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Class Information
Number: 210/130
Name: Liquid purification or separation > Flow, fluid pressure or material level, responsive > Fluid pressure responsive by-pass
Description: Apparatus comprising means responsive to pressure to bypass liquids around treatment means.










Sub-classes under this class:

Class Number Class Name Patents
210/131 By movement of separation medium 69
210/133 In inlet and outlet closure header 57
210/132 With additional separation or treating means 85


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
6936161 Fluid filter apparatus Aug. 30, 2005
6932900 Filter device Aug. 23, 2005
6929739 Cooling device Aug. 16, 2005
6913040 Hydraulic fluid reservoir Jul. 5, 2005
6875343 Dual direction bypass valve Apr. 5, 2005
6863804 Pre-filter device Mar. 8, 2005
6800194 Low waste liquid filter Oct. 5, 2004
6793808 Combination valve support and sealing element for filter cartridges Sep. 21, 2004
6758969 Magnetically enhanced oil filter apparatus Jul. 6, 2004
6746604 Liquid filter Jun. 8, 2004
6733666 Filtering device, especially a suction return filter May. 11, 2004
6723232 Water purification apparatus Apr. 20, 2004
6685829 Fluid filter with a discharge dome that is fixed to the housing Feb. 3, 2004
6668390 Debris recovery for drainage system Dec. 30, 2003
6620316 Modular system for putting together different sized filter elements Sep. 16, 2003
6613220 Sieve filter for fluid conduits, especially for hydraulic pressure lines in internal combustion engines Sep. 2, 2003
6605210 Hydraulic fluid filter device Aug. 12, 2003
6585887 End cap relief valve mechanism for a filter Jul. 1, 2003
6584777 Apparatus for and method of filtering a fluid Jul. 1, 2003
6582593 Transmission sump filter with bypass valve Jun. 24, 2003
6579448 Liquid filter with a bypass valve Jun. 17, 2003
6544412 Filter including temperature and pressure responsive bypass Apr. 8, 2003
6540909 Fluid filter with pressure relief valve Apr. 1, 2003
6508932 Filter with valve having a hydrophobic coating Jan. 21, 2003
6497815 Sieve with suction cleaning and bypass elements Dec. 24, 2002
6495039 System for in-line filtering biological liquid Dec. 17, 2002
6495032 Filter arrangement Dec. 17, 2002
6485637 Liquid filter with a drain for residual liquid Nov. 26, 2002
6478953 Oil filter and dehydrator Nov. 12, 2002
6444119 Bilge water processing system with remote monitoring and control Sep. 3, 2002
6391194 Filter device for a fuel supply system of an internal combustion engine of a motor vehicle May. 21, 2002
6391193 Dual filter May. 21, 2002
6375836 Fluid filter Apr. 23, 2002
6294083 Sump covering filter with bypass valve Sep. 25, 2001
6287464 Oil filter assembly Sep. 11, 2001
6270659 Fuel filtering system for an engine Aug. 7, 2001
6261448 Oil filtration and heat exchange apparatus Jul. 17, 2001
6241880 Self-cleaning faucet filter Jun. 5, 2001
6224753 Water catchment device floating at the surface of a basin and supplying a pumping system May. 1, 2001
6224754 Filter head and liquid filter assembly with valve arrangements May. 1, 2001
6224758 Filter assembly May. 1, 2001
6217755 In-tank fluid filter with valve assembly Apr. 17, 2001
6214215 Resilient oil filter seal with pressure relief valves Apr. 10, 2001
6177003 Filter with safety element for filtering engine oil Jan. 23, 2001
6177010 Internal filter for fluid lines Jan. 23, 2001
6171482 Self-aligning reusable liquid filtering system Jan. 9, 2001
6143046 Filter cartridge having vibratable diaphragm Nov. 7, 2000
6139725 Oil reclamation device with vaporization chamber Oct. 31, 2000
6136183 Relief valve for filter device Oct. 24, 2000
6117334 Decontamination reactor system and method of using same Sep. 12, 2000

1 2 3 4 5 6 7










 
 
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