Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 277/476
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 ring expander > Annular expander nested in annular groove of the piston ring > Inclined or beveled groove contacting expander having dissimilar contour
Description: Particular annular piston ring expander provides an annular surface having a profile other than a slanting or sloping surface of the annular recess of the piston ring.










Patents under this class:

Patent Number Title Of Patent Date Issued
6173960 Rod seal apparatus for cylinder assembly Jan. 16, 2001
6116204 Oil scraper piston ring Sep. 12, 2000
5964467 Oil control ring of two piece type for internal combustion engine Oct. 12, 1999
5295696 Combined oil ring Mar. 22, 1994
5028055 Substantially zero leakage path sealing assembly with additional line to line ring Jul. 2, 1991
4917390 Hydraulic seal assembly Apr. 17, 1990
4522412 Oil ring with coil expander Jun. 11, 1985
4045036 Piston oil control ring Aug. 30, 1977











 
 
  Recently Added Patents
Method and system for video parameter analysis and transmission
Architecture, system and method for testing resistive type memory
Process of preparing functionalized polymers via enzymatic catalysis
Web-based royalty system and user interface
Changing sound alerts during a messaging session
Lens module and method for manufacturing thereof
Bicycle shifting method
  Randomly Featured Patents
Cryptographic techniques for a communications network
Unit-to-unit register adjusting apparatus of multicolor printing machine
Mobile agricultural spray machine
Hydrolyzed reaction product of a polyepoxide with a phenolic compound having a group hydrolyzable to a carboxyl and curing agent therefor
Semi-conductor substrate with conducting pattern
Method for enhancing recombinant antibody production
Printer
Boot binding coupling for snow boards
Apparatus for scraping solid materials from a conveyor surface
Device for stabilizing the pelvis of a patient lying on his side