Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7749383 | Filter cartridge with crush ribs A filter cartridge in a filter-in-filter design with an inner filter and an outer filter. A mechanism, for example crush ribs, connects an upper end plate of the outer filter and an upper end plate of the inner filter to prevent relative axial and radial movement th... | 07/06/2010 |
| 7407058 | Filter element for filtering fluids A filter element for filtering fluids has at least one filter unit (12, 14, 16) that is disposed concentrically around the axis of the element. The unit is supported on at least one supporting element (24, 26, 30) in the direction of the flow of the fl... | 08/05/2008 |
| 7361271 | Environmentally friendly dual lube venturi filter cartridge An environmentally friendly dual lube venturi filter cartridge which has no metallic components. A plastic centertube having a venturi section supports a bypass filter element on standoffs molded into the centertube. An outer concentric full flow filter element surr... | 04/22/2008 |
| 7347937 | Perfluorinated thermoplastic filter cartridge A filtration cartridge having a housing with an inlet and an outlet and a filtration membrane contained within the housing and located between the inlet and the outlet is described. The membrane is sealed in such a manner that all fluid must flow through the membran... | 03/25/2008 |
| 7344579 | Pipe trap A pipe trap comprising a body, a disc filter, a pipe and a plurality of mesh filter suitable for filtering gases is provided. The pipe trap body has a gas inlet and a gas outlet. The disc filter and the mesh filters are enclosed inside the pipe trap body. One end of... | 03/18/2008 |
| 7323106 | Multi-element filter with multiple pleat channel height A filter has multiple pleated filter elements having axially extending channels having a transverse pleat channel height and a lateral channel width. The pleated filter elements have different channel heights. ... | 01/29/2008 |
| 7232521 | Environmentally friendly acid neutralizing cartridge An environmentally friendly acid neutralizing filter cartridge for mounting into a chamber of a cartridge mounting body for neutralizing acid in engine oil in an oil circulation circuit of an engine. The environmentally friendly acid neutralizing filter cartridge co... | 06/19/2007 |
| 7197936 | Pressure sensor A ring-like groove 140 for accommodating a seal ring 130 is formed in fitting surfaces 12c and 13c of pressure introduction portions 12b and 13b for introducing a pressure from a measured member | 04/03/2007 |
| 7179380 | Environmentally friendly dual lube venturi filter cartridge An environmentally friendly dual lube venturi filter cartridge which has no metallic components. A plastic centertube having a venturi section supports a bypass filter element on standoffs molded into the centertube. An outer concentric full flow filter element surr... | 02/20/2007 |
| 7178675 | Drain water filter assembly A drain water filter assembly for filtering debris laden liquids. The filter assembly has an apertured filter holder constructed and arranged to be placed into a basin, tub or sink. A removable and disposable filter is provided for placement within and securement to... | 02/20/2007 |
| 7097693 | Combination depth and phase separation membrane filter A combination depth and phase separation membrane filter to remove entrained liquids and immiscible liquids from hydrocarbon liquids, protecting industrial analyzers from liquid and solid contamination, etc. The preferred embodiment of the present invention contempl... | 08/29/2006 |
| 7090772 | Filter bag assembly A filter bag assembly includes an outer bag having an open end, a closed end opposite the open end, and a longitudinal axis. The open end of the outer bag is sized and shaped for receiving liquid to be filtered. A filter member is loosely mounted in the outer bag an... | 08/15/2006 |
| 7090773 | Coaxial full-flow and bypass oil filter An improved combination full flow bypass oil filter is presented where the output of the bypass filter is obtained by non-venturi means and the extremely clean bypass filter output is measurable at all engine oil pressures. The bypass filter output is not blended wi... | 08/15/2006 |
| 7087166 | Filter element and filter device having replaceable filter Providing a filter device with various functions, such as remarkable improvement of the throughput of the downstream filter, ion-removing property of the upstream filter. A filter element comprises an upstream filter and a downstream filter made of the same or diffe... | 08/08/2006 |
| 7014761 | Environmentally friendly dual lube venturi filter cartridge An environmentally friendly dual lube venturi filter cartridge which has no metallic components. A plastic centertube having a venturi section supports a bypass filter element on standoffs molded into the centertube. An outer concentric full flow filter element surr... | 03/21/2006 |
| 7011754 | Filtering device having filter bag seal A filtering device includes a container, a cover attached on top of the container having a space communicating with an inlet opening and a chamber of the container, and a filter screen received in the container for filtering the fluid from the inlet opening to the c... | 03/14/2006 |
| 7001517 | Collapsible filter element A filter element assembly has at least two cylindrically shaped and concentrically arranged filter media sleeves each connected at one end thereof to an inlet plate and each connected at the other end to a closed end terminal plate. Openings are provided in the inle... | 02/21/2006 |
| 6997404 | Porous plastic fuel filter for a fuel injector An improved filter assembly for a solenoid-actuated fuel injector having a fuel-resistant porous filter element in a filter retainer tube for disposition in the fuel tube of the fuel injector. Fuel flow through the filter element is axial. The filter retainer tube r... | 02/14/2006 |
| 6991665 | Evertible filter wrap with straps A filter wrap for a cylindrical filter has a sheet with an interior side facing the filter when the sheet is wrapped on the filter, and an exterior side. It also has an edge defining a main opening to the interior for receiving the filter. At least one strap is prov... | 01/31/2006 |
| 6800200 | Dual-flow filter cartridge A filter cartridge configured to provide two or more levels of fluid filtration or conditioning from within a single filter cartridge is disclosed, the filter cartridge including a housing that defines an interior cavity and has an inlet portion for receiving fluid ... | 10/05/2004 |
