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WO/1995/011072A1 |
The invention is directed to a fluid filter arrangement having a filter assembly connected to a housing. A filter assembly includes a cap having a radially outward periphery, a canister attached to the radially outward periphery of the c...
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WO/1995/010346A1 |
A coreless filter (10) comprises a filter element (12), which is a spirally wound loop of material, so that it becomes rigid and forms central passageway (20), is disposed in a housing (14b) and sealed there by endcap (14a). The loop inc...
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WO/1995/009037A1 |
A snap-together, all-plastic filter assembly (20) for filtering fluids includes a generally cylindrical injection molded plastic outer shell (21) which has a closed base (36) and an open opposite end (35) and which defines a hollow inter...
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WO/1995/007745A1 |
A fuel filter element (24) is mounted within a housing (12). The housing has an inlet port (14) in direct fluid communication with a chamber (18). The outlet port (16) is in direct fluid communication with a central standpipe (22). The s...
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WO/1995/006802A1 |
An oil filter comprises a fabric filter element located in the casing of the filter and a pressure regulating valve across said element. Said pressure regulating valve includes a valve pipe, a valve nut screwing on one end of said valve ...
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WO/1995/003871A1 |
A spin-on fluid filter cartridge with a replaceable filter element is provided, comprising a housing, an internally threaded annular collar, a replaceable filter element, and an externally threaded mounting head assembly. The annular col...
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WO/1995/003110A1 |
A device and method for making a filtering device for a refrigerant circuit including a hollow body (2) with a bottom (4) and an opposite opening (5) sealed with a sealing member (6, 36), said sealing member comprising a fluid outlet (8,...
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WO/1995/002781A1 |
An adapter (50) is insertable into an existing fluid line system at a quick connector coupling joint. The adapter (50) has a male section (80), which is configured to connect to the female connector body (12) of the quick connector coupl...
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WO/1994/023818A1 |
The invention relates to a tubular filter element for filtering fluids, having a zig-zag folded filter mat (10) the two facing and downwardly directed ends (12) of which are bonded by a bed of adhesive (24) and secured in position, the f...
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WO/1994/022550A1 |
A back-flow filter for hydraulic fluid comprises a filter head which can be secured on a fluid container, a filter pot arranged on one side of the filter head, a removable cover on the other side of the filter head, a filter element arra...
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WO/1994/022548A1 |
The invention relates to a filter device with a housing (10) having connections for a fluid which can be secured to a filter pot (16) which has at least one filter element (20) secured by a holder (18), and with a closure (22) preventing...
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WO/1994/021350A1 |
A compressible differential pressure energized seal (18) coacting between a filter element (10) and the like and a housing (21) comprises a compressible portion (35) having a large open end (36) and a small open end (37), the large end (...
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WO/1994/019086A1 |
A filter assembly (10, 40) includes a disposable filter element (21, 51), a reusable perforated supporting core (23, 53), and first and second end caps.
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WO/1994/016793A1 |
A lengthening pipe for the filtering pot of a return filter consists of a connecting pipe which projects from the free end of the fitering pot, and of a pipe secured to the connecting pipe. A sealing ring which does not project radially ...
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WO/1994/015689A1 |
A combination filter and evaporator unit (10) for use in small engine applications includes a filter member (12) that is screw threadedly engaged to the evaporator unit (14) to facilitate replaceement of filter media (18) as needed. The ...
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WO/1994/014517A1 |
A screwable filter (1) for liquids, in particular a lubricant oil filter for internal combustion engines, has a filter housing subdivided into a pot-shaped top part (2) and into a lid-shaped bottom part (3), as well as a bearing part (10...
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WO/1994/011082A1 |
A filter includes a cylindrical filter element (10) having a longitudinal axis, first and second end surfaces, and a plurality of longitudinal pleats (11). Each of the pleats has a pair of legs with first and second surfaces. The pleats ...
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WO/1994/011083A1 |
A filter element (14) is assembled by first fixturing the parts together so that the assembly may be manipulated by automated assembly equipment before the end cap (58) sealant (70, 75) is fully cured in an oven which is off-line from th...
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WO/1994/009880A1 |
A filter element (10) comprises a porous, thick-walled, integral, self-supporting, resin impregnated and bonded fibrous, tubular filter structure (11) having a hollow core (15); an inner shell (20) of a first large pore size porous media...
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WO/1994/008695A1 |
A liquid filter includes an annular filter cartridge and a combination anti-drain back and relief valve assembly. The combination valve (40) includes a valve seat (42) from which axially extending arms extend and a spring retainer (54) a...
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WO/1994/006534A1 |
A method of increasing service life of an oil and a filter in a transmission which converts a variable speed input into a constant speed output for driving a generator producing constant frequency power in an airframe in accordance with ...
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WO/1993/016315A1 |
A method for combining a fluid filter (46) to a tubing quick connector (24) includes the use of a metal cap (32) welded to an outer peripheral surface (36) of the quick connector housing (25). The cap is also welded at an outer periphera...
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WO/1993/012858A1 |
The filter system comprises a filter element (10) arranged in wave- or zig-zag-shaped folds and having flat filter element portions (12) and intermediate bending lines (14). The longitudinal edges of the filter element (10) are connected...
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WO/1993/001874A1 |
A fuel filter and boost pump apparatus including a filter chamber (203), a fuel filter (247) on the inside of the chamber, and a fuel pump (201) on the outside of the chamber. The chamber has a bottom mounted remotely actuated discharge ...
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WO/1992/019356A1 |
The invention relates to a device for removing dirt particles (with and without oil deposits) from water or from dirty water without free oil, especially water remaining after clothing, work clothing and the like has been washed in large...
