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
Information processing apparatus and storage medium for storing information processing program
Tricyclic inhibitors of kinases
Parameter decoding apparatus and parameter decoding method
Controlling generation of debug exceptions
Testing apparatus and testing method for telephone apparatus
Image forming apparatus having a primary transfer unit, a secondary transfer unit, and a direct transfer unit
Reference circuit with curvature correction using additional complementary to temperature component
  Randomly Featured Patents
Semiconductor materials with skutterudite type crystal lattice structures optimized for selected thermoelectric properties and methods of preparation
Shoe heel protector
Remote control selector valve
Fixed lingual orthodontic appliance
Forage harvester with a conditioning unit movable between an operating position and a non-operating position
Greeting card
Magnetic tape head including a transducer cluster and a block fixed to a u-shaped frame having a ridge
Process control system with improved system security features
Lithium secondary battery
Umbrella shaft having seven tubes