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| Number | Title | Issue Date |
| 7434697 | Disposable, spin-on filter A disposable, spin-on fluid filter is constructed and arranged to mount onto a base that is configured with a threaded mounting shaft. The base provides a fluid inlet flow to the filter and a fluid exit path from the filter. The filter construction includes a housin... | 10/14/2008 |
| 7389883 | Filter cartridge A filter cartridge which comprises a filter pack (3) formed by a flat filtering medium, a tubular sheath (2) with a perforated wall, surrounding the filtering pack, and two respective end caps (5) having a first disc (16) and a second dis... | 06/24/2008 |
| 7264006 | Ozonated water flow and concentration control apparatus and method The invention features an apparatus and a method for supplying ozonated water to more than one process tool. Ozonated water of a first concentration received from an ozonated water generator and water received from a source are mixed to produce ozonated water of a s... | 09/04/2007 |
| 7188732 | Method for manufacturing of a liquid cleaner and cleaner manufactured by said method The present invention relates to a method for the production of liquid cleaners, consisting of a cleaner housing with a cleaning chamber exhibiting an inner and an outer end, and a cleaning insert arranged inside the cleaning chamber. The cleaner housing is given a ... | 03/13/2007 |
| 7163625 | Filtration device The present invention provides a filtration device. The invention employs filter media wrapped into spirals about an apertured core. Fluid may flow radially inward or radially outward during filtration. Embodiments using multiple filter media and embodiments achievi... | 01/16/2007 |
| 6959819 | Fatigue rated glass filled plastic filter assembly incorporating a coreless plastic filter element with integral seal A filter assembly for filtering fluids which may be readily disassembled includes a perforated center tube assembly which is fluid-tightly connected at one end to an injection molded plastic head and is closed at its other end; an injection molded plastic bowl havin... | 11/01/2005 |
| 6948504 | Ozonated water flow and concentration control method The invention features an apparatus and a method for supplying ozonated water to more than one process tool. Ozonated water of a first concentration received from an ozonated water generator and water received from a source are mixed to produce ozonated water of a s... | 09/27/2005 |
| 6827846 | Filter element change indicator handle A T-handle for a filter includes an integral mechanical indicator. The T-handle indicator has a threaded portion that extends through a hole in the filter cover and retains the cover to a canister. The indicator includes a spring-biased button that provides a visual... | 12/07/2004 |
| 6814243 | Replaceable filter with locking mechanism A filter assembly with a replaceable filter element and a reusable filter housing, which incorporates a locking mechanism to ensure that the filter system will not be operated without a filter element installed. ... | 11/09/2004 |
| 6679990 | Cartridge filter with integrated threading having anti-rotation feature A filter assembly includes a bowl assembly and a head member enclosing a filter cartridge. A filter center tube is permanently fixed to the bowl but allowed to rotate within a pocket in the bottom of the bowl. The top of the center tube is threaded for fa... | 01/20/2004 |
| 6595372 | Filter device A filter device includes a tubular casing [10] with a closed bottom, a filter element [20] received within the casing [10], a lid [30] which closes an open end of the casing [10], and has a communication hole communicating the inside and outside of the ca... | 07/22/2003 |
| 6481580 | Fluid filter with locking mechanism A fuel filter assembly with a replaceable filter element and a reusable filter housing, which incorporates a locking mechanism to ensure that the filter system will not be operated without a filter element installed.... | 11/19/2002 |
| 6471071 | Universal grommet seal for spin-on type filters An improved sealing grommet for a spin-on type fluid filter has an annular flange coupled to an interior wall of the grommet body which sealingly engages filter adapter standpipes of varying diameters. An annular cavity, formed by the interior wall of the... | 10/29/2002 |
| 6221246 | Filter housing assembly A filter housing assembly has a tubular standpipe to support successive filter elements within a filter housing closed by a closure plate. A spindle is fixed to the inner surface of the closure plate in position to move into the upper end of the standpipe... | 04/24/2001 |
| 6016923 | Filter cartridge for a filter for filtering liquid or gaseous media The invention relates to a filter cartridge for a filter for filtering liquid or gaseous media comprising two disks and a substantially hollow cylindrical filter member arranged inbetween the two disks, with the medium to be filtered flowing through the f... | 01/25/2000 |
| 6004458 | Filter/sanitizer A filter/sanitizer has a filter housing, provided with a fluid inlet and a fluid outlet, a filter cartridge with a hollow interior, located within the filter housing, and a sanitizer cartridge, with a hollow core, positioned within the hollow interior of ... | 12/21/1999 |
| 5868932 | Fiber with reusable shell and center tube A filter and filtering cartridge with a removable center tube, for the filtering of fluids. The invention relates to a filter for circulating fluid of the type consisting of a filtering cartridge inserted in an outer shell, with the outer shell being inte... | 02/09/1999 |
| 5846416 | Fluid filter having a reusable filter housing and a replaceable coreless filter element A reusable fluid filter assembly comprises a cylindrical housing, a top plate assembly, a top plate attachment member, and a replaceable coreless filter element. The housing has means for removably connecting the housing to the top plate, and a hollow cen... | 12/08/1998 |
| 5833847 | Apparatus for the filtration of industrial liquids and gases Apparatus for filtering industrial liquids and gases by separation of suspension particles based on the principle of radial stationary filtering. The filtering apparatus comprises a cover (9), a body (6) and a base (19) whose volume is adjustable by alter... | 11/10/1998 |
| 5824211 | Oil reclamation device An improved oil reclamation device for removing solid contaminates and water or other volatile contaminates from the engine lubricating oils and hydraulic fluids. More particularly, this oil reclamation device relates to a unique combination evaporation c... | 10/20/1998 |
