Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 8174268 | Protective relay monitoring system and method of comparing behavior patterns A system for collecting data and monitoring the operation of electrical circuits, such as branch circuits at a substation is provided. The system collects data from a plurality of sensors coupled to a plurality of electrical equipment associated with a circuit. The ... | 05/08/2012 |
| 8174269 | Abnormal switching monitoring device and abnormal switching monitoring method The present invention relates to an abnormal switching monitoring device and method. A time point when a high-side switch in which a first electrode receives an input voltage is turned on, a time point when a low-side switch that is connected to a second electrode o... | 05/08/2012 |
| 7928734 | Universal voltage monitoring and switching device A monitoring and switching device for use with a towed vehicle includes a relay circuit that has a pair of terminals that are adapted to be connected with another circuit. A detection circuit is in communication with the relay circuit. The detection circuit can dete... | 04/19/2011 |
| 7906970 | Current differential protection relays In the field of current differential protection relays there is a need for improvements in or relating to the protection relays to allow them to accommodate current transformer saturation while maintaining a desired degree of reliability. A method of operating a cur... | 03/15/2011 |
| 7868619 | Method and arrangement for monitoring connections of switch intended for activating safety function A method and an arrangement are disclosed for monitoring connections of a switch intended for activating a safety function, the switch having at least two poles. The arrangement can supply voltages to first sides of two poles of the switch through first connections,... | 01/11/2011 |
| 7834634 | Low-power switch state detection circuit and method and mobile telephone incorporating the same A circuit for, and method of, detecting a signal level on a node and a mobile telephone device incorporating the circuit or the method. In one embodiment, the circuit includes: (1) a switch coupled between a voltage source and the node, (2) a pulse generator coupled... | 11/16/2010 |
| 7557583 | System and method for monitoring an electrical power relay in a hybrid electric vehicle A method and system to monitor a high voltage power relay operable to conduct electrical power from a source to a load, during each vehicle shutdown event. The system includes the electrical relay with a resistive device, electrically connected in parallel circuit, ... | 07/07/2009 |
| 7459910 | Contact welding detecting device for relay A contact welding detecting device includes: a relay including a first contact for permitting and breaking transmission of a first DC input potential to a first output and a second contact for permitting and breaking transmission of a second DC input potential; a re... | 12/02/2008 |
| 7436644 | Switching circuit, switching method, protective device and battery pack A solenoid type switch has at least two driving coils. The driving coils turn off a switch with a current for example an overcurrent that flows in the switch. The driving coils are magnetized or demagnetized by a driving circuit so as to turn on or off the switch. T... | 10/14/2008 |
| 7432721 | Solenoid actuator motion detection A method of determining change in actuator position includes determining a slope of the inductor current with time and determining whether the slope exceeds a first predetermined slope for a first predetermined time, determining whether the slope is less than a seco... | 10/07/2008 |
| 7415377 | Relay testing system and method A programmable system for testing relays and controlling systems is provided. In one embodiment the present disclosure provides a programmable device capable of, for example, testing relays. The device includes a signal generator for generating signals to test relay... | 08/19/2008 |
| 7405917 | Method and apparatus for monitoring and determining the functional status of an electromagnetic valve The present invention provides a method and apparatus for determining the functional status of an electromagnetic valve having a solenoid and plunger including determining the electro-mechanical switching time of a valve based on characteristics of an electrical cha... | 07/29/2008 |
| 7397229 | Switch mode power circuit There is provided a switch mode power supply circuit including at least one inductive component coupled to an associated switching device for cyclically connecting the inductive component to a source of power. The circuit includes a signal output representative of a... | 07/08/2008 |
| 7378849 | Method and apparatus for obtaining spatial information and measuring the dielectric constant of an object Methods and apparatus are provided for obtaining spatial information about an object, and for measuring the dielectric constant of an object. They include placing the object in a cavity and interacting electromagnetic radiation at a plurality of frequencies with the... | 05/27/2008 |
| 7360526 | Method for operating an internal combustion engine In a method for operating an internal combustion engine with an electrically openable and closable fuel injector (18), the injectors are reliably held open in all operating conditions by the fact that the holding current for an open valve (18) is switc... | 04/22/2008 |
| 7298148 | Relay controller A relay controller for connecting a power source includes at least one relay having at least two contacts. The relay controller includes a processing device operable to selectively switch the relay contacts, and a feedback circuit adapted to identify an actual state... | 11/20/2007 |
| 7277012 | Broad field motion detector A motion sensing system device and method which utilize dispersed ultrasonic radiation is disclosed. The system preferably comprises a low profile sensor unit configured to couple to a ceiling position. The sensor unit comprises an ultrasonic transmitter and an ultr... | 10/02/2007 |
| 7265535 | Circuit configuration for providing of a diagnostic signal for a power switching device A circuit configuration providing a diagnostic signal for a power switching device which switches a load has a test circuit, a filter device, a validation device, and a coding device. The test circuit tests the power switching device and generates error symptoms for... | 09/04/2007 |
| 7259565 | Testing an electrical switchgear system There is provided a method of testing an electrical switchgear system. A node in the electrical switchgear system monitors a power line signal and controls a breaker based on the power line signal. The method includes applying an analog signal to the node, and recei... | 08/21/2007 |
| 7253571 | Wireless power supply and method of supplying power A wireless power supply and method of wirelessly supplying power use light to directly supply power wirelessly to an electrical apparatus without a power cable. The wireless power supply includes: a plurality of pressure switches adapted to switch ON/OFF in response... | 08/07/2007 |
