ELEVATOR BRAKE MONITORING

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United States of America Patent

SERIAL NO

15537452

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An elevator brake, having a rotatable component mounted to a shaft, is monitored for contamination by projecting electromagnetic radiation onto the rotatable component or onto the shaft, and receiving reflected electromagnetic radiation. If the monitored zone on the rotatable component or the shaft becomes contaminated, for example with oil or grease, the nature of the electromagnetic radiation reflected from the zone will change noticeably.

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Patent Owner(s)

Patent OwnerAddress
INVENTIO AGSWISS HELGE SITWELL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ammon, Urs Ebikon, CH 8 63

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