Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/246.21
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface > Liquid supplied at valve interface > Spring biased piston feed
Description: Valves wherein the lubricant feed means is a spring biased piston.










Patents under this class:

Patent Number Title Of Patent Date Issued
4671915 Method for making a glass precision valve Jun. 9, 1987











 
 
  Recently Added Patents
Semiconductor device, semiconductor device design method, semiconductor design apparatus, and program
Image forming apparatus
Wireless updating of hearing devices
Aspect ratio enhancement
Motilin-like peptide compound having transmucosal absorbability imparted thereto
Managing delivery of application server content
Optical module for a microlithography objective including holding and supporting devices
  Randomly Featured Patents
Method of incrementally adjusting the center frequency of a microstrip-line printed filter by manuevering dielectric layers
Auxiliary control of aircraft landing gear movement
Electronic flash apparatus
Semiconductor device and method of fabricating semiconductor device with high CMP uniformity and resistance to loss that occurs in dicing
Method for fixation of biological tissue
Liquid crystal display, array substrate and mother glass thereof
Semiconductor device and method for manufacturing same
Method of producing primary amines in high yields
Compositions isolated from plant cells and their use in the modification
Touch-controlled liquid crystal display and touch panel thereof