Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/329.04
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > With provision of alternate wear parts > Valve heads and/or seats > Opposite duplicate surfaces of unitary structure > Homogeneous material > Valve heads
Description: Devices relating to valve heads.










Patents under this class:

Patent Number Title Of Patent Date Issued
8496224 Tunable valve assembly Jul. 30, 2013
6886586 Symmetrical valve configuration May. 3, 2005
6871668 Variable force actuator with a double needle poppet assembly Mar. 29, 2005
4967786 Armature for a solenoid operated valve Nov. 6, 1990
4936337 Armature for a solenoid operated valve Jun. 26, 1990
4872473 Dual float valve control for regular and douglas type valve Oct. 10, 1989
4716924 Valve assembly for reciprocating plunger pump Jan. 5, 1988
4641682 Valve with rotary valve head Feb. 10, 1987
4545399 Valve Oct. 8, 1985
4520842 High pressure valve for positive pressure pumps including means for installing and removing the valve Jun. 4, 1985
4483363 Compressor valve Nov. 20, 1984
4408629 Valve modification for fluid pump valves Oct. 11, 1983
4337920 Valve Jul. 6, 1982
4257442 Choke for controlling the flow of drilling mud Mar. 24, 1981
4190073 Choke for controlling the flow of drilling mud Feb. 26, 1980











 
 
  Recently Added Patents
Integrated testing circuitry for high-frequency receiver integrated circuits
Vehicle and communication monitoring
Focus adjustment unit and optical scanning microscope
Herbal composition for the treatment of wound healing, a regenerative medicine
Reception method and reception apparatus
Secure soft SIM credential transfer
Hemostatic devices and methods of making same
  Randomly Featured Patents
Nozzle unit and method for excavating a hole in an object
Method for installation of building tiles without adhesive materials and standardized tiles for implementing the same
Integrated spectral flame monitor
Method of making a multi-channel time based servo tape media
Mattress constructions
High-accuracy optical torquemeter
Semiconductor integrated circuit device with voltage interface circuit
Apparatus and method of decorating articles using a transport screw with a varying screw flight pitch
Air vehicle having driven wheels and ducted fans
Recombinant thrombin receptor and related pharmaceuticals