Field of the invention

The present invention is in the field of domestic sanitation. More particularly, the invention relates to a siphon with a bypass.

Background of the invention

In many cases the relief of a clogged sink is a simple task, yet in some of these cases it can be uncomfortable and unpleasant task. For many years a plurality of siphon devices are utilized for isolating the unpleasant odor of the drainage plumbing from rising up through the sink's drainage, by forming a water trap. The water trap is connected in line between the sink's drainage and the downstream wastewater pipe.

Fig. 1A schematically shows a widely used water trap which is also known as a "Siphon", or a "Bottle trap". The siphon of the prior art is commonly installed with a tubular connection adapter 1 with a proximal threaded connection la which connects to a drainage of a sanitary vessel such as a handwashing sink, an adapter pipe lb through which drained water flows into inner tube 2 of the siphon, and a distal threaded connection lc which connects to the upper section 4 of the siphon. The siphon itself comprises an inner tube 2, a siphon basin 3, and siphon upper section 4 which comprises drain outlet 5 which is connected to the downstream wastewater pipe (not shown). The drain water flow through the sink drainage into inner tube 2, down to basin 3 in which the water accumulates, and drain through outlet 5. While the drain water flow and accumulate at basin 3, heavy particles and foreign objects (e.g., hair pins) sink and trapped, thus achieving two goals of trapping the wastewater odor (i.e., the accumulated water prevents odors passage through basin 3) and preventing clogging elements from passing to the downstream wastewater pipe, thus allowing a simple relief of a clogged sink by threading out basin 3 (i.e., after preparing bellow a suitable vessel for the clogged water), relieving the clogged water, cleaning the clogging matter and trapped objects, and threading back basin 3. The abovementioned clog relief process is very simple to perform, yet the need to drain the substantial volume of accumulated water above the clogged basin (i.e., which in many cases starts flowing out with clogging matter at the initial relief of basin 3), turn the process to be fairly uncomfortable and unpleasant.

It is an object of the present invention to provide a siphon with evacuation means for an effortless relief of a clogged sink, by evacuating accumulated water above the clogged siphon directly into the wastewater utility pipe.

Other objects and advantages of the invention will become apparent as the description proceeds.

Summary of the Invention

The present invention relates to a siphon device with a bypass, comprising: a siphon upper section having a top coupling means for connecting to a drain outlet, a side drain opening having a coupling means for connecting to a wastewater utility pipe, wherein said siphon upper section is adapted to enable a direct flow via said side drain opening and thereby to bypass a basin of said siphon, thus evacuating substantial volume of accumulated water directly into the wastewater utility pipe.

According to an embodiment of the invention, the siphon upper section adapted to receive an inner tube which is detachably connected to the siphon upper section by coupling means selected from the group consisting of: threading, snap-fit, and Bayonet arrangement, wherein the detachment of said detachably connected inner tube from said siphon upper section, enables a direct flow of accumulated water into the wastewater utility pipe.

According to an embodiment of the invention, the inner tube is provided with a peripheral wiping element.

According to an embodiment of the invention, the siphon upper section comprises a fixed tube having a first bypass opening facing the side drain opening, and a rotatable tube which is concentric with said fixed tube and which comprises a second bypass opening, wherein said siphon can be rotateably shifted from a closed bypass state at which said second bypass opening is blocked by the wall of said rotatable tube, to an open bypass state, by turning said rotatable tube respectively to said fixed tube to the extent at which said second bypass opening overlaps with said first bypass opening, thereby enabling a direct flow of accumulated water into the wastewater utility pipe.

According to an embodiment of the invention, the fixed tube is located within the rotatable tube. According to another embodiment, the rotatable tube is located within the fixed tube.

According to an embodiment of the invention, the rotatable tube is rotated by a shifting knob, coupled with said rotatable tube through a guiding groove within the coupling area of the siphon basin and top section.

According to an embodiment of the invention, the siphon basin is provided with protruding means for reducing the required effort for threading of said siphon basin onto and out from the siphon upper section.

According to an embodiment of the invention, the drain outlet is of a sanitary vessel selected from the group of: handwashing sink, kitchen sink, and urinary vessel.

According to an embodiment of the invention, the coupling means are selected from the group of threading and bayonet arrangements.

