Retrofitted hoist machine

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United States of America Patent

PATENT NO 11807493
SERIAL NO

16176945

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Disclosed is a method of retrofitting a legacy hoist machine including: attaching a primary brake assembly to an end surface of a machine shaft, and configuring a controller to: control the primary brake assembly to provide service braking; and control a brake drum assembly as a secondary brake assembly to thereby apply emergency braking.

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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
Blackaby, Barry G Simsbury, US 12 233
Davis, Daniel B Middlefield, US 5 52
Eschenbrenner, John Canton, US 6 8
Koenig, Christopher H Granby, US 7 25
Mendrala, Gary P West Springfield, US 8 17
O'Seep, Gregory M Simsbury, US 6 7
Richter, Jesse R West Hartford, US 8 28

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