Resources Contact Us Home
Browse by Category: Main > Tools & Hardware
Class Information
Number: 451/115
Name: Abrading > Machine > By use of plural work holders, without tool > Of valve and seat
Description: Abrading machine in which the abrading is accomplished by mutual moving contact between plural workpieces intended to be used together to contain and adjustably restrict the flow of fluid.

Sub-classes under this class:

Class Number Class Name Patents
451/116 Plug cock 0
451/117 Poppet valve 3
451/118 Slide valve 0

Patents under this class:

Patent Number Title Of Patent Date Issued
8585464 Lapping system and method for lapping a valve face Nov. 19, 2013
7001255 Thermostat gasket cleaner Feb. 21, 2006
6921322 Apparatus and methods for refinishing a surface in-situ Jul. 26, 2005
6267653 Device for grinding an end face, especially an annular surface at the edge of a workpiece bore Jul. 31, 2001
5934976 Method for grinding a taper surface and grinding apparatus using the same Aug. 10, 1999
5890659 Valve closing body and process and device for producing sealing seats on valve closing bodies Apr. 6, 1999
5634842 Apparatus for the precision grinding of conical seats for cylindrical nozzle workpieces Jun. 3, 1997
5591068 Precision non-contact polishing tool Jan. 7, 1997
5315792 Method for producing sealing faces on valves May. 31, 1994
5303509 Apparatus for producing sealing faces on valves Apr. 19, 1994

  Recently Added Patents
LED package chip classification system
Calendar integration methods and systems for presentation of events having combined activity and location information
Mobile communication device monitoring systems and methods
Active pellet without chemical additives
Medical injector
Simultaneous enhancement of transmission loss and absorption coefficient using activated cavities
Generating a network map
  Randomly Featured Patents
Pharmaceutical compositions based on Diclofenae
Chip packaging compositions, packages and systems made therewith, and methods of making same
Document platen driving device
Avian sex identification oligonucleotides
Crystal section shape measuring method
Fiber optic stub assembly having a water resistant barrier and method for manufacturing the same
Low power frequency modulated hybrid fiber optic data acquisition system
Double Impatiens plant named `Boddblapp`
Optical disk drive including non-volatile memory and method of operating the same
Method and apparatus for windmill starts in gas turbine engines