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| Number | Title | Issue Date |
| 8002975 | Filtration device with a pressure-activated means for bypassing serial filter layers A serial-flow filtration device is provided with pressure-activated pressure-breachable seal or a pressure-activated gate for by-passing at least one of its constituent layer (or layers) of filtration material. The filtration device comprises a housing, a fluid inle... | 08/23/2011 |
| 7875171 | Suction filter for an automatic transmission A filter assembly includes a filter housing including an inlet, through which hydraulic fluid enters the housing, and an outlet, through which hydraulic fluid exits the housing, valve housing containing a bypass valve located adjacent the inlet in a chamber, the val... | 01/25/2011 |
| 7513992 | Filtration device with pressure-activated means for bypassing serial filter layers A serial-flow filtration device includes a pressure-activated gate for by-passing at least one of its constituent layer (or layers) of filtration material. The filtration device includes a housing, a fluid inlet, a fluid outlet, and at least an upper and a rearmost ... | 04/07/2009 |
| 7399419 | Modular filtration system A filter system includes a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. A plurality of control assemblies are associated with each of the modules. Each of the control assemblies is in fluid commun... | 07/15/2008 |
| 7357865 | Automatic transmission fluid filtration system An automatic transmission fluid (ATF) filtration system that combines both coarse filtering mesh and microfine depth filtering elements simultaneously to remove a wide range of particulate matter, but also maintains an unrestricted flow of ATF to the pump to ensure ... | 04/15/2008 |
| 7329342 | Metallic particle trap bypass filter A metallic particle trap bypass filter is disclosed generally comprising a housing, a filter element disposed therein, an inflow chamber, an outflow chamber, a bypass valve connecting these chambers, and a magnet disposed in the outflow chamber. In some embodiments,... | 02/12/2008 |
| 7316778 | Staged oil filter incorporating pelletized basic conditioner An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element having a reactive basic conditioner therein. The reactive basic conditioner is provided to counterac... | 01/08/2008 |
| 7299994 | Oil cooler bypass valve A valve actuating mechanism for a transmission/engine fluid cooler bypass valve of the type in which a responsive element expands to urge a valve member against a valve seat and thereby causes transmission fluid to flow through an oil fluid cooler. A cast valve hous... | 11/27/2007 |
| 7294263 | Dual transmission filter design A method and apparatus for a compact dual transmission filter design is provided. More precisely, a single filter housing is adapted to accommodate a primary filter and an auxiliary filter in fluid communication with a primary pump and auxiliary pump, respectively. ... | 11/13/2007 |
| 7291264 | Staged oil filter incorporating additive-releasing particles An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element containing a beneficial additive therein. The beneficial additive is provided to extend the useful l... | 11/06/2007 |
| 7287575 | Component for supporting a filter member, a device including a tubular filter member and said component, a plate heat exchanger including a tubular filter member and said component The invention relates to a component (20) for supporting a tubular filter member (15) in a portable channel (2) in a plate heat exchanger (1). The invention also relates to a device including the component (20) and the filter membe... | 10/30/2007 |
| 7285213 | Conveying unit The subject of the invention is a conveying unit (2) with a baffle (5), with a fuel pump (6) arranged therein and with a filter (14) which is arranged at the bottom (7) of the baffle (5) and which precedes an inlet orifice (... | 10/23/2007 |
| 7279091 | Filter device A filter device has a filter housing (10) receiving a first filter element (12), through which a medium may flow in a given direction, and has a bypass device (22). Along with the first filter element (12), a second filter element (32 | 10/09/2007 |
| 7263846 | Refrigerant bypassing and filtering apparatus of air conditioner and method for controlling the same A refrigerant bypassing and filtering apparatus of an air conditioner is disclosed which is capable of effectively removing foreign matter such as slag produced in a refrigerant line, not only when the air conditioner is initially operated, but also during normal op... | 09/04/2007 |
| 7243740 | Filter assembly having a bypass passageway and method A filter assembly including a primary flow passageway having at least one filter deployed therein and a secondary flow passageway having a bypass filter deployed therein is provided. The filter assembly further includes a bypass valve assembly configured to selectiv... | 07/17/2007 |
| 7217357 | Oil filter for engines, transmissions or automatic transmissions Oil filter for engines, transmissions or automatic transmissions, said oil filter being integrated in an oil pan, at least one bypass valve being arranged on the oil filter, the bypass valve containing a spring whose spring resistance increases with increasing tempe... | 05/15/2007 |
| 7182855 | Fuel filter with valve indicator A fuel filter includes a first filter chamber, a second filter chamber and a valve assembly disposed between the first and second filter chambers. The valve assembly includes a valve casing with a valve head connected to a flag indicator slidably disposed within the... | 02/27/2007 |
| 7166210 | Oil filter cartridge The present invention relates to small vehicles such as lawn and garden tractors and more specifically to an oil filter cartridge or assembly usable with the transmissions of such vehicles. The cartridge is comprised of a filtering element, a strainer element and a ... | 01/23/2007 |
| 7156991 | Liquid additive slow-release apparatus driven by a filter pressure gradient The present invention provides a filter assembly containing a filter element and a container as a depot for a liquid additive. The container can include an inlet and an outlet, which are configured to allow a liquid to flow into the container mix with the contained ... | 01/02/2007 |
