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Class Information
Number: 251/360
Name: Valves and valve actuation > Valve > Seats > Removable
Description: Subject matter which are structurally modified to provide for ready removal from the valve body or the partition therein.


Sub-classes under this class:

Class Number Class Name Patents
251/362 Compression or tension retained 71
251/361 Mounted between casing sections 67
251/363 With seal 134


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7398955 Gripping valve seat Jul. 15, 2008
7347206 Control group of a second-stage regulator for scuba divers Mar. 25, 2008
7201363 Valve Apr. 10, 2007
7175158 Tub valve having versatile mounting structure Feb. 13, 2007
7168678 Needle valve construction Jan. 30, 2007
7077384 Integrated post-guided seat ring assembly Jul. 18, 2006
7066447 Sleeve valve with adjustable flow characteristics Jun. 27, 2006
7051994 Control valve with detachable descrete curtain valve assembly May. 30, 2006
7017605 Valve assembly Mar. 28, 2006
7014170 Seat ring for valves Mar. 21, 2006
7004448 Trim insert for choke assembly Feb. 28, 2006
6923423 Small bore gate valve Aug. 2, 2005
6918377 Inward-opening variable fuel injection nozzle Jul. 19, 2005
6889702 Replaceable valve seat ring with enhanced flow design May. 10, 2005
6886762 Nozzle insert for dual mode fuel injector May. 3, 2005
6830230 Air blast device Dec. 14, 2004
6817594 Grooved valve seat with inlay Nov. 16, 2004
6789784 Seat ring for valves Sep. 14, 2004
6786471 Diaphragm valve Sep. 7, 2004
6752377 Pressure relief valve with selectable orifice size Jun. 22, 2004
6698449 Replaceable valve seat ring with enhanced flow design Mar. 2, 2004
6666433 Grooved valve seat with inlay Dec. 23, 2003
6612537 Cartridge gate valve Sep. 2, 2003
6517049 Method and valve for controlling fluid flow, and method of servicing valve Feb. 11, 2003
6427711 Inline check valve Aug. 6, 2002
6409150 Pin valve with removable valve body cover Jun. 25, 2002
6378840 Electromagnetic valve Apr. 30, 2002
6357721 Valve arrangement Mar. 19, 2002
6152423 Control valve main seal retainer with an assembly and removal tool Nov. 28, 2000
6135132 Valve seat arrangement Oct. 24, 2000
6024125 Rotary valve Feb. 15, 2000
5941266 Angle entry rotary valve Aug. 24, 1999
5911407 Metal valve housing Jun. 15, 1999
5897099 Expansion valve and refrigerating system Apr. 27, 1999
5873528 Reduced cavity module with interchangeable seat Feb. 23, 1999
5806563 Dual ball valve assembly Sep. 15, 1998
5803037 Joined type valve seat Sep. 8, 1998
5758682 Safety shut off valve Jun. 2, 1998
5732930 Valve having tee slot attachments in service area Mar. 31, 1998
5692725 Valve seal Dec. 2, 1997
5671776 Valve mount assembly Sep. 30, 1997
5653423 Knife gate valve with mechanically retained gate seat Aug. 5, 1997
5642754 Method of securing a valve seat member within a tubular housing and a ball valve assembly Jul. 1, 1997
5598974 Reduced cavity module with interchangeable seat Feb. 4, 1997
5562116 Angle entry rotary valve Oct. 8, 1996
5549274 Ball guide for an electronically actuated control valve Aug. 27, 1996
5427354 Valve assembly Jun. 27, 1995
5375813 Soft seat valve Dec. 27, 1994
5275086 Fluid actuator with internal pressure relief valve Jan. 4, 1994
5271426 Gate valve Dec. 21, 1993

1 2 3


 
 
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