Garage door opener drive mechanism

Details Garage door opener drive mechanism Garage door opener drive mechanism

1989-04-11

1990-02-13

Bui, Thuy M.

Endless belt power transmission systems or components

Friction drive pulley or guide roll

With particular belt

474174, F16H 5532

Patent

active

049002945

ABSTRACT:
An automatic garage door opener mechanism having improved safety and security is disclosed, which comprises:

REFERENCES:
patent: 2060322 (1936-11-01), Johnson
patent: 2471969 (1949-05-01), Meyer
patent: 4364736 (1982-12-01), Hetz

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