assembly 700 may be adapted to receive faucet controls (not depicted in this view) substantially the same as those described with reference to faucet controls 110 of embodiments 100, 200, and 400.

Figure 25 is a perspective view of one embodiment of tri-mountable sink assembly 800 in its unmounted state. Figure 26 is a plan view of embodiment 800 depicted in Figure 25. Figure 27 is a sectional view along ^' F-F of Figure 26. The embodiment depicted is substantially the same as depicted and described with respect to embodiment 700 with the exception that base member 804 extends from the interior edge of distal flange portion 810A to the interior edge of proximal flange portion 810C. The radius of curvature of base member 804 is substantially the same as depicted and described with respect to base member 704 of embodiment 700 depicted in Figures 22, 23 and 24. In a preferred embodiment 800, the radius of curvature of base member 804 is the arc of a circle with a radius of seven and one half inches. The outwardly extending peripheral mounting flange has a uniform width of one inch on all portions 810A, 810B, 810C, 810D. In one aspect of the embodiment depicted in Figure 26, distance 820 is from about seven inches to about twenty inches, preferably from about ten inches to about fourteen inches, and most preferably about twelve inches. Distance 822 is from about twelve inches to about thirty-six inches, preferably from about

twenty-two inches to about twenty-six inches and most preferably about twenty four inches. Depth 826 is from about two inches to about eighteen inches, preferably from about two inches to about six inches. In a preferred embodiment, depth 826 is about three inches. Referring again to Figures 25, 26 and 27, drainage aperture 808 is located at the vertex of base member 804 and is substantially the same as depicted and described with respect to 134 and 136 of embodiment 100. Tri-mountable sink assembly 800 comprises an outwardly extending peripheral mounting flange 810 substantially the same as depicted and described with respect to embodiments 100, 200, 300, 400, 500, and 700.

Optionally and additionally, a noise reducing device or a plurality of noise reducing devices, substantially the same as that described with reference to noise reducing devices 222 and 230 of Figure 7 may be affixed along the exterior surfaces of basin walls 814 and 818 and/or base member 804. Optionally and additionally, tri-mountable sink assembly 800 may be adapted to receive faucet controls (not depicted in this view) substantially the same as those described with reference to faucet controls 110 of embodiments 100, 200, and 400.

Figure 28A is a perspective front view of one embodiment of tri-mountable sink assembly 600 in its unmounted state. Figure 28B is a perspective rear view of the embodiment of tri-mountable sink assembly 600 depicted in Figure 28A. Figure 28C is a cutout view of the embodiment of tri-mountable sink assembly 600 depicted in Figures 28A and 28B. Figure 29 is a plan view of the embodiment of tri-mountable sink assembly 600 depicted in Figures 28A, 28B and 28C. Figure 30 is a sectional view of the embodiment of tri-mountable sink assembly 600 along line G-G of Figure 29. The embodiment 600 depicted is substantially the same in construction depicted and described with respect to embodiments 100, 200, 300, 400, and 500. Tri-mountable sink assembly 600 comprises an outwardly extending peripheral mounting flange substantially the same as depicted and described with respect to embodiments 100, 200, 300, 400, and 500. In one preferred embodiment, traverse mounting flange portions 610B and 610D are 2.5 inches wide and longitudinal mounting flange portions 610A, 610C are one inch wide. In one aspect of the embodiment depicted in Figures 28A, 28B and 28C, the

basin mouth has an opening substantially the same as depicted and described with respect to embodiment 500, preferably with a distance 654 of about 20 inches and a distance 652 of about 13 inches.

The embodiment 600 depicted differs from other embodiments in that the basin 612 comprises three downwardly depending basin walls 640, 616, 618 and base member 604. Base member 604 extends from the outflow channel formed at the base of downwardly depending basin wall 618 to the interior edge of section 610B, forming base angle 650 (see Figure 30). Base member 604 is angled substantially so that it renders a fourth basin wall unnecessary. In one aspect of embodiment 600, base angle 650 is from about one to about sixty degrees, preferably from about twenty to about forty-five degrees.