| 7153422 | Liquid additive slow-release apparatus driven by a filter pressure gradient The present invention provides a filter assembly containing a filter element and a container as a depot for a liquid additive. The container can include an inlet and an outlet, which are configured to allow a liquid to flow into the container mix with the contained ... | 12/26/2006 |
| 7150824 | Method for determining when to replace a filter having a pressure relief valve A fluid filter assembly having a relief valve for visually indicating when a filter element may be replaced. The fluid filter assembly of the present invention provides a vertical, transparent housing having a fluid inlet for communicating a fluid into the housing a... | 12/19/2006 |
| 7125003 | Liquid treatment injector A reagent injector and/or aerator for aqueous fluids can use a variety of different removable end caps to adapt a venturi to different types of water treatment systems. The invention is adjustable because the end caps can be removed and springs that activate poppet ... | 10/24/2006 |
| 7094343 | Filter device The invention relates to a filter device (10) for filtering a liquid, in particular a hydraulic oil, having a substantially cylindrical filter housing (12), which accommodates a filter element (30) and can be closed off by means of a cover (1... | 08/22/2006 |
| 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 |
| 7059591 | Method and apparatus for enhanced oil recovery by injection of a micro-dispersed gas-liquid mixture into the oil-bearing formation The method and apparatus for making a micro-dispersed gas-liquid mixture which includes a gas-liquid ejector unit, a cavitation unit and a jet dispersing unit installed in a sequence. All above referenced units are installed into a cylindrical housing which in turn ... | 06/13/2006 |
| 7056432 | Tank mounted oil filter assembly The present invention relates to small vehicles such as lawn and garden tractors and more specifically to an oil filter assembly used with the transmissions of such vehicles. The filter assembly is housed within the transmission case to reduce mounting brackets outs... | 06/06/2006 |
| 7048848 | Hybrid spin-on filter A hybrid oil filter assembly includes a housing and a first (e.g., conventional) oil filter element disposed in proximity to a bottom portion of the housing. The first oil filter element contains an open inner volume. A second oil filter element having a generally c... | 05/23/2006 |
| 7029582 | Fuel filter device A fuel filter device includes a first member made of a plastic and having a connecting portion to be connected to a fuel intake port, and a second member made of a plastic and assembled with the first member for forming an interior space communicating with the conne... | 04/18/2006 |
| 7000655 | Fluid additive delivery systems A fluid additive delivery system includes a container for a fluid additive gel. The container has one or more openings to allow contact of the fluid with the gel to cause one or more additive components in the gel to be released into the fluid. ... | 02/21/2006 |
| 6972087 | Transmission sump filter with bypass valve A filter (10) for filtering debris out of the fluid in a transmission sump (S) prior to the fluid entering a transmission pump (P) is disclosed. The filter (10) includes a filter housing (12) presenting a filter inlet (30), a bypass inlet... | 12/06/2005 |
| 6969461 | Combination particulate and acid-neutralizing filter The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. Preferably, the particulate filter and the acid-neutralizing filter are positioned wit... | 11/29/2005 |
| 6966994 | Contamination control for engines A method is provided of detecting contamination of engine fluid in an engine. Engine fluid is provided to a particle counter, and the cleanliness of the engine fluid is measured with the particle counter during operation of the engine. ... | 11/22/2005 |
| 6964265 | Connecting structure of fuel filter and fuel pump A connecting structure for connecting a fuel filter and a fuel pump with an inlet. The connecting structure includes a joint bracket to be retained in the fuel tank, and a filter section formed with the fuel filter. The joint bracket includes a pump side connecting ... | 11/15/2005 |
| 6955754 | Compact fluid cleaning system An efficient fluid cleaning system. The efficient system includes a first mechanism for changing the pressure of a fluid from a first pressure to a second pressure, the second pressure being lower than the first pressure. A second mechanism distributes the fluid wit... | 10/18/2005 |
| 6935569 | Oil cooler bypass valve A valve actuating mechanism for a transmission/engine fluid cooler bypass valve of the type in which a responsive element expands to urge a valve member against a valve seat and thereby causes transmission fluid to flow through an oil fluid cooler. A cast valve hous... | 08/30/2005 |
| 6908545 | Hydraulic filter assembly with priority valve A filter module assembly utilizes a priority valve installed in a manifold to allow for continuous filtration of hydraulic fluid up to a predetermined flow value and diverts occasional high flow to a secondary circuit. This arrangement provides both a low pressure d... | 06/21/2005 |
| 6905596 | Fluid magnetization straw A fluid magnetization straw includes a hollow tube adapted as an outer tube, and at least one magnetizing member. A magnetizing member retaining end and a tube joint are configured at a minimum of one extremity of the outer tube, thereby containing the magnetizing m... | 06/14/2005 |
| 6884341 | Filter device to capture a desired amount of material A filter device is used to capture a desired amount of material suspended in a liquid or gas. The device includes a planar filter 530 mounted in a chamber defined by a body member having an upper body 510, a lower body 520, an inlet port 525 | 04/26/2005 |
| 6881330 | Multi-stage EDM filter A two-stage, retrofit filter is adapted for use with an electrical discharge machine (EDM) includes nested inner and outer filtering elements that may be placed as a unit in the same tank and over the apertured standpipe used for a one-stage filter, such that the fl... | 04/19/2005 |
| 6841065 | Fluid filter with pressure relief valve A fluid filter assembly having a relief valve for visually indicating when a filter element may be replaced. The fluid filter assembly of the present invention provides a vertical, transparent housing having a fluid inlet for communicating a fluid into the housing a... | 01/11/2005 |
