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Class Information
Number: 277/455
Name: Seal for a joint or juncture > Seal between relatively movable parts (i.e., dynamic seal) > Piston ring or piston ring expander or seat therefor > Particular piston seat > Arcuate wall
Description: Particular piston seat wherein the groove has a curved wall.

Patents under this class:

Patent Number Title Of Patent Date Issued
6712362 Primary seals for master-slave cylinder systems Mar. 30, 2004
6682078 Ring groove for oil ring with coil expander of piston Jan. 27, 2004
6547251 Ring groove for oil ring with coil expander of piston Apr. 15, 2003
5695199 Piston sealing assembly Dec. 9, 1997
5303683 Piston with a profiled ring groove Apr. 19, 1994
4676143 Piston seal device for reciprocating compressor Jun. 30, 1987
4582330 Seal with cleft seating surface Apr. 15, 1986
4362304 Packing arrangement for a floating piston Dec. 7, 1982
4350082 Pump piston having ring lubrication means Sep. 21, 1982
4350352 Piston ring and groove assemblies Sep. 21, 1982

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