Overhead garage door opener

Details Overhead garage door opener Overhead garage door opener

1977-07-26

1979-09-18

Downey, Kenneth

Movable or removable closures

Up-and-over type; e.g., moves from vertical to withdrawn...

With operator

49357, 49358, E05F 1520

Patent

active

041678338

ABSTRACT:
An overhead garage door opener in which an actuating motor is secured to the door and is coupled to a capstan. A heavy cord, secured at one end to the garage wall above the door and at its other end near the back of the garage, is wound around the capstan. A motor control system such as a coded sound producing device and a time delay receiving circuit is disclosed, to start the motor to open or close the door.

REFERENCES:
patent: 2703236 (1955-03-01), Verdier
patent: 3348336 (1967-10-01), Hashagen
patent: 3733747 (1973-05-01), Fox et al.

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