Elevator door with a door contact switch

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9546077
APP PUB NO 20160101967A1
SERIAL NO

14894564

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A switching device for an elevator door provides a door contact signal. The switching device includes a magnet, a plurality of proximity sensors, and a detection area, which area is adjoined by the proximity sensors and in which the magnet can be moved. A sensor signal can be generated by each of the proximity sensors in at least one position of the magnet in the detection area, wherein the sensor signals are dependent on the distance from the magnet to the proximity sensors. A method for providing the door contact signal utilizes the switching device.

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First Claim

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Patent Owner(s)

  • INVENTIO AG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Birrer, Eric Buchrain, CH 22 164
Müller, Rudolf J Lucerne, CH 4 11

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