Draft control arrangement

Details Draft control arrangement Draft control arrangement

1979-04-09

1981-02-10

Tapolcai, Jr., William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

236 73R, 236101E, G05D 2308

Patent

active

042496942

ABSTRACT:
A draft control arrangement for use with a gas-fired heating apparatus. The flow of waste gas through a draft hood of the apparatus is throttled by bimetal element means which responds to temperature change for reducing or enlarging the throttle area. Control means is provided for causing the rate of throttle area change during a certain phase of operation to vary from the rate of throttle area change during other phases of operation.

REFERENCES:
patent: 1669707 (1928-05-01), Haynes
patent: 1806530 (1934-05-01), Giesler
patent: 2060332 (1936-11-01), Mayo
patent: 2763433 (1956-09-01), Hill
patent: 2902262 (1959-09-01), Morse
patent: 2909332 (1959-10-01), Blumberg

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