Adjustment of drop rate of elevator car with electromagnetic brake system

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United States of America Patent

PATENT NO 11897725
APP PUB NO 20200339382A1
SERIAL NO

16925945

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A braking system for an elevator includes an electromagnetic brake operably connected to an elevator car, and a control circuit operably connected to the electromagnetic brake. The control circuit includes a switching mechanism configured to selectively modify a rate of engagement of the electromagnetic brake to selectively modify a rate of deceleration of the elevator car. The switching mechanism has a first position, a second position and a third position, to selectively modify the rate of engagement.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
OTIS ELEVATOR COMPANYONE CARRIER PLACE FARMINGTON CT 06032

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Agirman, Ismail Southington, US 73 327
Lotfi, Amir South Windsor, US 45 643
Millett, Steven M Plainville, US 8 31

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