Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
Organic light-emitting display and method of manufacturing the same
Process for production of nickel oxide-stabilized zirconia composite oxide
Apparatus and method for multiplying frequency of a clock signal
Plants and seeds of hybrid corn variety CH717591
Semiconductor device having a multilevel interconnect structure and method for fabricating the same
Zoom lens
  Randomly Featured Patents
Pinball machine
Cross country skiing simulating exerciser
Methacrylate (co)polymers containing carbazolyl side groups and electrophotographic recording elements containing the said (co)polymers
Radially expanding interbody spinal fusion implants, instrumentation, and methods of insertion
Memory device
Locking arm having ball joints for use in an organ manipulator apparatus
Chandelier
Bearing member and method for manufacturing the same and dynamic pressure bearing device
Methods of calibrating a device under test to communicate wirelessly
Process for fabricating non-volatile storage