Shut-off system for flue gas conduits or air intake conduits in

Details Shut-off system for flue gas conduits or air intake conduits in Shut-off system for flue gas conduits or air intake conduits in

1980-09-08

1983-01-25

Favors, Edward G.

Furnaces

Draft regulators

Damper

110175A, 126285R, 126290, 126292, F23L 100

Patent

active

043697186

ABSTRACT:
An energy-saving closure system is provided for use in preventing needless energy loss. The system employs a pivotal closure adapted to alternately move between the fully open and fully closed portion in a conduit for conveying gases relative to a combustion zone. The closure requires pressure diffentials only for being urged into the open and closed positions such as normally occur in the heating cycle. No energy-consuming, auxiliary apparatus is needed.

REFERENCES:
patent: 802110 (1906-10-01), Peterman
patent: 2111611 (1938-03-01), Brenner
patent: 2557210 (1951-06-01), Viola et al.
patent: 2620984 (1952-12-01), Larsen
patent: 3123028 (1964-03-01), Bodeker
patent: 3987785 (1976-10-01), Long

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