Temperature responsive vent damper

Details Temperature responsive vent damper Temperature responsive vent damper

1981-09-08

1983-05-24

Tapolcai, William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

236 93R, G05D 2308

Patent

active

043846718

ABSTRACT:
A heater vent having a temperature responsive damper such as a bimetallic element is disclosed. A shroud-like structure is positioned to cooperate with the temperature responsive element to close the vent at an elevated temperature and thereby reduce loss of residual heat while permitting the combustion gases to be completely purged from the firebox. For safety, movement of the temperature responsive element is uninhibited in all positions with complete vent closure occurring at ambient temperature and with the damper open during heater burner operation.

REFERENCES:
patent: 199696 (1878-01-01), Dikeman
patent: 3845783 (1974-11-01), De Lepeleire
patent: 4143812 (1979-03-01), Fortune
patent: 4249694 (1981-02-01), Diermayer et al.
patent: 4301833 (1981-11-01), Donald

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