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| Number | Title | Issue Date |
| 7384547 | Replaceable filter element with integral annular trap The replaceable, outside-in flow filter element with integral annular trap provides a simple, efficient, tubular filter element that combines the advantages of inside out-flow and outside-in flow filters. The element includes end caps with pleated filter media exten... | 06/10/2008 |
| 7360611 | Flow system for a hydraulic choke solids strainer A strainer system having two separate strainers positioned in parallel, where one strainer can be cleaned while still permitting normal flow through the other strainer. The system flow circuit is arranged so that a high pressure backwashing flow can be applied to on... | 04/22/2008 |
| 7314066 | Air distributor for a bioleaching system An air distributor for use in heap or dump leaching systems is disclosed. The air distributor includes an air pipe having a series of holes for releasing air from the pipe and one or more protective members spaced outwardly of the air holes to shield the air holes. | 01/01/2008 |
| 7211923 | Rotational motion based, electrostatic power source and methods thereof A power system includes a member with two or more sections and at least one pair of electrodes. Each of the two or more sections has a stored static charge. Each of the pair of electrodes is spaced from and on substantially opposing sides of the member from the othe... | 05/01/2007 |
| 7069912 | Fuel filter and fuel supply system A fuel filter includes: a filtration chamber consisting of an inner cylinder and an outer cylinder disposed concentrically with a predetermined space, a bottom part that closes an opening end on one end side of the inner cylinder and the outer cylinder, and a lid pa... | 07/04/2006 |
| 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 |
| 6994738 | Snow filter A snow filter for an airplane cabin air supply system is provided with a coned inlet screen which allows some air to pass through and some snow to be retained. The coned configuration diverts much of the air and snow toward a downstream conical retaining and collect... | 02/07/2006 |
| 6749746 | Catch basin trap with filter An assembly for mounting in a side wall opening of a catch basin side wall and convertible into a trap for reducing the amount of matter being carried out of the catch basin by drainage water exiting the catch basin. The assembly includes a first trap member having ... | 06/15/2004 |
| 6666968 | Fluid filtration apparatus An oil filter assembly has an outer canister in which full flow and bypass flow filtration sections are operatively housed in a nested relationship. Oil forced into the canister has imparted thereto a vortex flow pattern which forces contaminant particles... | 12/23/2003 |
| 6511595 | Apparatus and methods for separating solids from flowing liquids or gases A means separates solid matter from liquid and includes a perforated separation panel through which the liquid can pass and which prevents the passage of the solid matter of a size larger than a predetermined size. When solid matter becomes located agains... | 01/28/2003 |
| 6461506 | Filter A filter for a fuel injection device, comprising a plurality of filter elements arranged within a housing such that, in use, fluid is directed through clearances of predetermined size between respective mutually adjacent ones of the elements for preventin... | 10/08/2002 |
| 5914035 | Apparatus for separating water from a fluid The fluid treatment apparatus may comprise a sedimenter or agglomerator for insertion in a fuel line between a fuel tank and a fuel injection pump in order to remove dirt particles and water from diesel fuel passing along the fuel line. A water reservoir ... | 06/22/1999 |
| 5885452 | Effluent filtering apparatus An effluent filtering apparatus including an effluent filter fluidly connected to the output of an effluent pump disposed in an effluent tank, for providing filtered effluent to a drain field having a plurality of finger pipes defining a plurality of fing... | 03/23/1999 |
| 5788848 | Apparatus and methods for separating solids from flowing liquids or gases An apparatus and method for separating material which includes solid and/or particulate matter from flowing liquid and/or gas. The apparatus includes a separation panel positioned in a fluid flow path, and the separation panel is housed in a separation ch... | 08/04/1998 |
| 5603829 | Device for centrifugally and mechanically separating particulate contaminants from lube oil A device for separating contaminants out of the lube oil of an internal combustion engine is provided which includes a filter element, a centrifuge rotatable by means of the lube oil flowing through it, and at least one supply passage for lube oil to be c... | 02/18/1997 |
| 5259953 | Fuel filter equipped with a quick fastening cover for an internal combustion engine A filter comprises a case for a fuel filter element and a cover that can be built according to two embodiments: one with holes for allowing the screwing of the filter onto a threaded base; and one with elbow-ducts projecting from the cover and integrally ... | 11/09/1993 |
| 5180489 | Filter cartridge having internal liquid trap A filter cartridge (10) for filtering liquid having an internal liquid trap (28). The cartridge (10) has a cylindrical housing (12) having a closed top end (14) and bottom end (16), and a side wall (30) which is perforated to allow liquid to pass through.... | 01/19/1993 |
| 5143575 | Spiral wound filter and method of making same The fluid filter (10) for fuel has a wound filter element (17) arranged in the housing (11) surrounded on its bottom end face (22) by a funnel-shaped welded-on cover cap (18). The cover cap (18) made of thermoplastic has an annular welding surface (25) wh... | 09/01/1992 |
| 5085769 | Fuel filter assembly for an oil burner pump An oil burner pump that includes a housing having a filter cartridge chamber that has an access opening which is closable by a removable cover. A filter cartridge is removable inserted into the chamber and is securable to the cover to be removed from the ... | 02/04/1992 |
| 4904412 | Emulsion-forming composition An emulsion-forming composition for forming an emulsion for use in a process for selectively recovering germanium or arsenic from an aqueous solution thereof by liquid membrane technology is disclosed, said composition consisting essentially of: a solvent... | 02/27/1990 |
| 4904384 | Apparatus housing a plurality of filter elements for separating contaminants from a fluid The invention relates to an apparatus for separating contaminants comprising a tubular filter body (12) having an inner flow space (18) which is separated by a filter layer (14) from an outer flow space (20). The one end face of the filter body (12) is cl... | 02/27/1990 |
| 4591434 | Advanced dual filtering apparatus A dual filtering apparatus for filtering deep fat frying vat oil includes a remote filtering screen attached to a tub by a flexible conduit for conveying oil and includes a fine filtering assembly that is at least partially provided within the upper chamb... | 05/27/1986 |
| 4412916 | Airless artificial kidney assembly The invention provides an artificial kidney extracorporeal circuit assembly including an artificial kidney having detachably attached multifunctional subassembly means for automatically venting gas bubbles from liquid flowing therethrough, for continuousl... | 11/01/1983 |
| 4391716 | Preferential wicking system Removal of a first liquid, such as water, from a tank containing a second liquid of lower specific gravity, such as diesel fuel, is achieved with a liquid trap chamber into which the first liquid is delivered by a primer wick and from which the first liqu... | 07/05/1983 |
| 4257890 | Fuel-water separator A device for separating water from diesel fuel is adapted to be used with conventional fuel filter fittings and consists of a conical screen-like member which serves to separate the water from the fuel and in which the inlet providing the fuel which may h... | 03/24/1981 |
| 4243533 | Filters with filtrate chamber overflow partitions having plural outlets Periodically operating pressure filter for the concentration of a solid matter suspension, comprising a filtering tank with an input conduit for introducing the suspension to be filtered under pressure, and a drain conduit for removal of the concentrated ... | 01/06/1981 |
| 4108775 | Cartridge filter A cartridge filter unit particularly adapted for use in a swimming pool water purification system because of its modular design, includes a readily accessible filter body. By removing a cover, a core assembly including a solids entrapping device and an in... | 08/22/1978 |
| 4098698 | Automatic recovery system for plugs and excavation materials The present invention relates to a system for automatically recovering the entirety of the excavated materials in the order in which they are raised to the surface. The excavated materials being delivered through the central passage of a double pipe syste... | 07/04/1978 |
