Safety device for garage door
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Jul 14, 2005
app pub date -
Jan 8, 2004
filing date -
Jan 8, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a safety device for garage door. It is mainly to install a light guiding mirror at each of the four corners on the inner side of a garage door. Besides, a transmitter and a receiver for laser beam and infrared beam are installed in the garage door control mechanism. Through the surrounding light guiding mirrors, the beam irradiated from the transmitter in the door control mechanism returns to the receiver as a continuous horizontal line crossing itself in a number of times. The path that the beam travels constructs an extensive sensing network. When a garage door is closing and subject to blockage, such a sensing network can respond immediately by commanding the garage door control mechanism to stop closing action and return to open state. The invention is a safety device that can improve the safety when people, cars or objects are moving in and out of a garage.
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Family
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Cited Art Landscape
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