Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/460
Name: Fluid handling > Line condition change responsive valves > Safety cut-off requiring reset > Responsive to change in rate of flow > Excessive flow cut-off
Description: Apparatus in which the valve closes in response to an increased velocity beyond a predetermined value.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
5638847 Temperature sensitive water supply shut-off system Jun. 17, 1997
5577532 Valve actuator Nov. 26, 1996
5503175 Water safety system Apr. 2, 1996
5494068 Gas leak sensor shutoff valve and method for installation Feb. 27, 1996
5445184 Magnetic valve reset mechanism Aug. 29, 1995
5381822 Relief valve with hydraulic fuse Jan. 17, 1995
5295534 Pressure monitoring of a producing well Mar. 22, 1994
5287884 Water flow monitoring system for determining the presence of leaks and stopping flow in plumbing pipes Feb. 22, 1994
5279326 Safety valve Jan. 18, 1994
5265641 Resettable automatic shut-off valve Nov. 30, 1993
5251653 Control system for automatic fluid shut-off Oct. 12, 1993
5241984 Flow valve Sep. 7, 1993
5222518 Air flow control valve Jun. 29, 1993
5217043 Control valve Jun. 8, 1993
5215113 Precision safety shut-off valve Jun. 1, 1993
5215178 Safety valve for discharge chutes on cement mixer Jun. 1, 1993
5203371 Gas regulator with several stage adjustment Apr. 20, 1993
5183115 Safety valve Feb. 2, 1993
5158107 Gas regulator with adjustable safety device Oct. 27, 1992
5109884 Safety valve arrangement May. 5, 1992
5103860 Gas cylinder safety valve Apr. 14, 1992
5076321 Flow sensitive fluid shutoff safety device Dec. 31, 1991
5038820 Automatic fluid shutoff system Aug. 13, 1991
4976281 Safety valve assembly for fluid system Dec. 11, 1990
4974630 Gas pressure regulator having side-drafted throttling means Dec. 4, 1990
4974629 Gas pressure regulator for saving resetting operation Dec. 4, 1990
4964421 Water saver valve Oct. 23, 1990
4960146 Earthquake safety valve Oct. 2, 1990
4928728 Gas shutoff apparatus May. 29, 1990
4921008 Automatic fluid flow shutoff device May. 1, 1990
4911199 Pilot operated safety valve Mar. 27, 1990
4889150 Pressure control for earthquake sensitive shut-off valve Dec. 26, 1989
4883081 Flow and seismic sensitive safety valve for gaseous fluids Nov. 28, 1989
4881948 Gas shutoff apparatus Nov. 21, 1989
4880030 Safety flow control fluid shutoff device Nov. 14, 1989
4844113 Fluid flow safety valve Jul. 4, 1989
4836247 Regulator means for automatically shutting the gas pipeline passage off during pressure reducing failure Jun. 6, 1989
4830046 Excess flow control valve May. 16, 1989
4809740 Excess flow limiter Mar. 7, 1989
4804163 Key button type of water tap Feb. 14, 1989
4793379 Supply cylinder shut-off and flow control valve Dec. 27, 1988
4792113 Fluid flow control valve Dec. 20, 1988
4787416 Regulator means for automatically shutting pipeline passage off during pressure reducing failure Nov. 29, 1988
4785840 Method of and apparatus for controlling material flow Nov. 22, 1988
4736763 Automatic device for the detection and shutoff of unwanted liquid flow in pipes Apr. 12, 1988
4732190 Shut-off valve and method for using same Mar. 22, 1988
4708163 Safety valve Nov. 24, 1987
4705060 Detecting leaks in plumbing systems Nov. 10, 1987
4700742 Automatic shut-off device Oct. 20, 1987
4690170 Safety gas valve with timer Sep. 1, 1987

1 2 3 4










 
 
  Recently Added Patents
Antibodies to OX-2/CD200 and uses thereof
Cooking oven with energy saving mode and method
Aware manufacturing of integrated circuits
Container
Devices, systems, and methods for tactile feedback and input
System and method for generating profile morphing using cephalometric tracing data
Spatula
  Randomly Featured Patents
Ultrasonic harmonic imaging system and method using waveform pre-distortion
Power consumption management in a MIMO transceiver and method for use therewith
Identification of the domain of Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) that mediates adhesion to chondroitin sulfate A
Fluted crown cap
Semiconductor package
Cartridge transferring robot for library apparatus, and library apparatus
Steam seal for disc filter
Integrated method for synthesis propylene oxide
Mobile terminal and display controlling method thereof
Electromagnetic-shielding transparent window member and method for producing the same