According to an embodiment of the invention, the siphon upper section comprises a fixed tube having a first bypass opening facing the side drain opening, and a slideable tube which is concentric with said fixed tube, wherein said siphon can be axially shifted from a closed bypass state at which said slideable tube covers said first bypass opening, , to an open bypass state by linearly sliding said slideable tube respectively to said fixed tube to the extent at which said first bypass opening is uncovered, thereby enabling a direct flow of accumulated water into the wastewater utility pipe.

According to an embodiment of the invention, the siphon further comprises one or more gaskets for providing odor isolation between the fixed tube and the rotatable tube.

According to an embodiment of the invention, the siphon further comprises one or more gaskets for providing odor isolation between the fixed tube and the slideable tube.

According to an embodiment of the invention, the slideable tube comprising a second bypass opening of which sliding operation of said slideable tube uncovers or covers the first bypass opening of the fixed tube, wherein a closed bypass state is defined by non-alignment of said first and second bypass openings and an open bypass state is defined by alignment of said first and second bypass openings, thereby enabling or disabling a direct flow of accumulated water directly into the wastewater utility pipe.

Brief Description of the Drawings

Fig. 1A schematically shows a widely used water trap, according to the prior art;

Figs. 1B-1C schematically illustrate a siphon with a detachable inner tube, according to an embodiment of the present invention;

Fig. 2A schematically illustrates a side view of a siphon in its closed off bypass state, according to an embodiment of the present invention;

Fig. 2B schematically illustrates a side view of the siphon of Fig. 2A in its opened bypass state, according to an embodiment of the present invention;

Fig. 2C schematically illustrates a front view of a rotatable tube of the siphon of Fig. 2A, according to an embodiment of the present invention;

Fig. BA schematically illustrates a side view of the siphon of Fig. 2A installed under a sink, according to an embodiment of the present invention; Fig. 3B schematically illustrates a side view of the installation of Fig. 3A in a clogged sink situation with the siphon in its closed off bypass state, according to an embodiment of the present invention; and

Fig. 3C schematically illustrates a side view of the installation of Fig. 3A in the clogged sink situation with the siphon in its opened bypass state, according to an embodiment of the present invention; and

Fig. 4 schematically illustrates a side view of a siphon with a sectioned bottom, according to an embodiment of the present invention;

Fig. 5 schematically illustrates a side view of the siphon of Fig. 4 with O-ring gaskets, according to an embodiment of the present invention;

Fig. 6 schematically illustrates a side view of the siphon of Fig. 2A with a circumferential gasket on a bypass opening, according to an embodiment of the present invention;

Fig. 7 schematically illustrates a front view of a detachable inner tube of the siphon of Fig. IB having a peripheral wiping element, according to an embodiment of the present invention; and

Fig. 8 schematically illustrates a side view of a siphon, according to another embodiment of the present invention.

Detailed description of the drawings

The present invention relates to a siphon with inner tube, which is adapted to enable a direct flow above the clogged basin of the siphon, thus evacuating substantial volume of accumulated water directly into the wastewater utility pipe.

Reference will now be made to several embodiments of the present invention, examples of which are illustrated in the accompanying figures for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the comprising elements herein may be employed without departing from the principles of claimed invention.

Figs. 1B-1C schematically illustrate a siphon 100, according to an embodiment of the present invention, in which siphon 100 comprises a detachable inner tube 2, wherein detachable inner tube 2 is detachably connected to upper section 4 by suitable means such as an external threading 2a on the top portion of detachable inner tube 2 (Fig. IB) and a corresponding inner threading in upper section 4. Of course alternate mechanical joints arrangements such as Bayonet or snap-fit arrangements can be used in lieu or in conjunction with threading 2a.

Whenever significant quantity of sunken heavy matter, or foreign objects clog siphon 100, a drainage vessel can be placed below siphon 100, the drainage of the sanitary vessel (e.g., sink) to which siphon 100 is connected is blocked by a stopper (e.g., a rubber drain stopper or other drainage closing means), basin 3 is being removed and cleared from the clogging matter/objects, detachable inner tube 2 is being removed, basin 3 is re-assembled and the drainage of the sanitary vessel can be opened, thereby enabling a bypass flow of clogged water directly to drain outlet 5 (as indicated with the letter D). According to some embodiments of the present invention, detachable inner tube 2 is provided with a peripheral wiping element 701, as illustrated in Fig. 7, whereas detachable inner tube 2 is being removed, wiping element 701 wipes the inner wall of upper section 4 from undesirable adhered matter, thus improving the cleaning operation and providing elongated period before further clogging occurs. While wiping element 701 of Fig. 7 is illustrated near to the mid-height of inner tube 2, it can be installed at alternate positions, e.g., near to the top of inner tube 2.

