| Patents for F01D 21 - Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for (3,351) |
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| 02/21/1978 | US4075562 Speed sensor mounting for a gas turbine |
| 01/31/1978 | US4071897 Power plant speed channel selection system |
| 01/31/1978 | US4071870 Apparatus to generate minimally delayed instructions for turbine valves in the event of power system short circuits |
| 12/13/1977 | US4063167 Blade tip clearance measuring apparatus |
| 11/29/1977 | USRE29485 Method of effecting fast turbine valving for improvement of power system stability |
| 11/29/1977 | US4059960 Method and apparatus for testing the movability of valve plugs |
| 11/08/1977 | US4057714 Durability or service-life monitoring device for a turbogenerator shaft |
| 11/08/1977 | US4057359 Ballistic nylon fabric turbine governor housing shielding means |
| 10/11/1977 | US4053786 Transducer out of range protection for a steam turbine generator system |
| 10/11/1977 | US4053745 Valve contingency detection system for a turbine power plant |
| 09/27/1977 | US4050306 Method and apparatus for measuring pressures |
| 09/20/1977 | US4049644 Device for measuring tip deflection of rotating blades |
| 09/20/1977 | US4049349 Device for measuring rotor tip clearance in operating turbomachinery |
| 08/30/1977 | US4044550 Turbine wheel containment shroud for a pneumatically powered turbine engine starter motor |
| 08/09/1977 | US4040790 Moisture and rust detector for hydraulic control systems |
| 06/21/1977 | US4031366 Low cycle fatigue damage counter |
| 05/24/1977 | US4025762 Reference signal circuit |
| 05/24/1977 | US4025222 Control valve unit for a hydraulic servo motor for a control valve of a turbine |
| 05/10/1977 | US4022540 Frangible airfoil structure |
| 05/03/1977 | US4020869 Combined stop and intercept valve for steam turbines |
| 04/26/1977 | US4019713 Rapid shutoff extraction check valve |
| 04/26/1977 | US4019390 System and method for complete on line testing of a mechanical overspeed trip channel associated with an electrohydraulic emergency trip system for a turbine power plant |
| 04/12/1977 | US4017217 Overspeed protection system |
| 04/12/1977 | US4017209 Turbine rotor construction |
| 03/08/1977 | US4011017 Borescope support apparatus |
| 02/22/1977 | US4008747 Method for locating insert in cast iron |
| 02/15/1977 | US4007595 Dual turbine power plant and a reheat steam bypass flow control system for use therein |
| 01/25/1977 | US4004860 Turbine blade with configured stalk |
| 01/11/1977 | US4002065 Steam turbine valve positioning system having throttle valve test capability |
| 01/04/1977 | US4001654 Testable protective system |
| 12/28/1976 | US3999787 Method of effecting fast turbine valving for improvement of power system stability |
| 12/21/1976 | US3998058 Method of effecting fast turbine valving for improvement of power system stability |
| 11/09/1976 | US3990244 Control system for steam flowrate and steam pressure |
| 11/02/1976 | US3989408 Positioning device for a turbine rotor position sensor |
| 11/02/1976 | US3989407 Wheel containment apparatus and method |
| 10/26/1976 | US3987818 Safety trip valve for steam or gas turbines with means to assure controlled opening from the closed position |
| 09/07/1976 | US3978889 Steam supply control device |
| 08/10/1976 | US3974313 Woven cloth |
| 07/27/1976 | US3971218 Means for preventing an engine turbocharger from being damaged by foreign objects |
| 06/15/1976 | US3963283 Emergency bearing |
| 06/01/1976 | US3960006 Non-destructive test apparatus and method for a material having a cavity therein |
| 05/25/1976 | US3958600 Combined starting and rapid shut-off mechanism for steam and gas turbines |
| 05/11/1976 | US3956637 Intercept valve controlling method and system for use in a heat power plant |
| 04/27/1976 | US3952391 Turbine blade with configured stalk |
| 04/06/1976 | US3948478 Hydraulic servo system for steam turbines |
| 04/06/1976 | US3948054 Steam turbine blade protection system and method especially for electric power plants |
| 02/03/1976 | US3936219 Flexible turbine missile shield |
| 02/03/1976 | US3936217 Inspection port for turbines |
| 01/13/1976 | US3932213 Actuation |
| 01/13/1976 | US3931714 Electrohydraulic emergency trip system and method for a turbine power plate |
| 01/06/1976 | US3931619 Overtemperature monitor and integrator apparatus |