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Young S. Yoo
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Avon, CT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Elevator car hitch
Patent number
5,611,412
Issue date
Mar 18, 1997
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Flexible elevator hitch
Patent number
5,490,577
Issue date
Feb 13, 1996
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator load-weighing at car hitch
Patent number
5,421,433
Issue date
Jun 6, 1995
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Bidirectional eddy current overspeed protection for elevators
Patent number
5,366,044
Issue date
Nov 22, 1994
Otis Elevator Company
Eric K. Jamieson
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator cab position sensing with reduced operating noise
Patent number
5,360,085
Issue date
Nov 1, 1994
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Recalibration of hitch load weighing using dynamic tare
Patent number
5,343,003
Issue date
Aug 30, 1994
Otis Elevator Company
Eric K. Jamieson
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Stopping of elevators in the up direction
Patent number
5,307,904
Issue date
May 3, 1994
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Positive terminal overspeed protection by rail grabbing
Patent number
5,301,773
Issue date
Apr 12, 1994
Otis Elevator Company
Eric K. Jamieson
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Pit buffer assembly for high speed elevators
Patent number
5,238,088
Issue date
Aug 24, 1993
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator drive motor to encoder connection having a flexible rod an...
Patent number
5,223,679
Issue date
Jun 29, 1993
Otis Elevator Company
Young Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
One to two stroke roped elevator pit buffers
Patent number
5,195,616
Issue date
Mar 23, 1993
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Noise and vibration reduction at elevator cab hitch
Patent number
5,181,586
Issue date
Jan 26, 1993
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Pivot mount of elevator load-weighing at car hitch
Patent number
5,172,782
Issue date
Dec 22, 1992
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator noise minimizer
Patent number
5,131,504
Issue date
Jul 21, 1992
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Diversion of airflow around an elevator counterweight
Patent number
5,080,201
Issue date
Jan 14, 1992
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator occupant load weighing sensor mounting assembly
Patent number
5,046,584
Issue date
Sep 10, 1991
Otis Elevator Company
Young S. Yoo
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Reduction of noise and vibration in an elevator car by selectively...
Patent number
5,018,602
Issue date
May 28, 1991
Otis Elevator Company
John K. Salmon
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator car mounting assembly
Patent number
4,899,852
Issue date
Feb 13, 1990
Otis Elevator Company
John K. Salmon
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator car vibration control with friction damper
Patent number
4,548,297
Issue date
Oct 22, 1985
Otis Elevator Company
John K. Salmon
B66 - HOISTING LIFTING HAULING