Thomas J. Hoffman

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Unionville, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Rope tension monitoring assembly and method
- Patent number 6,123,176
- Issue date Sep 26, 2000
- Otis Elevator Company
- Hugh J. O'Donnell
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Rope speed monitoring assembly and method
- Patent number 5,886,308
- Issue date Mar 23, 1999
- Otis Elevator Company
- Richard J. Ericson
- B66 - HOISTING LIFTING HAULING