|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
|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...
|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...
|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...
|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...
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...
|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...
|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...
|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...
|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...