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
Push mechanism for efficiently sending aggregated data items to client
Determination and presentation of package pricing offers in response to customer interest in a product
Techniques to manage communications resources for a multimedia conference event
Clock distribution circuit
Methods for detecting DNA-binding proteins
Soybean cultivar BY0811143
Perception-based artifact quantification for volume rendering
  Randomly Featured Patents
Production of 3,3-dimethyl-2-oxo-butyric acid salt
Recording apparatus and recording method
Optimizing reactions in fuel cells and electrochemical reactions
Control valve for variable displacement compressor
Apparatus and method for performance and fault data analysis
Paint feeding apparatus in combination with a fountain type paint roller
Process and device for accelerating the drying of cement mixes
Method for detecting phosphorus segregates in steel
Hair retaining device
Heavy duty pneumatic low-sectional radial tire