Thermal damper for rectangular flue

Details Thermal damper for rectangular flue Thermal damper for rectangular flue

1981-04-06

1982-11-30

Tapolcai, William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

236 49, 236101D, 374206, F23N 300

Patent

active

043612725

ABSTRACT:
A thermally responsive damper for operation in a rectangular ventilation duct.

REFERENCES:
patent: 1337907 (1920-04-01), Hall
patent: 1659875 (1928-02-01), Jacobs
patent: 2959933 (1960-11-01), Burke
patent: 2975975 (1961-03-01), Weber
patent: 3273798 (1966-09-01), Kuipper
patent: 3366333 (1968-01-01), Diehl
patent: 3753548 (1973-08-01), Jung et al.
patent: 3804366 (1974-04-01), Rubright
patent: 4165833 (1979-08-01), Nagel

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