Flame failure devices

Details Flame failure devices Flame failure devices

1988-02-03

1989-05-23

Walton, George L.

Fluid handling

Combustion failure responsive fuel safety cut-off for burners

126 52, 236 99R, 251 65, 431 59, F23D 516, F16K 3164

Patent

active

048320706

ABSTRACT:
The invention provides a flame failure device in which the reservoir exposed to the flame is charged with air and is communicated via a capillary tube to displace a membrane and hold the main valve in an open position, and the valve is closed by a spring when pressure falls as a result of the flame being extinguished. The system is re-charged via a one-way valve when pressure in the system falls below ambient pressure.

REFERENCES:
patent: 1720900 (1929-07-01), Ileman
patent: 2417577 (1947-03-01), Van Denberg et al.
patent: 2683486 (1954-07-01), Wittmann
patent: 2688364 (1954-09-01), Wittmann
patent: 2716015 (1955-08-01), Allen
patent: 2746471 (1956-05-01), Cobb
patent: 2752930 (1956-07-01), Stouder
patent: 3975135 (1976-08-01), Kinsella et al.
patent: 4303384 (1981-12-01), Barnes
patent: 4518003 (1985-05-01), Charron

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