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Class Information
Number: 277/502
Name: Seal for a joint or juncture > Seal between relatively movable parts (i.e., dynamic seal) > Circumferential contact seal for other than piston > For valve stem in internal combustion engine
Description: Dynamic, circumferential contact seal wherein the seal is at the joint or juncture between a reciprocating part (i.e., stem of a valve controls the flow of gas in an internal combustion engine) and a housing part (i.e., a guide for a valve in an internal combustion engine).










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8668203 Valve stem seal with gas relief features Mar. 11, 2014
8601991 Low profile valve stem seal in cylinder head Dec. 10, 2013
8439330 Stem shoulder seal with double rings and an assembly of independent dual stem seals May. 14, 2013
8246006 Articulating guide seal Aug. 21, 2012
8235394 Valve stem seal with gas relief features Aug. 7, 2012
8011669 Valve stem seal with gas relief features Sep. 6, 2011
7900932 Valve stem sealing assembly Mar. 8, 2011
7862048 Gasket for a valve in an internal combustion engine Jan. 4, 2011
7828298 Firewall sealing assembly Nov. 9, 2010
7654537 Gasket for a valve in an internal combustion engine Feb. 2, 2010
7438036 Oil metering valve seal Oct. 21, 2008
7025030 Valve stem seal assembly with changeable cap Apr. 11, 2006
7017915 Stem or shaft seal arrangement Mar. 28, 2006
6877719 Valve shaft seal Apr. 12, 2005
6764079 Valve seal assembly with straight-walled retainer Jul. 20, 2004
6761141 Valve stem seal with built-in sprue Jul. 13, 2004
6752398 Valve stem seal assembly Jun. 22, 2004
6679502 Valve stem seal assembly with valve guide retainer Jan. 20, 2004
6659469 Molded rubber jacket with fabric reinforcement for valve stem seal Dec. 9, 2003
6609700 Valve seal assembly with spring finger retainer Aug. 26, 2003
6527275 Molded rubber jacket with fabric reinforcement for valve stem seal Mar. 4, 2003
6412467 Valve seal assembly module with spring and retainers Jul. 2, 2002
6394462 Push rod seal for disc brake actuator May. 28, 2002
6394463 Oil seal May. 28, 2002
6269787 Rocker cover gasket assembly with integral valve stem seals Aug. 7, 2001
6270082 Coextruded valve stem seal Aug. 7, 2001
6254103 Seal Jul. 3, 2001
6227548 Seal for machine parts that reciprocate relative to one another May. 8, 2001
6006778 Device for sensing the amount of oil in oil pans Dec. 28, 1999
5873337 In-guide valve stem seal Feb. 23, 1999
5846391 Seal for a sensor element of a gas sensor Dec. 8, 1998
5657785 Method of replacing valve packing Aug. 19, 1997
5577742 Metallic stem seal with inclined channel and integral support member Nov. 26, 1996
5553869 Bonded valve stem seal with retainer tangs Sep. 10, 1996
5237971 Valve stem seal assembly Aug. 24, 1993
5110142 Valve stem oil seal May. 5, 1992
5072950 Valve stem assembly Dec. 17, 1991
5066029 Annular sealing apparatus Nov. 19, 1991
5062397 Valve stem seal Nov. 5, 1991
5058541 Valve operating system of internal combustion engine Oct. 22, 1991
5050893 Valve stem oil shield Sep. 24, 1991
4993379 Sliding stem seal, particularly for valve stems Feb. 19, 1991
4947811 Floating valve stem seal Aug. 14, 1990
4928644 Lubrication control May. 29, 1990
4915069 Metering valve stem seal Apr. 10, 1990
4834037 Unitary molded plastic valve seal May. 30, 1989
4826180 Valve stem sealing assembly May. 2, 1989
4822061 Valve seal retainer Apr. 18, 1989
4811703 Valve stem seal Mar. 14, 1989
4811960 Fixed valve stem oil seal Mar. 14, 1989

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