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WO/1992/018219A1 |
An arrangement for a filter for purification of oil, for example combustion oil, lubricating oil, hydraulic oil or transformer oil, from liquid and particulate impurities which are in suspension, said filter (10) being formed of a filter...
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WO/1992/017262A1 |
The invention concerns a filter for liquids, the filter having a detachable housing and filter elements which can be removed and disposed of simply and without any danger of pollution to the environment. In addition, the individual funct...
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WO/1992/006762A1 |
Various types of filters are known. However, regardless of the size of the filter, there may be problems associated with storing filters prior to use and also with their disposal after use. Described herein is a disposable filter (10) in...
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WO/1992/005856A1 |
A filter assembly includes a base and a filter cartridge installed on the base. The filter cartridge is retained on the base by a radially expandable, resilient, circumferentially extending snap ring which is expanded by rotation of a ca...
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WO/1992/004960A1 |
The invention relates to a filter (1) for filtering gaseous and liquid media, especially in an oil filter for internal combustion engines, with a filter casing (2) and a filter packing (8) of a porous, deformable material, e.g. an absorb...
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WO/1992/004097A1 |
A fuel filter for a motor vehicle includes a housing made of a base Nylon 12 material to which are added stainless steel fibers to render the housing electrically conductive while retaining moldability. The electrically conductive housin...
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WO/1991/016960A1 |
A filter/conditioner for filtering and dispensing conditioners and inhibitors to the engine coolant of an internal combustion engine includes a circumferentially extending array of filtering media circumscribing a container defining a co...
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WO/1991/016124A1 |
An improved microporous, modular filter structure assembled from replaceable filter cartridges (25) housed within a filter cartridge assemby (10) connected at opposed ends by means of symmetrical headers (41). The headers include a tube ...
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WO/1991/012061A1 |
A liquid filter (11) has a housing (13) with a bottom and a top (17). A vertical partition (27) divides the housing into an inlet chamber (29) on one side and outlet chamber (43) on the other side. One type of filtration material is loca...
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WO/1991/003302A1 |
A liquid filter as disclosed which includes a housing in which a filtering media is disposed. A relief valve permits the liquid filtrate to bypass the media when the pressure differential across the media exceeds a predetermined level. T...
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WO/1991/003301A1 |
A fuel filter assembly (200) employs a base (212) which mounts a disposable filter element cartridge (214). The cartridge (214) includes a dual stage filter system wherein fuel flows axially to a primary filter element (274) for removing...
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WO/1991/003300A1 |
An improved spin-on type oil filter housing (10) having a closed top end (11) and an open bottom end (12), the improvement of which consists of a handle (40) for facilitating hand installation and removal of the filter from an automobile...
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WO/1991/001173A1 |
An engagement member (38), which is detachably securable to the liquid outlet nipple of a filter receiving fitting (35), is movably carried by a filter housing (20) which also carries an annular seal (27) which resides against the sealin...
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WO/1990/015654A1 |
The end caps of a filter element are formed on the element by dispensing a photo-initiated polymer in a transparent mold, setting the end of the filter media array in the mold, exposing the mold to ultraviolet light for a time sufficient...
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WO/1990/013346A1 |
A liquid filter for filtering the lubricating oil of an internal combustion engine includes a bypass passage permitting liquid to flow from the outlet to the inlet in a direction opposite to normal flow through the filter when the engine...
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WO/1990/006799A1 |
Oil filter (1) for internal combustion engines, used preferably in the partial oil flow in addition to a conventional oil filter. The oil filter comprises a filter housing (2a, 2b, 3o, 3u) containing a filter packing (5) consisting of a ...
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WO/1990/005009A1 |
A liquid filter (10) for fuels is proposed in which the rolled-type filter element (17) arranged in the casing (11) is surrounded on its lower face (22) by a funnel-shaped welded cover (18). The cover (18) of thermoplastic synthetic mate...
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WO/1990/005010A1 |
The present invention provides an improved filtration system particularly adapted for use in a fluid circulation system in a moving body. The filtration system includes a filter body (4) formed from a porous resilient material. The filte...
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WO/1990/000433A1 |
A liquid filter for an internal combustion engine includes a filter cartridge housed within an outer shell closed by an end member. The end member provides a central outlet opening and circumferentially spaced inlet openings circumscribi...
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WO/1990/000432A1 |
A liquid filter includes a housing having a pressure chamber portion in which a filtering media is carried and a support engaging portion which attaches the housing to the engine upon which the filter is mounted. The support engaging por...
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WO/1989/006567A1 |
Filter apparatus for filtering a liquid, the apparatus comprising a rigid chamber (10) having a liquid inlet (20) and a filtrate outlet (18), a mass (30) of hollow fibre cross-linked matrix of Alpha cellulose is loosely packed into the c...
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WO/1989/001815A1 |
A liquid filter for an internal combustion engine includes a housing having a pair of opposite end walls and a circumferentially extending side wall interconnecting the end walls. A centertube extends through the housing interconnecting ...
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WO/1989/000880A1 |
A replaceable hollow fiber cartridge filter, including a bundle of hollow fibers (17) of about 8-11 inch length and a porous sleeve (18) surrounding the fibers (17) substantially throughout their length, is positioned in a standardized h...
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WO/1988/008324A1 |
A filtering device (10) includes a head (12) intended to be permanently installed in a fluid dispensing machine and a disposable canister (14) therefor. A central chamber (34) is formed in the head which chamber is in communication with ...
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WO/1988/005335A2 |
A filtering cartridge (62) with two filter elements (12, 14) having a common axis to filter contaminated fluids such as motor oils or edible oils. The filter elements (12, 14) are composed of a roll of a double-layered, honeycombed, plas...
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