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Class Information
Number: 277/435
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 > Having installation, removal assembly, disassembly, or repair feature
Description: Piston ring, expander, or seat including means to aid in mounting, extricating, construction, dismantling, or restoration of the seal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7431305 |
Oil scraper ring ring groove arrangement for pistons of internal combustion engines |
Oct. 7, 2008 |
| 7354045 |
Oil ring |
Apr. 8, 2008 |
| 7234704 |
Wiping and/or sealing element as well as process for sealing a piston and clamping and/or support element |
Jun. 26, 2007 |
| 7228787 |
Method for joining the functional parts of hydraulic or pneumatic working devices, and joining connection |
Jun. 12, 2007 |
| 7044472 |
Combined steel oil control ring |
May. 16, 2006 |
| 6959930 |
Combination oil scrapper ring/gas seal assembly |
Nov. 1, 2005 |
| 6860485 |
Piston ring |
Mar. 1, 2005 |
| 6811156 |
Seal for hydraulically sealing a piston rod |
Nov. 2, 2004 |
| 6719298 |
Bonded piston seal for power steering |
Apr. 13, 2004 |
| 6705616 |
Piston ring device in internal combustion engine |
Mar. 16, 2004 |
| 6651987 |
Seal for preventing leakage of fluid from opening formed in side wall of work tank of wire cut electric discharge machine |
Nov. 25, 2003 |
| 6439203 |
Seal arrangement |
Aug. 27, 2002 |
| 6428014 |
Piston sealing ring assembly |
Aug. 6, 2002 |
| 6419234 |
Oil sealing ring |
Jul. 16, 2002 |
| 6398225 |
Seal for a rotary valve for high temperature and high pressure fluids |
Jun. 4, 2002 |
| 6382940 |
High pressure plunger pump housing and packing |
May. 7, 2002 |
| 6378875 |
Sealing ring |
Apr. 30, 2002 |
| 6378872 |
Seal assembly |
Apr. 30, 2002 |
| 6347575 |
Low emission piston and ring for internal combustion engine |
Feb. 19, 2002 |
| 6322080 |
Sealing arrangement |
Nov. 27, 2001 |
| 6286837 |
Compressor piston rod packing ring set |
Sep. 11, 2001 |
| 6283478 |
Piston ring structural body and method of mounting the piston ring structural body |
Sep. 4, 2001 |
| 6257590 |
Sealing structure and method of mounting piston ring structural body for use in the sealing stucture |
Jul. 10, 2001 |
| 6254103 |
Seal |
Jul. 3, 2001 |
| 6217030 |
Seal assembly |
Apr. 17, 2001 |
| 6193236 |
Packing seal having at least two axially adjacent segment rings |
Feb. 27, 2001 |
| 6105970 |
Seal arrangement |
Aug. 22, 2000 |
| 6073935 |
Leaktight seal device for lower arm of a spark erosion machine or electrical discharge machining (EDM) device |
Jun. 13, 2000 |
| 6039321 |
Piston ring device for use in a combustion engine of a vehicle |
Mar. 21, 2000 |
| 5988649 |
Fractured seal ring |
Nov. 23, 1999 |
| 5934175 |
Cylindrical working member and system employing same |
Aug. 10, 1999 |
| 5921166 |
Cylinder apparatus |
Jul. 13, 1999 |
| 5921553 |
Sealing ring assembly for a single sealing ring piston |
Jul. 13, 1999 |
| 5901963 |
Gas nitrided taper faced keystone piston ring incorporating a sealing land and orientation groove |
May. 11, 1999 |
| 5667040 |
Method for changing a packing cup on a brake actuation-slack adjuster |
Sep. 16, 1997 |
| 4867294 |
Accumulator piston for automotive transmission |
Sep. 19, 1989 |
| 4256318 |
Piston ring |
Mar. 17, 1981 |
| 4220374 |
Method for locating annular seals and article produced thereby |
Sep. 2, 1980 |
| 4211345 |
Apparatus for the feeding (metering) of liquid synthetic-resin components |
Jul. 8, 1980 |
| 4204688 |
Oil control ring spacer-expander with improved slip latch |
May. 27, 1980 |
| 4111437 |
Oil control ring spacer-expander with improved slip latch |
Sep. 5, 1978 |
| 3934886 |
Corrugated radial spacer expander for compound oil scraping rings |
Jan. 27, 1976 |
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