The embodiment 600 depicted also differs from other embodiments in that the drainage aperture 622 is not disposed along base member 604. In this embodiment, the water flows along base member 604 in the direction from the interior edge of section 610B toward the base of downwardly depending basin wall 618 and through an outflow channel 620 where it collects on a catch pan 627 before flowing through drainage aperture 622. Thus, the water travels through outflow channel 620 where it collects in a cavity 624 defined by the catch pan 627 and, exterior sink wall 626. The flow of water is further facilitated by a downward pitch of from about 0.25 to about 1.0 inch of portions 628 of the catch pan 627 which are perpendicular with exterior sink wall 626. In this embodiment, downwardly depending basin wall 618 forms a basin wall, but does not form the exterior sink wall 626. Exterior sink wall 626 is disposed substantially parallel to downwardly depending basin wall 618 at a distance of from about 1 to about 5 inches therefrom, preferably about 1 3/8 inches.

In one embodiment (not depicted), cavity 624 does not protrude downwardly from the basin, rather, is relatively flush with the bottom 604 of the basin and drainage aperture 622 connects directly to a threaded pipe.

In the embodiment depicted, drainage aperture 622 has a diameter 634 of 1 3/8 inches. The maximum basin depth 630 is from about 2 to about 8 inches, preferably from about 3 to about 6 inches, and the distance 632 is from about 2 to about 12 inches.

Figure 31 is a perspective front view of one embodiment of tri-mountable sink assembly. Figure 32A is a plan view of the embodiment of tri-mountable sink assembly depicted in Figure 31. Figure 32B is a sectional view of the embodiment of tri-mountable sink assembly along line H-H of Figure 32A. Figure 32C is a sectional view of the embodiment of tri-mountable sink assembly along line l-l of Figure 32A. Figure 32D is a perspective view of the sectional depicted in Figure 32C.

As depicted in Figures 31, 32A, 32B, 32C and 32D, sink 900 comprises a outwardly extending peripheral mounting flange 902A, 902B, 902C, 902D substantially the same as depicted and described with respect to embodiments 100, 200, 300, 400, 500, 501, 600, 700 and 800. This embodiment comprises two downwardly depending basin walls 904, 910 having a substantially D shape. Base members 906 and 908 serve as both basin walls and base members as a unitary element on each respective side. Base members 906, 908 are mirror images of one another and comprise a shoulder portion 912, 914 having a different radius than the rest of the base member 906, 908. In other embodiments (not depicted), it is not required that they be symmetric or mirror images. In a preferred embodiment, shoulder portions 912, 914 have a radius of about 1.5 inches and the rest of base members 906, 908 radius of about 9.75 inches such that the depth 946 of the basin is about 4.5 inches.

At the apex of the curve of base members 906, 908 is disposed an outflow channel 916. In this embodiment, the water flows along one or both base members 906, 908 in the direction from shoulder portions 912, 914 toward the and through an outflow channel 916 where it collects on a catch pan (comprised of lower sink walls 930, 932, 934 and a wall opposing 930 (not visible)) before flowing through drainage aperture 926. Thus, the water travels through outflow channel 916 where it collects in a cavity 924 defined by the catch pan and the underside of base members 906, 908. In the embodiment depicted, lower sink walls 932, 934 taper inwardly and downwardly toward centrally located drainage aperture 926. In one preferred embodiment, cavity 924 has a maximum depth 942 between catch pan (comprised of lower sink walls 932, 934, 930 and a wall opposing 930 (not visible)) and the underside of base members 906, 908 of about

2 inches. Drainage aperture 926 has a depth 944 of about 0.75 inches and a diameter 928 of about 1.5 inches.

In a preferred embodiment, the mouth opening has a distance 918 of about 22 inches and a distance 920 of about 14 inches. In this embodiment, the outwardly extending peripheral mounting flange has a width of about 0.5 inches for portions 902A and 902C and a width of about 2 inches for portions 902B and 902D and a uniform depth of about 0.25 inches for all portions.

