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
Optoelectronic component and method for producing an optoelectronic component
Signal generator
Backlight assembly, method for driving backlight assembly, and liquid crystal display having the same
Variety corn line NPAA2720
Magnetoresistive element and manufacturing method of the same
Image forming unit having agitating portion and image forming apparatus
Pyridyldiamido transition metal complexes, production and use thereof
  Randomly Featured Patents
Network interface card accessible during low power consumption mode
Catalyst and process for preparing maleic anhydride from C.sub.4 hydrocarbons
Snow rail mounting bracket
Surface texture measurement apparatus and roundness measuring apparatus
Apparatus and method for heat cleaning semiconductor material
Process for formation of capacitor for DRAM cell
Polyol combination
Device and method for detecting and displaying charge capacity of a battery
Method for manufacture of field emission array
Optical fine processing apparatus