| 7248986 | Programmable system for device testing and control A programmable system for testing relays and controlling systems is provided. In one embodiment the present disclosure provides a programmable device capable of, for example, testing relays. The device includes a signal generator for generating signals to test relay... | 07/24/2007 |
| 7242196 | Power supply controller apparatus for detecting welding of contactors A power supply controller apparatus is provided for use in a power supply apparatus including a battery assembly. The power supply controller apparatus includes a controller that controls supplying power to a load from said battery assembly through a capacitor conne... | 07/10/2007 |
| 7239127 | Apparatus and method for inspecting electronic circuits The present invention provides an apparatus and a method for used in a board inspection capable of an inspection of defect in a circuit board with high resolution over a wide range. The method is used for manufacturing a sensor probe comprising layers which include ... | 07/03/2007 |
| 7227732 | Apparatus and method for controlling open/close timing of relay A method and an apparatus measure an actual responsive time for a relay and control the open/close timing for the relay. The apparatus comprises a microprocessor and two conversion units. One conversion unit processes an input sinusoidal signal for the microprocesso... | 06/05/2007 |
| 7212090 | Relay with core conductor and current sensing A relay situated in series between an AC line source and an AC load has a core conductor connected with the fixed N.O. contact, so that load current flows axially through the core of the actuator coil. Alternatively, the fixed N.C. contact may be connected with the ... | 05/01/2007 |
| 7208955 | Power relay or switch contact tester Embodiments of the invention include a test circuit having an auxiliary low power test signal generator, filters, and a detector to test a power switch. The generator sends an auxiliary low power test signal having a different frequency than a power signal for the s... | 04/24/2007 |
| 7208899 | Emergency-stop device An emergency-stop device provided in a robot system, a machine tool or the like, arranged to promptly detect failure of a circuit through which an emergency stop signal is supplied to an CPU, without stopping the robot system, the machine tool or the like, to improv... | 04/24/2007 |
| 7190126 | Daylight control system device and method A system and device for and a method of programming and controlling light fixtures is disclosed. A system in accordance with the present invention includes a stationary controller unit that is electrically coupled to the light fixtures. The stationary controller uni... | 03/13/2007 |
| 7180297 | Protective relay test device A test device for testing relays is provided. The test device includes a chassis and a plurality of generator components removably coupled to the chassis. Each of the plurality of generator components have a signal generator, a CPU to promote test signal generation ... | 02/20/2007 |
| 7177383 | Method and system for safety regulation in nuclear power regulating systems A system and method for monitoring rod moving coils in nuclear power system. The system ensures that these coils are each functioning properly, and thus prevent movement of the other coils when a dysfunctional coil is detected. The method for accomplishing this moni... | 02/13/2007 |
| 7164110 | Diode-based light sensors and methods The present invention provides an illumination management system that includes a first LED that outputs a first signal when exposed to a first spectrum of light, the first signal indicating an intensity of light from the first spectrum; a second LED that outputs a s... | 01/16/2007 |
| 7155362 | Test device for signaling and waveform generation and monitoring A system for generating a signal for testing a relay is provided. The system includes a plurality of argument vector arrays, each defines a digital signal for testing the relay. Each of the argument vector arrays includes a plurality of argument vectors and each arg... | 12/26/2006 |
| 7148694 | Contact impedance test circuit and method A contact impedance test circuit for testing impedance between a first contact element and a second contact element comprising an AC signal source for applying an AC signal voltage to the first contact element, an AC contact voltage being emitted by the second conta... | 12/12/2006 |
| 7137052 | Methods and apparatus for minimizing current surges during integrated circuit testing Structural testing can lead to high and abnormal current surges. Disclosed herein are methods for designing and testing an IC so that current surges therein may be minimized while the IC is being tested. One disclosed way to minimize current surges is by gating out ... | 11/14/2006 |
| 7109720 | Method for determining wear of a switchgear contacts In a switching device, a method and device for determining the wear of the pole contacts (C1, C2, C3) actuated by an electromagnet (20) whose movement is controlled by an excitation coil (21) by the variation of a contact wear dist... | 09/19/2006 |
| 7086358 | Method and device for controlling the speed of the valves of an internal combustion engine A method of controlling the speed of the valves in an electro-hydraulic actuation unit for the valves of an internal combustion engine in which the pressure of the fluid in the hydraulic actuator of the valve is controlled during the final phase of closure of a valv... | 08/08/2006 |
| 7066121 | Cylinder and valve mode control for an engine with valves that may be deactivated A method to select cylinder and valve operational modes in an internal combustion engine with valves that may be deactivated. A simplified method to select cylinder and valve modes is presented. ... | 06/27/2006 |
| 7061101 | Carrier module Carrier module including a carrier module body for seating a semiconductor device on an underside thereof, having a pass through hole from an upper part to the underside the semiconductor device is seated thereon, a housing over the carrier module body, a supplement... | 06/13/2006 |
| 7061325 | Digital compensation for offset and gain correction A system and method for providing digital compensation and correction for an amplifier. The system is configured to provide a digitally compensated representation of a first amplified analog signal indicative of a first parameter based on a digital representation of... | 06/13/2006 |
| 7053624 | Protective relay test device having a hand-held controller A system for testing a relay is provided. The system includes a plurality of signal generators to generate signals to test relays. The system includes a controller to provide at least some inputs for use by at least one of the signal generators to generate the signa... | 05/30/2006 |
