Damper latch

Details Damper latch Damper latch

1978-09-28

1980-03-18

Yeung, James C.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

431 20, 251133, 251 38, 251284, 126285B, G05D 2300

Patent

active

041935411

ABSTRACT:
An automatic flue damper positioned respectively to open and closed positions by means of motive apparatus, such as a solenoid motor, is provided with mechanical means for automatically latching the damper in its open position.

REFERENCES:
patent: 2224705 (1940-12-01), Stringer
patent: 3273625 (1966-09-01), Holtzman et al.
patent: 3580238 (1971-05-01), Diehl
patent: 3738388 (1973-06-01), Parker et al.
patent: 3934796 (1976-01-01), Smith, Jr. et al.
patent: 4017026 (1977-04-01), Felter
patent: 4039123 (1977-08-01), Frankel
patent: 4046318 (1977-09-01), Ripley

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