Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7686952 | Liquid filtering apparatus There is provided a portable liquid filtering apparatus for filtering liquid used in a container, such as cooking oil in deep fat fryers. The apparatus includes a mounting bracket that attaches to a portion of the container. The mounting bracket supports a liquid pu... | 03/30/2010 |
| 7417012 | Slow release lubricant additives gel A lubricant additive gel formed by the gellation of two or more lubricant additives for the slow release of the additive components into a fluid. The lubricant additive gel slowly releases into its component lubricant additives when contacted with the fluid such as ... | 08/26/2008 |
| 7410569 | Filtration system for metalworking fluids A filtration system for metalworking fluids has panel filter elements arranged in cells in which the filter frames and panels are approximately parallel to one another. The filter frames are disposed such that the filter surfaces are oriented at an acute angle with ... | 08/12/2008 |
| 7410572 | 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... | 08/12/2008 |
| 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 |
| 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 |
| 7354511 | Hydraulic unit for industrial trucks A hydraulic unit for industrial trucks, comprising a motor pump unit which is directly attached to a tank, a reflux filter which has an elongate filter casing for a filtering element adapted to be introduced into the tank through an opening, a hose coupling, and an ... | 04/08/2008 |
| 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 |
| 7309422 | Fryer filtration arrangement A fryer filtration arrangement utilizes certain automated components. ... | 12/18/2007 |
| 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 |
| 7282140 | Sump filter with filter element cartridge A sump filter assembly wherein a filter element that may or may not be removably disposed in a filter housing is sealingly engaged with the filter housing by way of a sealing member to separate the filter housing cavity between dirty and clean spaces. The filter ele... | 10/16/2007 |
| 7258096 | Oil filter fixing system for V type engine The number of constituent parts for an oil filter fixing system such as a bracket, are reduced, and the oil leaks during filter element exchange are avoided. The oil filter fixing system comprises a V bank of a V type engine, a crankcase fixed with the V bank and an... | 08/21/2007 |
| 7258784 | Solid liquid filtration apparatus and method A method and system for separating a particulate contaminate from a contaminated liquid medium involves filtering the contaminated liquid medium with a filter element having an afflux surface made of plastic particles that are sintered together. The contaminated liq... | 08/21/2007 |
| 7232518 | Filter device A filter device includes at least one filter unit (10), connectable to a hydraulic circuit (14), with at least one supply line (16), one discharge line (18), and at least one cooling unit (22). The cooling unit is connected to a se... | 06/19/2007 |
| 7182863 | Additive dispersing filter and method of making An oil-conditioning filter, for use with an internal combustion engine, includes a filter element and an additive cartridge, for gradually dispensing an oil additive over time. The additive cartridge has a beneficial oil-conditioning agent contained therein. Placeme... | 02/27/2007 |
| 7182869 | Fuel filter arrangement A fuel filter and vapor separator arrangement having at least one layer of liquid fuel permeable material defining at least one substantially enclosed cavity. The permeable material has at least one opening to provide fluid communication of liquid fuel within the ca... | 02/27/2007 |
| 7179390 | Method of filtering a fluid and remote filtering station Filtering of an operating fluid of a mechanical device is performed utilizing a pumping device of the mechanical device which routinely circulated the operating fluid within the mechanical device. A remote filtering station of the present invention has a first condu... | 02/20/2007 |
| 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 |
| 7160447 | Fluid filtration system including replaceable filter module A fluid filtration system includes a filter receiver located in a fluid reservoir housing and a replaceable filter module adapted to mount in the filter receiver. Fluid to be filtered is exposed to a filter media included in the filter module and mounted in a filter... | 01/09/2007 |
| 7140698 | Hydraulic control and operation system for a railroad car retarder A hydraulic control and operating system is provided for a railroad car retarder to control the movement of railroad cars in railroad classification yard. The system utilizes a double-acting hydraulic cylinder to operate the retarder mechanism and includes a hydraul... | 11/28/2006 |
| 7132047 | 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... | 11/07/2006 |
| 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 |
| 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 |
| 7087160 | Outside-in flow engine and transmission filter and method A suction-side transmission or engine filter includes a filter bag assembly having an outlet portion and a media bag enclosing an inner support structure, the filter bag assembly is contained at least partially within a housing having an outlet port. The outlet port... | 08/08/2006 |
| 7083722 | Filter manufacturing process using a combined welding and cutting step A method of manufacturing a filter comprises the steps of assembling multiple layers of filtration material on top of one another to form an assembly; holding the assembly between an ultrasonic weld horn and a weld nest so that the assembly has a marginal area outsi... | 08/01/2006 |
| 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 |
| 7056442 | Method and apparatus for flushing contaminants from a container of fluids A contaminant-flushing machine for removing contaminants from a container, such as an engine transmission, air-conditioner coil, or transmission cooler, which includes hoses for coupling to the transmission cooler and a pump for circulating fluid through the hoses a... | 06/06/2006 |
| 7052605 | Device for purifying liquids A device for cleaning liquids, in particular edible oils, by means of a filter in a filter housing, the filter being connected downstream of a pump, and a motor for driving the pump, which has a rotor having a rotor disc with vanes in an immersion housing being prov... | 05/30/2006 |
| 7033513 | Method and apparatus for filtering tap changer oil A filter apparatus suitable for electrical substation high-voltage transformer tap changers and similar oil-filled equipment removes moisture and other contaminants from the insulating oil bath in which the tap contacts are immersed. The apparatus can be configured ... | 04/25/2006 |
| 7018531 | Additive dispensing cartridge for an oil filter, and oil filter incorporating same An oil-conditioning filter, for use with an internal combustion engine, includes a mechanical filter element and a central additive cartridge, for gradually dispensing an oil additive over time. The additive cartridge has a beneficial oil-conditioning agent containe... | 03/28/2006 |
| 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 |
| 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 |
| 7001508 | Oil filtering device in a crankcase recess An oil filtering device disposed at a position apart from a crankshaft in a crankcase. An oil filtering device 24 is constituted in that a filter storage 34 formed in a left half case body 1a of a crankcase 1 contains a filter elem... | 02/21/2006 |
| 6984319 | Environmentally friendly acid neutralizing full flow cartridge An environmentally friendly acid neutralizing filter cartridge is adapted to be mounted in a cartridge mounting body of an engine oil circuit for filtering particulates and neutralizing acid in oil. The filter cartridge comprises a support housing that comprises sub... | 01/10/2006 |
| 6977037 | Apparatus for use in reclaiming coolant used in cutting machines An apparatus for reclaiming coolant used in cutting machines and for returning the reclaimed coolant to the coolant system of the cutting machine is provided. The apparatus includes a shallow receptacle for supporting a barrel that cuttings are deposited into during... | 12/20/2005 |
| 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 |
| 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 |
