Thermal damper assembly having position controls

Details Thermal damper assembly having position controls Thermal damper assembly having position controls

1978-07-21

1980-12-02

Wayner, William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

236 93R, 236 96, 431 20, 126289, 126292, 126295, F23N 300, F23L 300, G05D 2300

Patent

active

042366682

ABSTRACT:
A thermal damper assembly mounted to substantially close a flue at room temperature is equipped with thermally responsive coils to move the damper to an open position in response to heat generated by combustion. To allow commencement of combustion the damper assembly is equipped with latch means to position the damper open in preparation for combustion, said latch means responding automatically to an adequate advance of said damper toward its fully open position to disable its own latching capability whereby said coils are permitted to substantially fully close the damper assembly without further attention to the latch means, which serves only to releasably position the damper assembly for commencement of combustion. Also illustrated in this application are various position control members for predetermining fully open and substantially fully closed damper positions. Also illustrated in this application are inboard and outboard mountings for the thermally responsive coils.

REFERENCES:
patent: 2975975 (1961-03-01), Weber
patent: 3228605 (1966-01-01), Diermayer et al.
patent: 3366333 (1968-01-01), Diehl
patent: 3987630 (1976-10-01), Hein et al.
patent: 4165833 (1979-08-01), Nagel

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