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Class Information
Number: 137/78.4
Name: Fluid handling > Ambient condition change responsive > Burner gas cutoff
Description: Apparatus in which flow of flammable gas to a burner is stopped in response to a sensed environmental extinguishing action to the flame of the burner.










Patents under this class:

Patent Number Title Of Patent Date Issued
8567757 Wireless fluid shut-off valve Oct. 29, 2013
8479759 Device for controlling the supply of a combustible gas to a burner apparatus Jul. 9, 2013
8282134 Method and apparatus for assembling pressure reducing fuel regulator Oct. 9, 2012
8251085 Leak prevention method for gas lines Aug. 28, 2012
7817048 Fire extinguishing systems and methods Oct. 19, 2010
7199721 Alarm shut off system Apr. 3, 2007
6543743 Gas control valve Apr. 8, 2003
6269829 Integrated gas meter Aug. 7, 2001
6199573 Gas flow arrestor Mar. 13, 2001
6170509 Safety valve system Jan. 9, 2001
6000390 Control mechanism with gas safety valve for a gas range Dec. 14, 1999
5908980 Integrated safety control system for user's gas facility and gas leakage recognizing method Jun. 1, 1999
5730170 Emergency gas or fuel shut-off device Mar. 24, 1998
5722448 Gas line automatic cut off valve Mar. 3, 1998
5503549 Ultra low power valve for the control of gas flow Apr. 2, 1996
5468142 Gas light control apparatus Nov. 21, 1995
5419358 Gas monitoring system for a boiler May. 30, 1995
4974624 Gas shut-off device Dec. 4, 1990
4787410 Gas shut-off system Nov. 29, 1988
4549717 Heat responsive valve Oct. 29, 1985
4349042 Fluid shut-off device Sep. 14, 1982
4263928 Fuel security device Apr. 28, 1981
4262687 Electromagnetic valve security device for fuel supplies Apr. 21, 1981
4223692 Recreational vehicle safety system Sep. 23, 1980
4207912 Emergency shut-off valve Jun. 17, 1980
3955186 Character image generation apparatus and CRT phototypesetting system May. 4, 1976











 
 
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