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| Number | Title | Issue Date |
| 7824550 | Fuel filter The invention relates to a fuel filter through which the fuel is to flow, in which water-separating, permeable layers are arranged spaced apart from one another in the direction of flow upstream of the filter layer, each time during operation of the filter the free ... | 11/02/2010 |
| 7329339 | Strainer device for fuel tank A strainer device for a fuel tank includes a sucking passage member provided with a passage opened in the fuel tank; a filtering member attached to the sucking passage member for covering a hole of the passage; and a conduit connecting portion extending outside the ... | 02/12/2008 |
| RE40051 | One-piece self-venting drain valve A self-venting drain valve is rotatably and slidably mounted to a filter assembly through an internally threaded base. The drain valve comprises a homogenously formed one-piece unitary valve body including a tubular valve stem portion and a valve knob portion. The v... | 02/12/2008 |
| 7276154 | Settling grid separator A settling grid separator apparatus and method of use which provides deep dehydration of high flow rate sludge in an environmentally friendly and energy efficient manner. The apparatus and method comprise and utilize an efficient mixing of the sludge with a floccula... | 10/02/2007 |
| 7232525 | Automatic tank cleaning system An automatic tank cleaning system includes a water recycling unit having a weir therein and a conically-shaped bottom, a cutting box having a portable weir therein, a hydrocyclonic separator, and a mud tank. Tank slop is pumped from the mud tank to the water recycli... | 06/19/2007 |
| 7094344 | Filter device The present invention relates to a filter device for removing impurities contained in liquid. A filter housing 18 is provided with a container for accommodating a filter bag 2 therein, a deposit recovery tank 3 for recovering a deposit and a flo... | 08/22/2006 |
| 6984313 | Filtration and purification system and method therefor An automatic water filtration and purification system will allow a continuous water flow to downstream fixtures while simultaneously and automatically regularly flushing and cleaning in-path filter media. The automatic water filtration and purification system has at... | 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 |
| 6974537 | Diesel fuel purifier The diesel purifier produces a fuel of high purity that meets the full ignition requirements at the combustion chamber of the engine. The purifier comprises a purification chamber encapsulated by an external body of the unit wherein, the purification chamber has a b... | 12/13/2005 |
| 6972092 | Self-venting valve end cap and method A one-piece, molded plastic end cap (1) is designed for installation in a diesel engine fuel filter. The end cap (1) comprises a disk-shaped filter support component (2), with a top portion adhesively connected to the fuel filter center tube ( | 12/06/2005 |
| 6953527 | Fuel tank with water trap A fuel tank for use with small internal combustion engines, the fuel tank having an inlet and an outlet and storing a quantity of fuel therein. A hydrophobic barrier is positioned within the fuel tank in flow communication with the outlet, and permits the passage of... | 10/11/2005 |
| 6939465 | Fluid filter system for snow making apparatus A fluid filtering system for filtering dirt and other debris from fluids being conveyed in a pipeline for snow making apparatus and other devices. An upright pipe segment is connected to a horizontal pipe segment through a pipe elbow or angle for conveying fluid suc... | 09/06/2005 |
| 6920031 | Static charge neutralizer A hydrocarbon fluid filter monitor cartridge having apparatus for neutralizing the electrostatic charge in the transient fluid including a mass of filter material, and electrical conductor having a main conductive path and a plurality of cooperating electrically con... | 07/19/2005 |
| 6866778 | Tank for draining a granular material/liquid mixture A drainage tank for granular material/liquid mixture includes a low part and a high part provided with a lid. A device for separating the liquid and the granular material is arranged in the low part. A device for evacuating excess liquid is arranged in the high part... | 03/15/2005 |
| 6709576 | Fuel filter with water discharge A fuel filter 10, particularly for diesel fuel, which is formed by a filter housing 11 with a filter head 12 and a filter enclosure 13. The filter head 12 has a fuel inlet 14 and a fuel outlet 15. The housing enclosur... | 03/23/2004 |
| 6637504 | Installation for recovering debris stopped by a filter at the inlet of a heat exchanger An installation for recovering debris stopped by a filter at the inlet of a heat exchanger: a washing water manifold (36) at the outlet of the filter (11) feeds a separator (37) provided with an outlet pipe (39) for water free of debris to which is connec... | 10/28/2003 |
| 6579454 | Magnetic separator In order to produce a magnetic separator for separating particles from a fluid, comprising a collection chamber through which the fluid is arranged to flow, and a device for producing a magnetic field by means of which the particles are retained in a coll... | 06/17/2003 |
| 6565746 | One-piece self-venting drain valve A self-venting drain valve is rotatably and slidably mounted to a filter assembly through an internally threaded base. The drain valve comprises a homogenously formed one-piece unitary valve body including a tubular valve stem portion and a valve knob por... | 05/20/2003 |
| 6540926 | Filter assembly The fuel filter assembly for filtering and removing water from a fuel under pressure includes an outerhousing, an inner sleeve member, an annular space between the outerhousing and the inner sleeve member, and filtering means for filtering the fuel. The f... | 04/01/2003 |
| 6533935 | Drain valve for fuel filter water separator A drain valve for a fuel filter water separator for an internal combustion engine has a first port mating with the vent opening of the separator, a second port mating with the drain opening of the separator, and a third port. The drain valve is actuatable... | 03/18/2003 |