| 5814215 | Oil filter including an integral filter support and housing drain valve assembly A lubricating oil filter for internal combustion engines is disclosed herein. The oil filter includes a vertical housing closed at the top by a screw cover and includes a filter support rotatably mounted on the screw cover for removably supporting an annu... | 09/29/1998 |
| 5795472 | Multistage filter device including a housing with removable sidewalls having a filtering capacity A filter device for separating solid material from a liquid includes a filter housing with vertically extending removable sidewalls wherein at the location of the removable sidewalls connections are provided to receive two vertically extending sidewalls i... | 08/18/1998 |
| 5776342 | Filter assembly A capsule type filter assembly provides increased strength by fixing ends caps of a filter element to a housing at both ends. At one end, a tubular part extends through a hole in the housing and is joined to the housing. An inner space of the tubular part... | 07/07/1998 |
| 5766449 | Fuel filter assembly A fuel filter assembly that provides a constant level of least restricted fuel flow through the fuel filter assembly during the useful life of the filter media by utilizing the least possible amount of filter media to provide the least possible pressure d... | 06/16/1998 |
| 5762788 | Fluid filter having a reusable filter housing and a replaceable coreless filter element A reusable fluid filter assembly includes a cylindrical housing, a top plate assembly, a top plate attachment member, and a replaceable coreless filter element. The housing has means for sealingly engaging the housing to the top plate, and a hollow centra... | 06/09/1998 |
| 5698097 | Oil filter including replaceable primary and secondary flow filter elements An oil filter for internal combustion engines is disclosed herein. The filter includes a housing with a bottom arranged below an open top and a screw-on cover threadedly engaged within the open top. The housing includes an inlet duct, a first oil discharg... | 12/16/1997 |
| 5695637 | Combination full flow and bypass filter with venturi nozzle A combined full flow and bypass oil filter for internal combustion engines includes a generally cylindrical filter body and a generally cylindrical filter head which is threadedly attached to the filter body. The filter head includes an inlet and an outle... | 12/09/1997 |
| 5580453 | Filter apparatus for waste water discharge system A waste water filtering apparatus includes a vertically extending filter housing having a plurality of filter tubes disposed therein. At least one of the filter tubes has an opening in the bottom end thereof and is closed at the top wherein waste water to... | 12/03/1996 |
| 5507942 | Fuel filter assembly A fuel filter assembly that provides a constant level of least restricted fuel flow through the fuel filter assembly during the useful life of the filter media by utilizing the least possible amount of filter media to provide the least possible pressure d... | 04/16/1996 |
| 5484523 | Arrangement for a filter for the purification of oil Filtration apparatus for the purification of various oil products such as combustion oil, lubricating oil, hydraulic oil, or transformer oil is disclosed, including a housing, a rigid, hollow core mounted longitudinally within the housing, and filter pape... | 01/16/1996 |
| 5389246 | Reservoir filter A suction and return line reservoir filter that can be used under high negative pressure suction applications is provided with a positive engaging means adapted to hold the bowl against the filter housing even during such high negative differential pressu... | 02/14/1995 |
| 5290443 | Faucet with microbial filter A faucet-mounted filter in which a housing is positioned in flow transmitting relation with the water flow line. A microporous, filter is positioned to sealingly occlude water flow through the housing so that all water flow through the housing must pas th... | 03/01/1994 |
| 5182017 | Filtrate separating device with flexible deformable liquid and gas impermeable wall Filtrate separating device having a pair of walls connected by a frame defining a receiving space for sludge to be filtered. The walls being displaceable away from one another, and made of a flexibly deformable liquid and gas impermeable material.... | 01/26/1993 |
| 5151181 | Filter system for wet vacuum cleaning apparatus The liquid filter assembly including a filter housing with an inlet below a prescribed external liquid level and having a generally cylindrical filter unit inside it with reusable filter elements which effectively operate at low pressure drops and permitt... | 09/29/1992 |
| 5135645 | Refrigerator water filter A water filter system for use in refrigerators having water dispenser and/or icemaker features. The filter system includes a commercially available filter cartridge which removes common water contaminants. A shut off valve temporarily stops the flow of wa... | 08/04/1992 |
| 5126041 | Faucet with removable filter for a water distiller A faucet assembly with removable filter has a bottom housing portion attached to a source of water. A top housing portion that includes a spout means attaches and detaches from the bottom housing portion. A valve assembly carried in the bottom housing is ... | 06/30/1992 |
| 5045198 | Faucet-mounted microbial filter A faucet-mounted filter in which a housing is positioned in flow transmitting relation with the water flow line. A microporous, hollow fiber filter bundle is positioned to sealingly occlude water flow through the housing so that all water flow through the... | 09/03/1991 |
| 5028323 | Filter for corrosive liquids The invention provides a liquid filter which is economically fabricated from commercially available flat and tubular plastics stock. The filter is openable from the top of replace filter elements carried by filter pipes that are rigid with the lower casin... | 07/02/1991 |
| 4980056 | Faucet-mounted microbial filter A faucet-mounted filter in which a housing is positioned in the water flow line of the faucet, in flow transmitting relation with the water flow line. A microporous, hollow fiber filter bundle is positioned to sealingly occlude water flow through the hous... | 12/25/1990 |
| 4783259 | Helical coil filter element A fluid filter having a deformable filter body containing a myriad of filter passageways which may be enlarged to clean the filter by deforming the body. The presently preferred filter embodiment has a fluid permeable filter mass comprising a compact mass... | 11/08/1988 |
