Stoves and furnaces – Stovepipes
Patent
1982-03-12
1983-05-31
O'Connor, Daniel J.
Stoves and furnaces
Stovepipes
110163, 126285B, 236 1G, 431 20, 431 80, F23J 1100, F23L 100, F23N 510
Patent
active
RE0312568
ABSTRACT:
An automatic damper means and controls, which provide an exceedingly safe automatic damper for the exhaust duct-work of an associated gas furnace or the like, by automatic control of the damper, and automatic control of the gas supply, with redundancy features for providing exceedingly safe operation.
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O'Connor Daniel J.
Spray Robert A.
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