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| Number | Title | Issue Date |
| 7633184 | Fan and switch control device thereof A switch control device receives an input signal and a power signal and includes a control unit and a switch unit. The control unit has a predetermined value and receives the input signal and the power signal. When the input signal is lower than the predetermined va... | 12/15/2009 |
| 7240225 | System and method for throttling power in one or more information handling systems An information handling system includes support for dynamic power throttling. In one embodiment, an information handling system includes power level detection and power control modules. The power level detection module may monitor power consumption for the informati... | 07/03/2007 |
| 7023200 | Non-contacting large angle rotary position sensor for rotating shaft A rotation sensor provides a control with an indication of shaft position. The sensor utilizes a magnetic connection between a cam follower and a transducer. The magnetic connection eliminates problems in the prior art such as degradation due to wear and corrosion. ... | 04/04/2006 |
| 6928504 | PC card motion detector A motion detector is provided that enables power to a computer module to be disconnected prior to removal of the module from the connector. Actuation of a sensor causes a shutter assembly to move vertically. The shutter assembly is in communication with a switch. Mo... | 08/09/2005 |
| 5637931 | Safety apparatus for an electrical iron A safety circuit for an electrical iron is provided comprising a double through position sensitive switch having a common contact that is connectable to connect a horizontal position sensing contact and a vertical position sensing contact. When the iron i... | 06/10/1997 |
| 5539308 | Device for measuring rotating speed having a resonent circuit and a reference circuit A rotary speed measurement device includes an oscillator including a resonant circuit with a coil which conducts a resonant current to develop a magnetic field therearound. A wheel is connected to rotate together with a rotating member and is provided alo... | 07/23/1996 |
| 5486726 | Power-supply control system of peripheral equipment of computer The present invention discloses a power supply control system for the peripheral equipment of a computer which generates a signal for automatically cutting off the input power supplied to the peripheral equipment after a user has stop working on a compute... | 01/23/1996 |
| 5418401 | Power supply apparatus for a vehicle having batteries of different voltages which are charged according to alternator speed A power supply apparatus for a vehicle includes an alternator for generating an output voltage for charging a first battery and a second battery having a higher voltage than the first battery. The output voltage of the alternator is controlled by a voltag... | 05/23/1995 |
| 5389825 | System of controlling changeover of an electric power source for an electric motor vehicle A system of changing over an electric power source for an electric motor vehicle including a secondary battery and a generator. The system is provided with a changeover circuit for changing over a state of connection between the secondary battery and the ... | 02/14/1995 |
| 5274326 | Circuit configuration for processing the output signals of a speed sensor to eliminate noise A circuit configuration for editing, or processing the output signal of a speed sensor (5) includes a trigger circuit (1, 22), the changeover points or "hysteresis" of which are controllable, with the circuit configuration being furnished with circuits fo... | 12/28/1993 |
| 5182460 | Method and apparatus to regulate illumination range of a motor vehicle In a method and apparatus to regulate the illumination range of a motor vehicle in which, at a position on a front axle and at a position on a rear axle, signals are measured which are dependent upon the relative positions of a motor-vehicle body to the f... | 01/26/1993 |
| 5023468 | Safety device for car passengers A safety device for a vehicle occupant comprising a restraint for the vehicle occupant, a sensing circuit for evaluating a vehicle condition, a control circuit for actuating the restraint in response to a predetermined vehicle condition, and two separate ... | 06/11/1991 |
| 5003193 | Scan control circuit for hand-held type printer A scan control circuit for detecting a stable scanning movement of a hand-held type printer over a copy paper includes an encoder for producing pulses in response to the scan movement of the hand-held type printer. The pulses are applied to a stable scan ... | 03/26/1991 |
| 4982106 | Device for detecting at least one variable relating to the movement of a movable body A lever (6) is pushed by a cam profile (23) formed on an actuating member (9) fastened to a movable body (12), the movement of which is to be detected. A cam (13) fixed to the lever moves a plunger (16) which actuates a position switch (33). There is inte... | 01/01/1991 |
