GILBERT F HYDE
Engineers in Casselberry, FL

5088341, Feb 18, 1992

Feb 9, 1990

7/477399

Gilbert F. Hyde - Winter Springs FL
David B. Berrong - Oviedo FL

Westinghouse Electric Corp. - Pittsburgh PA

F16H 6334, F16H 5100

74405

An engaging lever lock for rotor turning gear in a steam turbine includes a selectable lock that is disposed to hold the lever at its engaged position and control circuitry for activating the selectable lock. With a first embodiment, the selectable lock includes an electromagnet. On the other hand, with a second embodiment, the selectable lock includes a plunger-pin arrangement that is activated by a solenoid to extend into a hole formed in the lever, and is biased toward a retracted position away from the hole by a spring which is disposed around the pin between the plunger and the solenoid.

4852850, Aug 1, 1989

May 14, 1987

7/049364

Peter L. Wilhelm - Winter Springs FL
Gilbert F. Hyde - Winter Springs FL

Westinghouse Electric Corp. - Pittsburgh PA

F16K 31122

251 28

A steam bypass valve system for a steam turbine. The system provides a supplemental hydraulic seating force to a fast acting bypass valve after the valve plug is positioned against the valve seat with a spring force. The system also provides for quick hydraulic relief in order to retain the fast opening characteristics of a single acting hydraulic valve.

4917570, Apr 17, 1990

May 13, 1988

7/193697

Joseph Pankowiecki - Casselberry FL
Andrew S. Braytenbah - Winter Springs FL
Gilbert F. Hyde - Winter Springs FL

Westinghouse Electric Corp. - Pittsburgh PA

F01D 300

415104

An axial thrust limiting system for a steam turbine including a rotor having a shaft, the turbine containing a plurality of chambers each defining a pressure zone containing a fluid which, during operation of the turbine, is at a pressure which influences the axial thrust load on the shaft, the turbine being constructed such that at least during rapid shut down a pressure differential can develop between two of the chambers to create an excessive axial thrust load on the shaft. The axial thrust limiting system includes controllable valve connected in a fluid flow path between the two chambers, and valve operating components connected for operating the valves during rapid shut down of the turbine in order to reduce the pressure differential between the two chambers.

4766932, Aug 30, 1988

May 14, 1987

7/049484

Frank J. Heymann - Winter Springs FL
Gilbert F. Hyde - Winter Springs FL
Thomas L. Schuchart - Casselberry FL

Westinghouse Electric Corp. - Pittsburgh PA

F16K 4702, F16K 4714

1376253

A steam flow control valve for controlling large fluid flow rates, the valve having a reduced response to vibrational excitations experienced during throttling. A valve stem extending outward from the valve body and connected in the valve to a valve plug is guided by a substantially rigid cylindrical bushing extending substantially through the valve body. The bushing has an inner surface for guiding movement of the valve stem and an outer surface for guiding movement of the valve plug. The plug includes an inner annular guide ring about an upper edge for sliding along the outer surface of the bushing and limiting transverse motion.