Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/246.12
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface > Liquid supplied at valve interface > Line pressure feed
Description: Valves wherein line pressure is used to feed the sealing liquid.










Patents under this class:

Patent Number Title Of Patent Date Issued
7857004 Automated condensate drain line cleaning system, method, and kit Dec. 28, 2010
5901737 Rotary valve having a fluid bearing May. 11, 1999
4971098 Valve and improved seat seal therefor Nov. 20, 1990
4702269 By-pass valve Oct. 27, 1987
4450854 Lubricated split plug valve May. 29, 1984
4398559 Valve member and assembly with inlet and outlet pressure relief grooves Aug. 16, 1983
4393893 Lubricated split plug valve Jul. 19, 1983
4372338 High pressure valve assembly Feb. 8, 1983
4363465 Extreme temperature, high pressure balanced, rising stem gate valve with super preloaded, stacked, solid lubricated, metal-to-metal seal Dec. 14, 1982
4350179 Valve assembly with relief groove Sep. 21, 1982
4262689 Respirator valve Apr. 21, 1981
4197924 Ball valve lubricating apparatus Apr. 15, 1980
4029294 High pressure valve Jun. 14, 1977











 
 
  Recently Added Patents
Synchronous rectifier network unit circuit and method
Adaptive switch mode LED system
Methods, devices and software applications for facilitating a development of a computer program
Controlling a resource demand system
System for encrypting and decrypting a plaintext message with authentication
Memory cell and memory cell array using the same
Support for a parameterized query/view in complex event processing
  Randomly Featured Patents
Apparatus and method for driving capacitive load, and processing program embodied in a recording medium for driving capacitive load
Test mode for parallel load of address dependent data to enable loading of desired data backgrounds
Developing device including means for recovering carrier particles
Stepping exerciser having rotatable foot pedals
Substituted benzimidazoles and their use for inducing apoptosis
Boiler feed water pump control systems
Method and apparatus for creating and animating characters having associated behavior
Wave motion absorbing offloading system comprising a slender mooring buoy
Method for preventing electrostatic discharge damage to an insulating article
Device for the automatic connection of a vehicle to the cable or to each of the two cables of a continuously moving cableway