Electromagnetic brake configured to slow deceleration rate of passenger conveyer during braking

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12110207
APP PUB NO 20210147177A1
SERIAL NO

16683328

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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This disclosure relates to an electromagnetic brake configured to slow a deceleration rate of a passenger conveyer, such as an elevator car, during braking. In particular, this disclosure relates to a passenger conveyer system including the electromagnetic brake and a corresponding method. An example system includes a controller and an electromagnetic brake. The electromagnetic brake includes a disc configured to interface with a drive shaft, a spring, and a plate biased in a first direction into engagement with the disc by a bias force of the spring. The electromagnetic brake further includes an electromagnet selectively activated in response to a command from the controller to produce a magnetic field attracting the plate in a second direction opposite the first direction to partially offset the bias force of the spring. Further, when the electromagnet is activated, the plate engages the disc.

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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)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wei, Wei Farmington, US 563 3265

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