Resources Contact Us Home
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
Remotely provisioned wireless proxy
Coating composition, and a process for producing the same
System for highlighting targets on head up displays with near focus plane
Pre-primed roofing membrane
Fusing apparatus and image forming apparatus provided with the same, and heating apparatus
Transferring a document
Ice data collection system
  Randomly Featured Patents
Method and apparatus for video conferencing in mobile terminal
Apparatus to move negatives
Regenerative burner
Developer remaining amount detecting apparatus and developer remaining amount detecting method
Peel back method and apparatus for deployably concealing an air bag behind an instrument panel
Serviceable absorbent for gas spectrometer interior
Compact ejector unit
Test device for electric circuits on boards
Reciprocating jig adapter for grinding mills
Masking an engine block during coating application