Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/329.4
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > Removable valve with normally disabled supplemental check valve > Check valve disabled by normally movable main valve part > Spring bias
Description: Devices having a spring bias to close the check valve or to supplement the bias of the fluid.










Patents under this class:

Patent Number Title Of Patent Date Issued
7648175 Medical gas outlet with support bracket Jan. 19, 2010
7077157 Spring-loaded pressure relief valve, particularly for containers of pressurized fluids Jul. 18, 2006
7040341 Gas plug connector May. 9, 2006
6607105 Stopper for wine or champagne preservation and dispensing apparatus Aug. 19, 2003
6347643 Gas outlet barrel retention apparatus Feb. 19, 2002
6230737 Cylinder valve assembly May. 15, 2001
6189560 Connector assembly for medical gas service outlet Feb. 20, 2001
6116265 Removable frost proof hydrant Sep. 12, 2000
5992441 Fuel vapor vent valve Nov. 30, 1999
5975486 Valve combination Nov. 2, 1999
5538690 Air quality indicator system for breathing air supplies Jul. 23, 1996
5538690 Air quality indicator system for breathing air supplies Jul. 23, 1996
4848661 Sprinkler head shutoff valve Jul. 18, 1989
4706847 Dispenser for wine Nov. 17, 1987
4437487 Lightning protected check-type drain valve Mar. 20, 1984
4344455 Coupling assembly Aug. 17, 1982
4120314 Remote actuated flush valve Oct. 17, 1978
4067354 Gas pressure regulator having high and low pressure shutoff means Jan. 10, 1978
3930517 Safety valve Jan. 6, 1976











 
 
  Recently Added Patents
Sunglasses
Imaging lens
Touch-sensitive device and communication device
Integrated circuit packaging system with heat slug and method of manufacture thereof
Transporting business intelligence objects between business intelligence systems
Data distribution apparatus, data distribution method, and distribution control program
Vehicle seating system and method for reducing fatigue with changing actuator movement
  Randomly Featured Patents
Thin Fe-Ni alloy sheet for shadow mask
X-ray goniometer
Fastening mechanism for connecting a sports attachment to a sports shaft
Video data signal including a code string having a plurality of components which are arranged in a descending order of importance
Vehicle HVAC control panel receptacles and HVAC control panel assemblies
Recording apparatus and method with comparison of calculated and actual ink use
Chrysanthemum plant named `Yosnowmass`
Valve seat for use with pumps for handling abrasive fluids
Playground structure
Compositions and methods for the treatment of skin