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Richard R. Polacek
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Simsbury, CT, US
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last 30 patents
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Patent Grant
Linear motor transfer of cab horizontally between elevator and boge...
Patent number
5,799,755
Issue date
Sep 1, 1998
Otis Elevator Company
Samuel C. Wan
B66 - HOISTING LIFTING HAULING
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Patent Grant
Touch button light ring system
Patent number
5,039,832
Issue date
Aug 13, 1991
Otis Elevator Company
Richard R. Polacek
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Call button indicator and wall plate for elevators
Patent number
D318632
Issue date
Jul 30, 1991
Otis Elevator Company
Richard R. Polacek
D10 - Measuring, testing, or signalling instruments