Sib S. Ray

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Newington, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method of thermally detecting elevator machine brake
- Patent number 6,095,289
- Issue date Aug 1, 2000
- Otis Elevator Company
- Sib S. Ray
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Mechanical overspeed safety device
- Patent number 5,299,661
- Issue date Apr 5, 1994
- Otis Elevator Company
- Mukunda B. Pramanik
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Hydraulic elevator muffler
- Patent number 5,101,930
- Issue date Apr 7, 1992
- Otis Elevator Company
- Richard N. Fargo
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method and apparatus for protecting a cylinder of an hydraulic elev...
- Patent number 5,076,146
- Issue date Dec 31, 1991
- Otis Elevator Company
- Louis Bialy
- B66 - HOISTING LIFTING HAULING