Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 277/492
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 > Sectional piston ring structure > C, l, t, u, v, or z cross-sectional profile > Three or more sections
Description: Sectional piston ring wherein the sectional piston ring has at least three component rings.

Patents under this class:

Patent Number Title Of Patent Date Issued
6419234 Oil sealing ring Jul. 16, 2002
5921553 Sealing ring assembly for a single sealing ring piston Jul. 13, 1999
4090719 Packing assembly May. 23, 1978

  Recently Added Patents
Herbicide composition having improved effectiveness, method of preparation and use
Cancer treatment kits comprising therapeutic antibody conjugates that bind to aminophospholipids
System and method for providing definitions
Disk drive increasing capacity by adjusting a servo gate during write operations
ZNF217 a new prognostic and predictive biomarker of recurrent invasive and metastatic phenotypes in breast cancer
Methods and apparatus for deactivating internal constraint curves when inflating an N-sided patch
Method of estimating remaining constant current/constant voltage charging time
  Randomly Featured Patents
Method for forming aqueous dispersions of ketone resins
Method for the production of a component, and component
Bolt seat
Low profile gastrostomy catheter
Diaper changing station having a collapsible frame
Data carrying assembly and method and apparatus for forming same
Fuel injection apparatus for a two-stroke internal combustion engine
Liquid ejection apparatus and liquid agitation method
Non-aggressive anchor washer
Cookware handle