Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 277/482
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 > Circumferentially spaced separately seated radially acting bias feature
Description: Particular piston ring expander wherein the piston ring expander has peripherally spread apart, individually positioned, resilient members acting in a direction perpendicular to the piston"s axis of reciprocation.

Sub-classes under this class:

Class Number Class Name Patents
277/483 Disposed in socket or about pin 5

Patents under this class:

Patent Number Title Of Patent Date Issued
6575472 System for sealing relatively movable elements Jun. 10, 2003
6502826 Hydraulic cylinder piston seal Jan. 7, 2003
6340160 System for sealing relatively movable elements Jan. 22, 2002
6199868 Piston assembly with piston ring support and sealing member Mar. 13, 2001
5039060 Control valve vibration damper/isolator Aug. 13, 1991
4079949 Integral spring piston ring Mar. 21, 1978

  Recently Added Patents
Wafer-level chip scale package
Bus controller for handling split transactions
Bessel beam plane illumination microscope
Therapeutic human anti-IL-1R1 monoclonal antibody
Method of motion correction in optical coherence tomography imaging
Mobile computing terminal
Semiconductor memory device
  Randomly Featured Patents
Power generating apparatus
Pyrazolone substituted copolyarylene sulfide
Biodegradable oxidized cellulose esters
Process for producing copolymerized resins
Apparatus for weighing a pallet with a load thereon for use with a vehicle having tines or the like
Rubber composition lowered in heat build-up
Process for time-sequenced multiplexing of data on a transmission medium and devices to implement this process
1H-1,2,3-triazol-5-ylthio ester of N-carbobenzyloxy-p-hydroxyphenylglycine
Alkyl derivatives of C-076 compounds
Dentifrice composition containing stabilized sodium percarbonate