Overhead door interlock device
OwnerJames Morganinventor
Life of this patent
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Abstract
An overhead door interlock device provides an electrical signal indication of the locked or unlocked status of an overhead door, and interfaces with control circuitry of the door's opener to allow or disallow operation of the door based on the locked or unlocked status. In one embodiment, a lever is pivotably attached to the doors track, with the lever engaging with a switch mechanism to indicate the locked or unlocked status of the door. A spring mechanism automatically returns the lever to an unlocked position when the door's lock bar is retracted, with the lever mechanically inhibiting locking of the door until the lever is moved by a user.
Claims20
An overhead door interlock device, comprising:
- a lever extending between first and second ends, wherein the first end is configured for pivotable attachment to a track of an overhead door and wherein the second end is configured to actuate a switch;
- and
- a switch mechanism configured to attach to the track in proximity to the second end, wherein the switch provides an electrical signal indicative of a position of the lever to control circuitry of a door opener for operating the overhead door.
An overhead door interlock device, comprising:
- a lever configured for pivotable attachment to a track of an overhead door;
- a switch mechanism for attachment to the track in proximity to the lever;
- and
- a spring mechanism that provides a spring bias to the lever such that the lever is returned to an unlocked position when a mechanical locking mechanism of the overhead door is unlocked.
An overhead door interlock device, comprising:
- a lever configured for pivotable attachment to a track of an overhead door such that the lever is movable between a first locked position and a second unlocked position.
- a switch positioned in proximity to the lever such that the lever engages or disengages the switch when moved between the first locked position and the second unlocked position;
- and
- a spring mechanism that provides a spring bias to the lever such that the lever is returned to an unlocked position when a mechanical locking mechanism of the overhead door is unlocked.
Dependencies are inferred from the claim text.