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| Number | Title | Issue Date |
| 7692336 | Method for predicting a future voltage and/or current curve According to the invention, a controlled or synchronous switching of an electrical power breaker (1) can be guaranteed by means of predicting a future voltage and/or current curve from actual voltage and/or current data in an electrical energy network (5 | 04/06/2010 |
| 6995481 | Energy saving electrical power control device and method An electrical load power control device is described that reduces the power consumption of inductive and inductive-dissipative loads, including for example fluorescent lighting. The power circuit of the invention interrupts AC power supply to the load during a plura... | 02/07/2006 |
| 6356425 | Timer-thermal-overload shutoff apparatus A timer-thermal shutoff apparatus can control and protect an electrical appliance. The timer-thermal shutoff apparatus comprises a housing; male connector extending from the housing; female receptacle to receive a male connector from one or more electrica... | 03/12/2002 |
| 4739186 | Frequency-selectable pulsed-sinusoid generation system A system for generating a sequence of pulses of carrier having individually selectable frequencies employs a pulsed oscillator for providing a single pulse of a carrier signal having a predetermined frequency. The single pulse is applied to a dispersive f... | 04/19/1988 |
| 4644137 | Circuit for controlling a rice cooker with power interruption control A circuit for controlling a rice cooker having at least one heater used for cooking rice comprises, a rice cooking mode setting section capable of selectively setting three or more different rice cooking modes having high, medium and low heater heating ca... | 02/17/1987 |
| 4626699 | Pulse generator An electromechanical pulse generator includes a toothed disk driven by a rotating shaft to operate two pairs of contacts to generate one pulse output and one direction-of-rotation output. The pulse contacts and the direction-of-rotation contacts operate i... | 12/02/1986 |
| 4320309 | Oscillatory circuit utilizing PTC resistor A control circuit for producing a repetitive closed-circuit, open-circuit condition between an electrical power source, such as a battery, and an electrical load comprises a positive temperature coefficient resistor in series with a relay coil. The PTC re... | 03/16/1982 |
| 4135122 | Method and apparatus for heating electrical motors and like devices A motor heat control circuit is provided for heating an electrical motor during the time of motor shutdown, with the circuit functioning to interconnect a winding of the motor with a source of alternating current voltage for substantially an entire half-c... | 01/16/1979 |
| 4086888 | Electronic vacuum modulator for controlling air flow to a throttle modulator mechanism for limiting engine speed and vehicle speed An electronic vacuum modulator is disclosed for controlling air flow to a throttle valve modulator mechanism for limiting the maximum speed of an engine and, optionally, for also limiting the maximum vehicle speed. An electric signal having a frequency pr... | 05/02/1978 |
| 3967603 | Speed sensitive switching device This invention provides a speed sensitive device for controlling the speed of an engine. A tachometric generator is provided which supplies a voltage or a function of the engine speed, and this is compared with a reference voltage which is a fraction of t... | 07/06/1976 |
