Pressure responsive safety valve for gas burner

Details Pressure responsive safety valve for gas burner Pressure responsive safety valve for gas burner

1978-02-23

1982-10-26

Myhre, Charles J.

Combustion

Timer, programmer, retarder or condition responsive control

By combustion or combustion zone sensor

431 53, 431 19, G05D 2312

Patent

active

043559700

ABSTRACT:
A safety device for a gas burner comprises a first ignition nozzle 31 in a pilot burner 3, an inflammable gas guide tube 32 facing the first ignition nozzle, a second ignition nozzle 33 at the end of the guide tube oriented toward a main burner 2, a pressure sensing tube 6 coupled between the guide tube portion near the first ignition nozzle and one diaphragm chamber of a differential pressure sensing device 7, and an automatic valve 4 actuated by the pressure sensing device to close a main gas pipe 1. If the flame at the first ignition nozzle is extinguished the pressure near the beginning of the guide tube increases sharply, which actuates the pressure sensing device 7 to close the valve 4 and terminate combustion.

REFERENCES:
patent: 2538222 (1951-01-01), Wilson
patent: 2597787 (1952-05-01), Garner
patent: 2598361 (1952-05-01), Dach
patent: 2956132 (1960-10-01), Hilgert
patent: 2988140 (1961-06-01), Strobel
patent: 3122196 (1964-02-01), Schuss
patent: 3123027 (1964-03-01), Livingston
patent: 3156454 (1964-11-01), Flynn
patent: 3393694 (1968-07-01), Baker
patent: 3422841 (1969-01-01), Farrer
patent: 3479927 (1969-11-01), Woodward
patent: 3527761 (1967-06-01), Rowell
patent: 3602250 (1971-08-01), Neenan
patent: 3711236 (1973-01-01), Kinsella
patent: 4018419 (1977-04-01), Monpetit

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