Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/329
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > With provision of alternate wear parts
Description: Devices having a part or parts made in attached duplicate form or of extensive area movably mounted in such a manner the worn or injured part may be replaced by a duplicate part or another unworn surface to restore the device to its former condition.

Sub-classes under this class:

Class Number Class Name Patents
137/329.01 Valve heads and/or seats 20

Patents under this class:

Patent Number Title Of Patent Date Issued
6446664 Erosion resistant wear sleeve for high pressure valves Sep. 10, 2002
4453698 Stuffing box with O-ring detent for control mechanism of emergency valve Jun. 12, 1984
4354519 Non-drip valve apparatus Oct. 19, 1982
3970283 Pouring of molten metals Jul. 20, 1976
3955592 Check valve May. 11, 1976

  Recently Added Patents
Herbal composition for the treatment of wound healing, a regenerative medicine
Candle holder
Method and system for phase-sensitive magnetic resonance imaging
Authenticated secret sharing
Pattern identification apparatus, control method and program thereof
Curable inks comprising surfactant-coated magnetic nanoparticles
Image processing apparatus and image processing method
  Randomly Featured Patents
Plasma display panel having delta pixel arrangement
Welding filler wire feed apparatus
Shower shelf
Method and apparatus for producing molded product
Method for the production of sialylated oligosaccharides
Neutral blue zirconium-vanadium pigments
Skin permeation enhancer compositions using glycerol monolinoleate
Method and apparatus for automatic egg mass counting
Fixing device including a heating unit and a pressurizing unit that includes a rotatable endless member and image forming apparatus having the same