Damper control apparatus

Details Damper control apparatus Damper control apparatus

1976-07-12

1978-02-28

Wayner, William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

91400, 126285R, 137 98, 137510, 236 80B, 431 20, F23N 302

Patent

active

040761711

ABSTRACT:
An apparatus for opening and closing the draft hood discharge opening and vent and fuel line of a fluid fuel-fired heating device such as a domestic water heater. The disclosed apparatus includes a diaphragm-type expansible chamber fluid motor assembly positioned in the burner fuel supply line. The motor assembly is mechanically linked to a damper assembly such that the supply of pressurized fuel acts to actuate the motor for opening the damper assembly prior to the motor assembly admitting fuel to the burner. Additionally, when the supply of fuel is terminated, the motor assembly does not close the damper assembly until after the motor assembly stops fuel to the burner.

REFERENCES:
patent: 1336937 (1920-04-01), Allman
patent: 1813395 (1931-07-01), Fraser
patent: 2112554 (1938-03-01), Beam
patent: 2130491 (1938-09-01), Gilliland
patent: 2321423 (1943-06-01), Rogers
patent: 2852032 (1958-09-01), Moore

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