| 4916570 | Voltage comparator circuit for monitoring a process output voltage within a preset range A fluctuating voltage to be monitored is fed to the non-inverting input of a first op amp via a first input resistor; a reference voltage is fed to the inverting input of the second op amp via a second input resistor. The inverting input of the first op a... | 04/10/1990 |
| 4847721 | Safety device for a tool powered by an electric motor A safety device for a tool powered by an electric motor. It has a main switch, electronic controls, and a tachometer-generator. In order to provide a device for switching off a motor as a function of motor speed that is simple and economical and that will... | 07/11/1989 |
| 4812602 | Spring-loaded centrifugal switch element The switch element for triggering a cut off or control function is accommodated in a shaft (1), for example of a speed monitor. A spring-loaded release bolt (2) is surrounded coaxially by a compensating bush (4) which has a compensating ring (15), a sprin... | 03/14/1989 |
| 4797564 | Robot overload detection mechanism An overload detection mechanism for a robot is disclosed, wherein first and second members are relatively urged together by an urging means to urge the axis of the second member toward the Z axis of the first member. The second member is guided in any mov... | 01/10/1989 |
| 4788453 | Arrangement for the logical interlinkage of mechanical signals Mechanical signals which are made available in the form of limited travel distances can be fed, for obtaining at least one output variable, to an arrangement in which plungers assigned to the input variable are arranged in space parallel to each other, wh... | 11/29/1988 |
| 4764685 | Method and circuit configuration for processing the output signals of a rotational speed sensor To process the output signal of a rotational speed sensor (2) which generates an alternating voltage dependent in respect of frequency and amplitude on the rotational speed, two low-pass filters (TP1, TP2) serve to produce a useful signal (I1), on the one... | 08/16/1988 |
| 4564789 | Dimmer for use with vehicle A dimmer for use with a vehicle is provided. It has a vehicle speed detector circuit for detecting a state wherein the vehicle speed is within a predetermined range to generate a signal, an acceleration detector circuit for detecting a state wherein the a... | 01/14/1986 |
| 4477734 | Control system for eddy current coupling drive for armoured face conveyors A control system for eddy current coupling drive for armoured face conveyors wherein the systems controls a number of eddy current drives via a pair of power supply lines and a single pilot line. A main contactor controlled by a relay is held closed by co... | 10/16/1984 |
| 4319146 | Power driven equipment safety device A safety device for power driven equipment which mechanically locks an access door on the equipment in closed position until the power drive motor has coasted to a stop. A manually operated locking bolt for the access door is pivotally mounted on a housin... | 03/09/1982 |
| 4310817 | Automatic circuit breaking accessory for an electric storage battery An automatic circuit breaker for an electrical storage battery is adapted to be mounted on a battery terminal post so that the battery post forms one contact of the circuit breaker. A latch mechanism holds a contact piston against the battery post to form... | 01/12/1982 |
| 4264905 | Drive belt movement detecting system A belt movement sensor detects the movement of a belt having signal generating means embedded in or emplaced on the surface of a drive belt, and actuates a warning signal and/or controls the drive motor when the signal from the sensor varies by more than ... | 04/28/1981 |
| 4254344 | Turbine start-up switch A prime mover which is equipped with an electric speed governor may produce adequate electrical power output through a shaft driven permanent magnet alternator to run the electric speed governor. However, initially an auxiliary power source must be connec... | 03/03/1981 |
| 4078231 | Method and apparatus for monitoring the flaws in spun yarn produced on open end rotor spinning machines A method and apparatus for monitoring the production of spun yarn in an open end rotor spinning machine. The spun yarn is withdrawn from the open end rotor spinning machine at a constant rate of speed. As a result of changes in mass of the yarn created by... | 03/07/1978 |
| 4011102 | Water-level regulating device This invention relates to a device for regulating the water level in apparatus for treating an insulated electrical conductor, which device comprises two or more gates actuated by a control signal for filling and emptying the apparatus, a first control ci... | 03/08/1977 |
| 3937980 | Printed wiring circuit guard ring When a conventional printed wiring board is subjected to a harsh environment, leakage can develop between adjacent conductors over a period of time. If high impedance circuits are employed on the board, such leakage can adversely affect circuit performanc... | 02/10/1976 |
