Bizarre Patents
A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7322788 | Protection system for turbo machine and power generating equipment A limit switch 6 is placed on an end portion of the trip rod 4, which converts the mechanical deviation of the trip rod 4 into an electrical signal. The electrical signal from the limit switch 6 is transmitted to quick acting solenoid val... | 01/29/2008 |
| 7194865 | Turbine overspeed protection A method and apparatus for turbine overspeed protection, useful for steam and gas turbines, is disclosed. The apparatus comprises a spring-loaded rod held by a plurality of energized solenoids in an operating position any time the turbine's shaft rotational speed is... | 03/27/2007 |
| 6908277 | Speed governor for a pneumatic rotation motor A speed governor for a pneumatic rotation motor having a pressure air inlet passage (15, 15′), an inlet valve (16; 56) including a flow controlling valve element (18; 58) located in the inlet passage (15, 15′), and a speed responsive ... | 06/21/2005 |
| 6042331 | Pump-turbine An upper reservoir-side conduit or a lower reservoir-side conduit is branched in the vicinity of pump-turbine ends and at least a first pump-turbine out of a plurality of pump-turbines which share the conduit portions located farther than the branch point... | 03/28/2000 |
| 5295783 | System and method for regulating the speed of a steam turbine by controlling the turbine valve rack actuator A system and method for regulating the speed of a steam turbine by operating a steam valve rack assembly to adjust the flow of steam to the turbine by controlling the position of the turbine valve rack actuator in response to high pressure oil fed, reacti... | 03/22/1994 |
| 5244005 | Device for causing a drop in the pressure of high pressure oil controlling admission valves of a turbine in the event of excess speed A device for causing a drop in the pressure of high pressure oil controlling admission valves of a steam turbine in the event of excess speed, the device comprising a speed trip (2) constrained to rotate with the shaft (1) of the turbine and fed downstrea... | 09/14/1993 |
| 4929148 | Turbine trip throttle valve control system Combination trip and throttle valve steam controls for a steam turbine include manual controls to actuate the trip mechanism and shut the turbine down and a trip/reset, with a single control to regulate the steam delivered to the turbine and to reset the ... | 05/29/1990 |
| 4743160 | Process and device for limiting the overspeed of a low head hydroelectric generating set A process and apparatus for preventing the overspeed of a low head hydroelectric generating set including a turbine having an adjustable distributor valve assembly and adjustable vanes wherein the openings of the valve assembly and vanes are continuously ... | 05/10/1988 |
| 4723726 | Rotating speed control device of a rotary type electrostatic spray painting device A rotary type electrostatic spray painting device including a rotary shaft driven by an air turbine. A reflecting face portion and a non-reflecting face portion are formed on the rear end face of the rotary shaft. A rotating speed sensor is arranged adjac... | 02/09/1988 |
| 4475334 | Method of and system for controlling hydraulic turbine A method of and system for controlling a hydraulic turbine including a variable throttle valve located in fluid channel upstream or downstream of the hydraulic turbine adapted to be closed simultaneously as guide vanes of the hydraulic turbine are closed ... | 10/09/1984 |
| 4472105 | Rotary type pumping machine A rotary type pumping machine such as a pump turbine in a pumped storage hydro-electric plant, wherein, when the pumping operation of the runner of the machine is started, compressed air is introduced into the runner chamber to depress the water surface i... | 09/18/1984 |
| 4441029 | Hydropower turbine system There is disclosed a new cavitation free hydraulic turbine system which fully utilizes well-established hydrodynamic theories useful for low-head hydroelectric applications. The hydropower turbine system of the present invention makes use of a fixed blade... | 04/03/1984 |
| 4339226 | Multiple-purpose closed loop automatic control system A multiple-purpose, closed-loop, automatic control system is disclosed, having a system controlled, and means for detecting a controlled variable output from the system controlled and for converting the controlled variable into an electrical feedback sign... | 07/13/1982 |
| 4325671 | Signal wave loaded pressure oil remote controller and governor This invention relates to engine speed governor and is fully hydraulically actuated in proportion to sudden load changes of a steam turbo-generator engine. The invention comprises a transmitter and a receiver inter-connected by tubings. Oil pressure from ... | 04/20/1982 |
| 4168935 | Apparatus and method for controlling water turbine An apparatus for controlling a water turbine is disclosed wherein an auxiliary servomotor having a capacity substantially equal to that of a servomotor for actuating pressure regulator is provided for actuating flow control guide vanes, the auxiliary serv... | 09/25/1979 |
| 4133615 | Microprocessor-based, programmed turbine speed control system A microprocessor-based control system for controlling the speed of a steam turbine by governing the steam supplied thereto from a steam supply source using one or more hydraulically operated servomotor throttle valves is disclosed. The operation of the sp... | 01/09/1979 |
| 4025222 | Control valve unit for a hydraulic servo motor for a control valve of a turbine A valve system for controlling the flow of hydraulic fluid for opening and closing the main control valve for a turbine system. The valve system comprises: first valve means for passing hydraulic fluid to the servo motor to maintain the control valve open... | 05/24/1977 |
