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US 5,509,233 AGranted
Motorized garage door opener unlocking system
OwnerFrank R. Petersoninventor
Life of this patent
Estimating the term…
Abstract
This invention provides an existing garage door locking system with a motorized unlocking system that will unlock the garage door prior to motorized opening, but maintain garage accessability and security with the existing garage door locking system if a power or motorized garage door system failure occurs.
Claims1
A garage door unlocking device to be incorporated with an existing spring operated door locking system when an automatic garage door opener is installed, said device comprising;
- a bracket mounted on the door at the upper edge thereof, said bracket having slotted parallel sides, a pin slidably mounted in the slots and secured therein by a locking ring, said pin connected to and actuated by an operating arm of the automatic garage door opener, a yoke connected to the pin at a first end thereof and attached to one end of a cable at a second end thereof, an actuation arm connected at one end to an interior handle of the existing garage locking system at a distance offset from the center of the existing door handle pivot point, said actuation arm being connected at its other end to the other end of said cable, whereby when the automatic garage door opener is operated, the operating arm moves the pin in the slots which raises the yoke and thereby pulls the cable which moves the actuation arm sufficiently to rotate the handle and release the spring operated locks prior to opening the garage door.
Dependencies are inferred from the claim text.