| 6461507 | Continuous squeeze-dewatering device A continuous compression-type dewatering apparatus has a filter chamber (3), a drive shaft (17), a vane (15), and a supply path (50). The filter chamber (3) is delineated by an annular plate (2) and two side plates (1, 1). The drive shaft (17) passes thro... | 10/08/2002 |
| 6358416 | Drain valve for fuel filter water separator A drain valve for a fuel filter water separator for an internal combustion engine has a first port mating with the vent opening of the separator, a second port mating with the drain opening of the separator, and a third port. The drain valve is actuatable... | 03/19/2002 |
| 6328889 | Filter arrangement A filter arrangement is described in which fuel flows through a filter member in a radially outward direction. A sleeve surrounds the filter element and defines, with the filter member, an air collection chamber. One or more small openings are provided in... | 12/11/2001 |
| 6290842 | Coagulator A front packing medium accumulation layer (90) and a downstream packing medium accumulation layer (44) which are separated by a lower outflow prevention plate (40) are arranged within a coagulation tank (80). The superficial water passage velocity within ... | 09/18/2001 |
| 6264831 | Integrated fuel filter and fuel pump assembly An integrated fuel filter and fuel pump assembly with a water separation capability includes a fuel filter housing and a fuel filter element placed within the fuel filter housing. The fuel filter housing includes an outer surface with a connection interfa... | 07/24/2001 |
| 6258269 | Self vent drain valve A drain assembly for a fluid filter includes a female valve portion unitary with an end wall of a collection bowl, and having a socket with a cylindrical sidewall and an inner end wall. The end wall includes a plug, and a vent opening radially outward fro... | 07/10/2001 |
| 6207045 | Water-in-fuel integrated control module An integrated control module for connection to a fuel-water separator for controlling the drainage of water from the fuel-water separator includes a water-in-fuel sensor having a pair of spaced-apart probes, a drain valve whose open or closed condition is... | 03/27/2001 |
| 6203698 | Filter assembly The fuel filter assembly for filtering and removing water from a fuel under pressure includes an outerhousing, an inner sleeve member, an annular space between the outerhousing and the inner sleeve member, and a filter for filtering the fuel. The filter i... | 03/20/2001 |
| 6083381 | Fuel filter with sediment drain valve and level indicator A filter arrangement for filtering fluid comprises a housing and a valve arrangement. The housing includes an inlet, an outlet, and a draining aperture. The valve arrangement is constructed and arranged to move between a closed position and an open positi... | 07/04/2000 |
| 6042722 | Apparatus for de-watering and purifying fuel oils and other liquids An apparatus for separating water contaminants from a fuel which has a specific gravity which is lower than that of water. Contaminated fuel is drawn from a bottom of a tank and passed into a separator. The water stays at the bottom of the separator and i... | 03/28/2000 |
| 6001242 | Apparatus and method for high volume pipeline water filtration A method and apparatus for filtering particulates from a turbid liquid is provided. The apparatus is preferably used to filter particulates from water used to flush a pipeline after a cleaning operation, after hydrostatic testing or during product displac... | 12/14/1999 |
| 5916442 | Filter assembly The fuel filter assembly for filtering and removing water from a fuel under pressure includes an outerhousing, an inner sleeve member, an annular space between the outerhousing and the inner sleeve member, and filtering media for filtering the fuel. The f... | 06/29/1999 |
| 5879543 | Filter and dehydrator apparatus with threaded collar An environmentally safe and compatible filter and dehydrator apparatus for dehydrating and filtering impurities from fuel materials having a filter housing, a filter element composed of non-metallic, environmentally safe material and a water sensor used t... | 03/09/1999 |
| 5879552 | Method and apparatus for a self-purifying filter system A self-purifying filter apparatus comprising (1) a filter having a first surface and a second surface; (2) flow control means, such as a vacuum pump, for causing a stream of fluid interspersed with solid particulates to pass from the first surface to the ... | 03/09/1999 |
| 5855772 | Fuel filter and water separator apparatus with heater A fuel filter constructed and arranged with a heater and designed for fuel-water separation includes a unitary housing (casting) which has an open top to be closed by a threaded lid and a closed base which in combination with a surrounding sidewall define... | 01/05/1999 |
| 5851386 | Waste-oil cleaning apparatus A waste-oil cleaning apparatus includes a processing tank for holding waste-oil, and arranged such that non-oil liquids in the waste-oil settle in the base of the tank. A conduit and valve arrangement is provided for withdrawing the settled non-oil liquid... | 12/22/1998 |
| 5785850 | Cleanable oil filter A device for filtering fluids which is cleanable and re-usable is described. The device includes a cylindrical canister, a cylindrical lid and a filter cartridge. The device is adapted to be disposed in a fluid flow circuit, filtering particulate from the... | 07/28/1998 |
| 5720877 | Wringer bowl assembly for use in a centrifugal separator A wringer bowl assembly is fabricated from a base plate, a top plate, and a plurality of side faces extending therebetween. The side faces extend through a single plane eliminating all need to work the side faces to create a bowl. Each of the side faces i... | 02/24/1998 |
| 5688401 | Apparatus for removing silver from spent photoprocessing solution Spent solutions from photographic processors are fed into a conduit (18) to which subsequently are added precipitating agents from a first source (22) and flocculating agents from a second source (28); so that, well grown or ripened clumps of flocculated ... | 11/18/1997 |
| 5606989 | Self-venting valve arrangement A self-venting valve having its principal parts molded of nylon reinforced with glass fibers is mounted in the bottom of a fuel filter assembly to drain water and other contaminants from the assembly. The self-venting valve includes a plunger portion with... | 03/04/1997 |
