Safety circuit for an elevator system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10239729
APP PUB NO 20170001833A1
SERIAL NO

15038777

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A safety circuit for an elevator system includes a first circuit having a plurality of switching contacts and a second circuit having a plurality of switching contacts. The switching contacts of the first circuit are connected in series, and the switching contacts of the second circuit are connected in parallel. Each switching contact of the first circuit is associated with a different switching contact of the second circuit. The switching contacts that are associated with each other are in opposite switching states.

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Patent Owner(s)

  • INVENTIO AG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lustenberger, Ivo Buttisholz, CH 21 72

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