Means controlling a flue damper

Details Means controlling a flue damper Means controlling a flue damper

1979-11-13

1981-10-20

Wayner, William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

236 94, G05D 2300

Patent

active

042956030

ABSTRACT:
A flue damper is rotated 360.degree. in a predetermined direction in 90.degree. increments to be selectively opened and closed in 90.degree. increments. The incremental rotation is accomplished by a motor driven timing mechanism with power to the motor being controlled by the timing mechanism and a solid state switching means selectively energizing and deenergizing the motor.

REFERENCES:
patent: 3164755 (1965-01-01), Holt et al.
patent: 3687415 (1972-08-01), Turkot
patent: 4017024 (1977-04-01), Grostick et al.
patent: 4084743 (1978-04-01), Matthews
patent: 4087045 (1978-05-01), Matthews
patent: 4184107 (1980-01-01), Turini et al.

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