Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 277/498
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 > Split single piece piston ring having other than opposed asymmetrical mirrored ends
Description: Piston ring wherein the piston ring is an annulus including only a gap providing opposed ends that are of substantially dissimilar shape even when considering opposite orientation.










Sub-classes under this class:

Class Number Class Name Patents
277/499 Arcuate or beveled mating surfaces 17


Patents under this class:

Patent Number Title Of Patent Date Issued
7758052 Seal assembly Jul. 20, 2010
7510195 High temperature and high pressure compressor piston ring Mar. 31, 2009
7121552 Piston ring Oct. 17, 2006
6997460 Piston ring for piston engines Feb. 14, 2006
6726218 Compression piston ring for use in internal combustion engine Apr. 27, 2004
6631908 Compression piston ring Oct. 14, 2003
6176492 Piston ring for shock absorber Jan. 23, 2001
5988649 Fractured seal ring Nov. 23, 1999
5934685 Step lock piston ring insert Aug. 10, 1999
5618048 Piston ring seal having angled ends Apr. 8, 1997
4251083 Piston ring with tongue and groove joint Feb. 17, 1981











 
 
  Recently Added Patents
Turbulence sensor and blade condition sensor system
Apparatus and method of managing radio bearer in wireless communication system
Method of making an array of nucleic acid colonies
MOS resistor apparatus and methods
Gas sensor with a porous layer that detectably affects a surface lattice resonant condition of a nanoparticle array
Message transfer apparatus, output method, and computer program product
Automatic fixup of network configuration on system image move
  Randomly Featured Patents
Portable desk
Simplifying lexicon creation in hybrid duplicate detection and inductive classifier systems
Apparatus and method for measuring forces and moments acting on models tested in aerodynamic wind tunnels
Machine tool
Drug delivery catheter with tip alignment
Dynamic self-monitoring air operating system
Multi purpose exercise poles with many optional attachments
Pd/Ni-WO3 anodic double layer gasochromic device
Digital readout diet scale
Electrical block separating joints for railway signaling systems