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| Number | Title | Issue Date |
| 8050008 | Relay device A relay device includes mechanical relays, a first bus bar, a second bus bar, and a relay drive circuit. The relay includes a coil, a moving contact whose position changes according to whether the coil is energized, a load terminal conductive to the contact and conn... | 11/01/2011 |
| 7372392 | Charge balancing method in a current input ADC A method for charge balancing in a current input ADC including maintaining a low capacitance value at the integrator output node where the capacitance value is independent of the integrator output voltage and operating conditions, generating a first voltage pedestal... | 05/13/2008 |
| 7089736 | Variable nozzle turbo (VNT) solenoid temperature estimator A method of creating a solenoid temperature estimator includes operating a solenoid based on a data point including a plurality of operating parameters and determining a temperature of the solenoid. The method further includes recording steady-state values for the t... | 08/15/2006 |
| 6995682 | Wireless remote control for a winch A wireless winch control system having a wireless remote transmitter for transmitting AM/PWM modulated signals. A processor in the wireless remote transmitter periodically transmits control signals while a forward or reverse button remains pushed. Once the button is... | 02/07/2006 |
| 6873514 | Integrated solenoid system An integrated solenoid system including a single housing containing a solenoid, a controller and one or more electrical connections. The controller includes temperature compensating means and/or voltage compensating means thereby providing predetermined, substantial... | 03/29/2005 |
| 6842325 | Flexible circuit adhered to metal frame of device An electrical device having a heat conductive housing has a flexible circuit board attached to the surface of the housing to control or take readings from the electrical. The flexible circuit board preferably has an adhesive coating on at least a portion of one side... | 01/11/2005 |
| 6617533 | Interlock for a circuit breaker An interlock for two circuit breakers, with the circuit breakers configured in the same electrical circuit and with each circuit breaker having a cross bar and contact assembly. The interlock comprises a pivot pin mounted a spaced distance from the two ci... | 09/09/2003 |
| 6574084 | Electromagnetic repulsion driven switch An electromagnetic repulsion drive switching device in which a contact-closing coil and a contact-opening coil are arranged to confront a conductive repulsive member, and in which a drive current is fed to a selected one of the individual coils from a cap... | 06/03/2003 |
| 6520279 | Current-carrying control device and electric power steering apparatus Current correction control is carried out by control process of a control circuit 13 that temperatures of the electromagnetic relays 18a and 18b are assessed one by one based on the detection temperature by the temperature sensor 18c, when the temperature... | 02/18/2003 |
| 6401976 | Electrically operated viscous fluid dispensing apparatus and method An electrically operated fluid dispenser for dispensing a pattern of viscous fluid onto a substrate during a run mode. The dispenser is turned off and does not dispense the viscous fluid during a standby mode of operation. The dispenser includes a dispens... | 06/11/2002 |
| 6313977 | Circuit configuration for regulating the current fed to an electromechanical component in a motor vehicle A circuit configuration serves to regulate in particular a coil current for a hydraulic pressure regulating valve of a motor vehicle transmission. A current measuring resistor configured as a thick-film resistor and a temperature sensor, that detects a tr... | 11/06/2001 |
| 6262556 | Force motor current control for an electronically controlled automatic transmission An improved force motor current control including feed-forward and feed-back control terms summed to determine a force motor activation for achieving a current command. The feed-forward control term estimates the force motor activation required to achieve... | 07/17/2001 |
| 5844209 | Apparatus to control the cooking temperature of foods Apparatus for control of cooking foods temperature by sensing their temperature with thermistors, which form part of a first electrical circuit that induces a magnetic flux in an electromagnet, a second electrical circuit that induces, in the electromagne... | 12/01/1998 |
| 5645352 | Circuit configuration and method for ascertaining the temperature of a current-regulated electrical coil A circuit configuration and method for ascertaining the temperature of a current-regulated electric coil, in particular the coil of an electromagnetic proportional valve of a hydraulic regulating device, by measurement of an ohmic resistance of a winding ... | 07/08/1997 |
| 5612588 | Electron beam device with single crystal window and expansion-matched anode A vacuum tube electron beam device having a thin, single crystal, electron permeable, gas impermeable membrane for electron transmission and methods for making such a device. Single crystal membranes can have small thickness due to high strength, are high... | 03/18/1997 |
| 5479151 | Electromagnetic door lock with on-board programmable access control An electromagnetic door lock system employs an on-board microprocessor which is mounted in the housing for the electromagnet. The microprocessor is pre-programmed with possible operating parameters which are then selected at the installation site. In one ... | 12/26/1995 |
| 5107391 | Circuit for driving one or more electromagnetic relays which uses minimum power and results in minimum temperature in the relays A circuit arrangement for driving at least one electromagnetic relay provides that all of the excitation circuits can be connected to a constant voltage source in parallel relative to each other and jointly in series with the switching path of an electron... | 04/21/1992 |
| 4975628 | Closed-loop PWM current control for a vehicle transmission force motor A closed-loop PWM current control for force motor applications in which temperature induced impedance variations are compensated for without adversely affecting the transient response of the control. In generating the force motor PWM duty cycle, the contr... | 12/04/1990 |
| 4880596 | Thermionic switched self-actuating reactor shutdown system A self-actuating reactor shutdown system incorporating a thermionic switched electromagnetic latch arrangement which is responsive to reactor neutron flux changes and to reactor coolant temperature changes. The system is self-actuating in that the sensing... | 11/14/1989 |
| 4747998 | Thermally actuated thermionic switch A thermally actuated thermionic switch which responds to an increase of temperature by changing from a high impedance to a low impedance at a predictable temperature set point. The switch has a bistable operation mode switching only on temperature increas... | 05/31/1988 |
| 4541562 | Mixing valve The mixing valve includes a plurality of flow regulating assemblies (A) each of which independently regulates the flow of one of a plurality of fluids. Each flow regulating assembly includes a pressure displaceable structure (22) which is physically displ... | 09/17/1985 |
| 4507702 | Relay controlled load There is provided a control unit for controlling the operation of a fuel valve. The control unit includes a first relay and a second relay. The first relay and the second relay are connectable in series and oppositely actuable. The first relay is actuable... | 03/26/1985 |
| 4078720 | Time variable thermostat The invention is a time variable set point thermostatic device adapted for use in a two-wire circuit of a heating or cooling system without additional wiring. Electric timer means interconnected with a thermostatic switch and starting relay means of a tra... | 03/14/1978 |
| 4007404 | High gain relays and systems The disclosure relates to high gain electrical relays which are operable at very low power levels and which, when arranged in a relay system with impedance matching to an energizing power source, are operable at the low power levels used in energizing int... | 02/08/1977 |
| 3988682 | Voltage ramp temperature controller A temperature control circuitry for use in detecting the temperature of a vice and providing a programming voltage output for controlling a heating apparatus to vary the temperature of the device. The circuitry utilizes a thermocouple as a sensing element... | 10/26/1976 |
| 3950993 | Temperature sensors with improved operating characteristics utilizing magnetic elements Temperature sensors utilizing either one pair or two pair of inductive magnetic elements are disclosed. The inductive elements of each pair are constructed of different magnetic materials so that the permeability of the two elements change at different ra... | 04/20/1976 |
