Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/243.2
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface > Cleaning or steam sterilizing > Mechanical cleaning > Valve grinding motion of valve on seat > Spring pressed
Description: Devices provided with a spring which permits regrinding of the valve head on its seat.

Patents under this class:

Patent Number Title Of Patent Date Issued
6957659 Sliding disk valve for pneumatic conveyance of abrasive material Oct. 25, 2005
6845783 Sliding disk valve for pneumatic conveyance of abrasive material Jan. 25, 2005
4627461 Self cleaning valve Dec. 9, 1986
4338961 Valve for handling hot caustic alumina solution with provision for grinding Jul. 13, 1982
4177825 Self-grinding valve mechanism Dec. 11, 1979

  Recently Added Patents
Human renal disease marker substance
Profiled rail for advertising/display units
Hand sign
Power device and method of packaging same
Techniques for accessing a parallel database system via external programs using vertical and/or horizontal partitioning
Far field telemetry operations between an external device and an implantable medical device during recharge of the implantable medical device via a proximity coupling
Flat panel display device and method of fabricating the same
  Randomly Featured Patents
Method of tracheal intubation
Method and system for displaying textual information
Use of acid-stable proteases in animal feed
Two bit non-volatile electrically erasable and programmable semiconductor memory cell utilizing asymmetrical charge trapping
Multi-media document reproducing system, multi-media document editing system, and multi-media document editing/reproducing system
Motion conversion system
Pallet cage hinge
Biometric identification system
Apparatus for printing labels and a self-releasing print roller therefor