According to an embodiment of the present invention, Bayonet coupling arrangement is utilized in lieu of threading for connecting detachable parts of siphon 100, such as detachable inner tube 2, basin 3 or upper section 4.

Of course, any detachable connection (e.g., between basin 3 and upper section 4 or between detachable inner tube 2 and upper section 4) may leak, and in the absence of detachable inner tube 2, unpleasant odor may pass through, and therefore, according to an embodiment of the present invention, siphon 100 is provided with suitable sealing means (e.g., rubber O-Rings, rubber gaskets). According to some embodiments of the present invention a tight fitness design of connected elements is utilized for providing odor and fluid escape). According to some embodiments of the present invention, the bypass flow of clogged water directly to drain outlet 5 is enabled by two flow openings, within two concentric tubes of which inner tube 2 is comprised, where one of the tubes can rotate with respect to the other, thus allowing a selection between two states of open/closed off bypass (i.e., where the two apertures can selectively be overlapping or be positioned away) as further illustrated in the following embodiments.

Fig. 2A schematically illustrates a side view of a siphon 200 in its closed off bypass state, according to an embodiment of the present invention, in which siphon 200 is installed with a connection adapter 1 having a proximal threaded connection la which connects to a sanitary vessel (e.g., handwashing sink, kitchen sink, urinary vessel etc.), an adapter pipe lb through which drained water flows into a fixed tube 202 of siphon 200 and a distal threaded connection lc which connects to a corresponding threading of top section 201 of siphon 200. Of course, different coupling means can be selected by a person skilled as an alternative to the common threading means in accordance to different applications of siphon 200. Furthermore, siphon 200 is not limited to use in conjunction with adapter 1 and multiple different installation variants are possible, such as a direct connection to the drainage of a sanitary vessel having suitable coupling means.

Siphon 200 comprises a top section 201, with a side drain opening 5 having a coupling means, such as a threading 5a (i.e., for connecting to the wastewater utility pipe), a fixed tube 202, comprising a first bypass opening 202a facing opening 5, and a rotatable tube 203 having a second bypass opening 203a and defining fixed tube 202. Siphon 200 further comprises a siphon basin 204 with a guiding groove 204a for guiding the travel of a rotation knob 203b of rotatable tube 203, wherein by shifting rotation knob 203b, rotatable tube 203 is rotated (i.e., with respect to fixed tube 202) , thus shifting siphon 200 from a default closed off bypass state, where second bypass opening 203a does not overlap with first bypass opening 202a (i.e., first bypass opening 202a is blocked by the wall of said rotatable tube 203), to an open bypass state (shown in Fig. 2B), where second bypass opening 203a overlaps with first bypass opening 202a, thereby relieving substantial portion of the accumulated water to the wastewater utility pipe as will be further illustrated in Figs. 3A-3C. One skilled in the art will appreciate alternate installation positions for the shifting mechanism, for example, near to the top of top section 201 (as illustrated in Fig. 8), in accordance with specific embodiments of the proposed siphon device. As can be easily seen in Figs. 2A, 2B and Fig. 8, rotation knob 203b protruding outwardly from the outer surface of the siphon device, thereby enabling a user to handle a clogged sink without requiring to disassemble the siphon. In other words, such configuration eliminates the need to disassemble any part of the siphon, e.g., such as the siphon basin 204, which is usually required to be assembled in order to handle a clogged situation.

Fig. 2C schematically illustrates a front view of rotatable tube 203, according to an embodiment of the present invention, in which rotatable tube 203 comprises a top annular flange 203c for stabilizing rotatable tube 203 against a corresponding internal groove (not shown) inside top section 201, and a threaded socket 203d which is suitably located to allow an easy threading of rotation knob 203b through guiding groove 204a, thus together with flange 203c provides the required support and rotation capability of rotatable tube 203.

