Garage door status signalling device

Details Garage door status signalling device Garage door status signalling device

1998-12-11

2000-12-26

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specific condition

34030915, 340539, 3406931, G08B 2300

Patent

active

061666343

ABSTRACT:
An improved garage door signalling device comprising a switch actuable upon opening of the garage door, a transmitter actuable by said switch to transmit a signal indicating that the door is open, a receiver located at a desired location remote from the garage door providing an audiovisual warning when the garage door is not in the closed position, and means for energizing the garage door signalling device.

REFERENCES:
patent: 4124847 (1978-11-01), Cashman
patent: 4583081 (1986-04-01), Schmitz
patent: 4954810 (1990-09-01), Llewellyn
patent: 5402105 (1995-03-01), Doyle et al.
patent: 5689236 (1997-11-01), Kister

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