| 6797164 | Filtering system for a pool or spa A filtering system for a spa or pool that includes a closed filtering tank which houses a filter having a filter body which receives a filter bag having a sheath encompassing the exterior of the filter body and a pocket extending inwardly from the front end of the s... | 09/28/2004 |
| 6787033 | Apparatus for filtering impurities out of fluid Impurities contained in a fluid are removed by a filter having a housing containing a full flow filter, a bypass filter, and a conduit. The conduit includes a pressure reduction section. The full flow filter, bypass filter, and conduit are positioned such that the b... | 09/07/2004 |
| 6712967 | Liquid filter assembly with concentric filter sleeves of bag-type media A filter element assembly has at least two cylindrically shaped and concentrically arranged filter media sleeves each connected at one end thereof to an inlet plate and each connected at the other end to a closed end terminal plate. Openings are provided in the inle... | 03/30/2004 |
| 6685843 | Internal spa filter An internal spa filter for a spa, having a filter body with an inlet opening at its one end and a discharge orifice at its opposite end, the sides of such body are formed with auxiliary spa water inlet openings. The filter also includes a filter bag havin... | 02/03/2004 |
| 6676834 | Self-cleaning water filter A self-cleaning water filter, coupled to a water flow having particulates therein, that includes a pair of canisters, each having a cylindrical wedge wire water filter screen. An elongated brush running the length of the screen is disposed between two con... | 01/13/2004 |
| 6641637 | Additional flow filter An open flow fluid filter has a pleated main filter element having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips. The loop has... | 11/04/2003 |
| 6638423 | Multiple stage fuel strainer assembly A multiple stage fuel strainer assembly for a fuel tank in a vehicle includes a strainer adapted to be connected to an inlet of a fuel pump disposed in the fuel tank. The multiple stage fuel strainer assembly also includes a valve connected to the straine... | 10/28/2003 |
| 6638435 | Method for draining a barge or other like container A disposable extended sump line having a pump end and a mouth end for removing water from a barge or other container. The mouth end has a double layered strainer basket covering its entrance. The pump end preferably has a valve which may be opened to intr... | 10/28/2003 |
| 6585893 | Concentrically-arranged, multi-sleeve bag-type filter element assembly A filter insert includes a plurality of annularly-shaped, bag-type filter sleeves (111, 112, 113) concentrically-arranged. The ends of the sleeves are attached to the flanges of an inlet plate 114, an annular terminal plate 124 or a circular terminal plat... | 07/01/2003 |
| 6585892 | Concentrically-arranged flexible media and support basket with second stage cartridge filter A concentric arrangement of bag-type filter sleeves 11, 12 of a filter insert are removably supported within a concentric arrangement of screens 60, 61 of an annularly-shaped basket 10a. The screens respectively support the filter sleeves against radial f... | 07/01/2003 |
| 6569329 | Personal water filter bottle system A bottle mountable filtration system typically includes a plurality of different filter elements or filtering and treatment elements having a substantially common central axis that are mounted to extend into a bottle from a cap with a manual valve. Mounti... | 05/27/2003 |
| 6540914 | Cleanable filter with spinning screen A fluid filter which comprises a canister having an open end and a closed end, the canister sealing to an adapter body to prevent leakage between the canister and the adapter body, the adapter body having a plurality of fluid inlet ports extending through... | 04/01/2003 |
| 6517722 | Self cleaning fuel oil strainer A self-cleaning fuel oil strainer, coupled to a continuous fuel flow, that includes a pair of canisters, each having a cylindrical wedge wire fuel oil filter screen. An elongated brush running the length of the screen is disposed between two confining wal... | 02/11/2003 |
| 6511599 | Multi-element cylindrical filter with equalized flow A filter filters fluid flowing along an axial flow direction and includes a plurality of concentric cylindrical pleated filter elements having a common axis. A plurality of annular radial gaps between filter elements provide additional flow axially throug... | 01/28/2003 |
| 6511598 | Concentrically arranged filter element assembly A filter element assembly includes two cylindrically shaped and concentrically arranged flexible media sleeves (302, 301), wherein the sleeves are respectively supported against radial flow by an inner and outer cage (325, 330). Respective ends of the sle... | 01/28/2003 |
| 6495040 | Septic tank filtering system A filtering system for filtering effluent in a septic tank including an outer secondary filter secured within a pipe fitting, wherein the outer secondary filter includes a central opening passing therethrough; an inner primary filter, wherein the inner pr... | 12/17/2002 |
| 6488848 | Cleanable filter with ported cylinder adjacent screen A reusable filter for mounting on an engine is disclosed herein. The filter includes cylindrical reusable filter mounted in a housing. The reusable filter includes an outer screen, an inner screen, and a ported cylinder between the outer and inner screens... | 12/03/2002 |
| 6478957 | Filtering apparatus for a wastewater treatment tank A filtering apparatus of T-shaped configuration includes a vertically extending filter element receiving tube and a horizontally extending outlet conduit portion. A removable tubular filtering element having a flexible seal surrounding the outer surface o... | 11/12/2002 |
| 6478958 | Apparatus for filtering impurities out of fluid The present invention provides a filter apparatus for use in removing impurities contained in a fluid that includes a housing, a full flow filter contained in the housing, the housing and the full flow filter arranged such that the entirety of the fluid t... | 11/12/2002 |
| 6440305 | Fuel filter A submersible fuel filter device (1) of suctional type is connectable to the end of a fuel inlet hose (2) in a fuel tank and comprises a filter (3) consisting of porous plastic with a surrounding outer wall (10) with an upper border (11), a lid (4) provid... | 08/27/2002 |
