Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/243.6
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 > With independent grinding actuator
Description: Devices which are provided with means in addition to and independent of the normal valve actuator for imparting the grinding motion to the valve.

Sub-classes under this class:

Class Number Class Name Patents
137/243.7 Separable 1

Patents under this class:

Patent Number Title Of Patent Date Issued
6446660 Valve assembly with multiple mode actuators Sep. 10, 2002
6273121 Valve seat self cleaning device for alumina production plants Aug. 14, 2001
6119716 Valve Sep. 19, 2000
5992446 Stopper system for vessel orifice Nov. 30, 1999
4465091 Improved self-grinding valve Aug. 14, 1984
4460009 Valve stem actuator Jul. 17, 1984
4346728 Automated dual mode valve actuator Aug. 31, 1982

  Recently Added Patents
Method and apparatus for wireless communication in a mesh network with central control of communication relationships
Methods of diagnosing a plasmodium infection
Pixel structure of a solid-state image sensor employing a charge sorting method
Method of operating an electromechanical converter, a controller and a computer program product
Managing device functionality during predetermined conditions
Method and system for security authentication of radio frequency identification
Method for distributing advertisements to client devices using an obscured ad monitoring function
  Randomly Featured Patents
Protective barrier for piping and cabling
Arc discharge lamp with elongated outer envelope orthogonal to lamp base
Interface device for electronically integrating global financial services
Automotive wheel
Calibrated custom instrument gauge module and means for assembly
Portable information apparatus for sensing battery voltage drop
Base for a telephone set
Apparatus and method for mounting and operating multile turbochargers in parallel
Method for nucleotide sequence amplification
Tool for the transfer and production of proteins using the pseudomonas type III secretion system