Outflow channel 916 is essentially a gully formed between the two lips 940 of base members 906, 908. Lips 940 are formed by bending the stainless steel downwardly such that a radius of about 1/8 inch is formed at their union. The lips 940 have a depth 938 of about 0.5 inches and are disposed such that they form an aperture with a width 936 of about 0.25 inches. Beneath the lips 940 outflow channel 916 are flattened joining portions 932, 934 having a width of about 1.5 inches corresponding to the drainage aperture 926. In a preferred embodiment (not depicted), an approximately 0.5 inch wide and 3 inch deep wood member is disposed beneath and running along the entire outwardly extending peripheral mounting flange, essentially framing it.

In preferred embodiments of 500, 501, 600, 700, 800 and 900, the thickness of the basin walls and base members is one-sixteenth inch and the thickness of the outwardly extending peripheral mounting flange is one-fourth inch. The basin is formed of 16 galvanized 304 stainless steel and the outwardly extending peripheral mounting flange is formed of 3 galvanized 304 stainless steel. In one embodiment of the present invention, there is provided a sink mountable in a countertop according to a selected one of a plurality of mounting styles, comprising: a basin having a mouth and at least one base member wherein the basin further comprises an outflow channel disposed about the at least one base member; a catch pan having a drainage aperture wherein the catch pan is disposed below the at least one base member and wherein the drainage aperture is aligned with the outflow channel; a mounting flange fixed to and extending outward from the basin mouth, the mounting flange dimensioned to support the sink when mounted and comprising: a top surface dimensioned to cooperate for under mounting style with a bottom surface of the countertop and to lie for flush mounting style in the same plane as the top surface of the countertop;

and a bottom surface dimensioned to cooperate for drop in mounting style with the top surface of the countertop and to cooperate for flush mounting style with an upper surface of a sunken mounting ledge in the countertop. In one aspect, the at least one base member has a cross section forming the arc of a circle. In one aspect, the circle has a radius of from about 7 to about 20 inches. In one aspect, the at least one base member is disposed at a downward slope from the mounting flange to the outflow channel. In one aspect, the outflow channel is disposed about the apex of the circle.

The novel tri-mountable sink rim is an important feature of each embodiment of the present invention. The shape of the sink basin may take many forms and sizes. Thus, there is provided in accordance with the present invention a sink mountable in a countertop according to a selected one of a plurality of mounting styles, comprising: a basin having a mouth; and a outwardly extending peripheral mounting flange fixed to and extending outward from the basin mouth, the outwardly extending peripheral mounting flange dimensioned to support the sink when mounted and comprising: a top surface dimensioned to cooperate for under mounting style with a bottom surface of the countertop and to lie for flush mounting style in the same plane as the top surface of the countertop; and wherein a side surface dimensioned to cooperate for flush mounting style with a side surface of a sunken mounting ledge in the countertop; the top surface of the outwardly extending peripheral mounting flange and the side surface of the outwardly extending peripheral mounting flange form a substantially square edge, and wherein the bottom surface of the outwardly extending peripheral mounting flange and the side surface of the outwardly extending peripheral mounting flange form a substantially square edge. It is the substantially square edges at the junctures of the side surface with each the top and bottom surfaces that facilitate the mounting in all three manners.

Thus, in various embodiments, the sink has a basin that is generally oval, generally round, generally a non-geometric shape, generally a geometric polygon shape, and the like. Similarly, in various embodiments, the outwardly extending peripheral mounting flange is generally round, generally oval, generally a non- geometric shape, generally a geometric polygon shape, and the like. The basin and outwardly extending peripheral mounting flange may also be pie-shaped, D-

shaped, kidney bean shaped, quarter round, five-sided, and combinations thereof. Multi-basin sinks may be even and uneven in various configurations and embodiments.

In some embodiments, while there are substantially square edges at the junctures of the side surface with each the top and bottom surfaces, the radius at intersecting planes of the interior edge and the outwardly extending peripheral mounting flange is from about 1/64 inch to about 1 inch.

As such, those skilled in the art will appreciate that the conception, upon . which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent construction insofar as they do not depart from the spirit and scope of the conception regarded as the present invention.