Venting control device

Details Venting control device Venting control device

1988-04-04

1989-08-08

Joyce, Harold

Stoves and furnaces

Stoves

Cooking

98119, 126286, F23L 1702

Patent

active

048542253

ABSTRACT:
A device for controlling the venting of gases and unburned hydrocarbons from a source location into the atmosphere and includes an enhancement that prevents an entrance of cold drafts and foreign matter in a reverse direction to the source. The device may also be incorporated into a system for venting or distributing air or gases into discrete areas of a residence or commercial establishment.

REFERENCES:
patent: 190181 (1877-05-01), Baker
patent: 1947536 (1934-02-01), Shakespeare, Jr.
patent: 1968652 (1934-07-01), Morrow
patent: 2733889 (1956-02-01), Mattingly
patent: 2750869 (1956-06-01), Cole et al.
patent: 4691624 (1987-09-01), Moore

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