Fig. 3A schematically illustrates a routine side view of siphon 200 assembled with sink 301, according to an embodiment of the present invention, in which adapter 1 is connected to the sink drainage element 301a of sink 301 and siphon 200 is in its closed off bypass state (i.e., bypass opening 203a of rotatable tube 203 is turned to the opposite direction, relative to bypass opening 202a of rotatable tube 202), wherein outlet 5 is connected to the wastewater pipe inlet 304. Further shown in Fig. 3A is a normal accumulation of waters 302 with a small quantity of clogging matter 303 at the bottom of siphon basin 203.

Fig. 3B schematically illustrates a side view of sink 301 in a clogged sink situation with siphon 200 in its closed off bypass state, according to an embodiment of the present invention, in which clogging matter 303 has accumulated at the bottom of siphon basin 204 to an extent that prevents water flow through basin 204, resulting with a substantial quantity of water 302 accumulated within siphon 200 and sink 301.

Fig. 3C schematically illustrates a side view of sink 301 in a clogged sink situation with siphon 200 in its opened bypass state, according to an embodiment of the present invention, in which knob 203b is shifted, thus shifting siphon 200 to an open bypass state, wherein bypass opening 203a overlap with bypass opening 202a, thereby relieving a substantial portion of the accumulated water from sink 301 and siphon 200 to the wastewater pipe 304, and allowing an effortless detachment of basin 204, disposal of clogging matter 303 and reassembly of basin 204 (i.e., with a corresponding unthreading and re-threading of knob 203b into rotatable tube 203).

One skilled in the art could readily realize multiple different mechanical arrangements, which can provide the support and rotation of rotatable tube 203 with respect to fixed tube 202 without departing the principals of the proposed siphon 200, such as fastening of rotatable tube 203 to siphon basin 204 while having basin 204 and top section 201 provided with suitable coupling and means such as a bayonet arrangement. Furthermore, while Figs. 1-3 illustrate siphon 200 with an inner fixed tube (i.e., fixed tube 202) and an outer rotatable tube (i.e., rotatable tube 203), according to some embodiments of the invention, other embodiments of the invention comprise an inner rotatable tube that is inserted within an outer fixed tube. For example, siphon 400 of Fig. 4 which comprises a top section 4 (shown with a sectioned bottom) with a fixed tube 401, and an inner rotatable tube 402 positioned within the fixed tube 401, wherein the upper portion of rotatable tube 402 is inserted into tube lb of adapter 1 and the lower portion of rotatable tube 402 is connected to the lower portion of fixed tube 401 by bayonet plug 402a threaded into a corresponding bayonet socket 401a of fixed tube 401, allowing the shifting of siphon 400 from a closed bypass state (i.e., where the wall of rotatable tube 402 blocks a bypass opening 401b) to an open bypass state, in which bypass opening 402b overlap with bypass opening 401b.

Furthermore, the proposed siphon device can be provided with an axial alignment of the bypass openings in lieu of the aforementioned rotational alignment (i.e., having a fixed tube with a first bypass opening and a slideable tube with a second bypass opening, where the alignment of the first and second openings is achieved by linearly sliding the slideable tube respectively to the fixed tube, thus enabling the direct drainage of clogged water towards drain opening 5), with the corresponding adaptations of the alignment arrangements (i.e., in lieu of rotation knob 203b of Fig 2B and the Bayonet arrangement of Fig. 4). Moreover, the proposed siphon device can be provided with a slideable tube not comprising a second opening of which sliding operation uncovers or covers the first bypass opening of the fixed tube, thereby enabling or disabling a direct flow of accumulated water directly into the wastewater utility pipe (i.e., bypassing a clogged basin of the siphon.

According to a preferred embodiment of the present invention, one or more gaskets for providing improved odors' isolation between tubes 401 and 402, such as O-ring gaskets 501 of Fig. 5 located above/below bypass openings 401b and 402b.

According to another embodiment of the present invention shown in Fig. 6, a circumferential gasket 601 is installed on onto the lip of 202a (of Figs. 2A-2B), providing odors' isolation between the aligned bypass openings 202a and 203a of tubes 202 and 203. Of course, multiple alternative sealing elements can be selected by one skilled in the art in accordance with various embodiments of the present invention.

Although embodiments of the invention have been described by way of illustration, it will be understood that the invention may be carried out with many variations, modifications, and adaptations, without exceeding the scope of the claims.