Garage door opener heater

Details Garage door opener heater Garage door opener heater

1987-05-22

1988-12-20

Goldberg, E. A.

Electric heating

Heating devices

Combined with diverse-type art device

16DIG1, 49199, 219213, 219535, H05B 356

Patent

active

047926597

ABSTRACT:
A garage door opener heater for use on garage doors to heat the drive track of the opener during cold weather to prevent binding and restricted movement of the track when the lubricates within the track solidify at cold temperatures.

REFERENCES:
patent: 1833066 (1931-11-01), Bradfish
patent: 2703236 (1955-03-01), Verdier
patent: 2731804 (1956-01-01), Grubbs
patent: 2858408 (1958-10-01), Barroero
patent: 3064110 (1962-11-01), Vogler
patent: 3074096 (1963-01-01), Van Hess
patent: 3207887 (1965-09-01), Drugmand
patent: 3462885 (1969-08-01), Miller
patent: 3697723 (1972-10-01), Winsler
patent: 3909980 (1975-10-01), Courtney
patent: 4163144 (1979-07-01), Reynier

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