Bizarre Patents
A method to tenderize meat with an explosive shockwave.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7408274 | Control and operating condition monitoring of dual series switch contactors for electric motor or other electrical load A circuit for controlling at least two power switches that are series connected between a source of electrical power and an electrical load, for energizing the load in response to a signal at a control input. The circuit includes a programmed controller having an in... | 08/05/2008 |
| 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 |
| 7211998 | Acceleration sensing apparatus A collision sensing apparatus includes an acceleration sensor, first and second connector terminals, reference connector terminals and leads. The acceleration sensor is shaped into a square form. First and second contacts are provided in two diagonally opposed corne... | 05/01/2007 |
| 7106063 | Axially constrained RF probe coil An NMR resonant structure is formed of axial conductors (54a, 54b, 54c, and 54d) and end members (50,51), supporting said conductors to form a coil structure (8) of desired electrical topology whe... | 09/12/2006 |
| 7095236 | Synthetic test circuit for circuit breaker testing A method for testing high-voltage alternating-current power switches in a synthetic test circuit has the step of connecting a high-voltage oscillating circuit in parallel to a test switch Bt in a time interval before the current zero of an interruptible h... | 08/22/2006 |
| 7086111 | Electric dental cleaning device The invention is directed to a dental cleaning device. It relates in particular to a handle section of an electric toothbrushing device, with a coupling section for coupling various cleaning tools thereto, a drive mechanism for driving the coupled cleaning tool, and... | 08/08/2006 |
| 6930484 | Supplementary device for a small electric appliance A supplementary device, such as a charging, cleaning and/or diagnosis device, for a small electric device, such as an electric hair cutting or hair removal apparatus or an electric toothbrush, but particularly for an electric shaving apparatus, includes an arrangeme... | 08/16/2005 |
| 6833712 | Differentiating between board-insertion power-on and chassis power-on A system for detecting a board-insertion power-on versus a chassis power-on is disclosed. By using recessed circuit board sense contacts, recessed chassis sense contacts, or equivalent, a circuit can detect when power reaches a circuit board's power contacts before ... | 12/21/2004 |
| 6788213 | Energize to actuate engineered safety features actuation system and testing method therefor A component actuation circuit for an engineered safety features actuation system (ESFAS) includes a plurality of coincidence logic contacts, and a plurality of parallel-connected ESFAS component relays. Each of the coincidence logic contacts closes in response to a ... | 09/07/2004 |
| 6766452 | Method of checking the authenticity of an electric circuit arrangement A method of checking the authenticity of a digital electric circuit arrangement is achieved in that a concatenation (6; 8, 9) of at least a few circuit-technical elements (10) of the electric circuit arrangement (1) is formed, which deviates fro... | 07/20/2004 |
| 6621270 | Method and apparatus for automated relay testing In order to assist persons of limited skill or time to test electromechanical or other relays without the need for VOM testing and time-consuming test setup, switching circuits, current sources are used in an automated test set with a stored program which... | 09/16/2003 |
| 6531873 | Methods for discriminating between types of electric appliances connectable to a supplementary device A supplementary device, such as a charging, cleaning and/or diagnosis device, for a small electric device, such as an electric hair cutting or hair removal apparatus or an electric toothbrush, but particularly for an electric shaving apparatus, includes a... | 03/11/2003 |
| 6505136 | Method of testing an evaluation circuit The invention concerns a method of testing an evaluation circuit (10 11), which checks the correct contact of a switch (13) with a testing means (14) in a d.c.-supplied circuit. The testing means (14) includes for example a capacitor (15) in parallel with... | 01/07/2003 |
| 6466023 | Method of determining contact wear in a trip unit A method of determining contact wear in a trip unit of a circuit breaker and a circuit breaker employing such a method are presented. The trip unit includes a microcontroller and associated memories. An algorithm (program) stored in a memory of the trip u... | 10/15/2002 |
| 6456034 | Device for controlling the power supply of an electric starter motor of a motor vehicle and a starter unit containing such a device In a device for controlling the power supply of the electric motor of a starter of a motor vehicle, and of an automobile in particular, a power switch is connected in series with the electric motor to control the motor power. The switch consists of an ele... | 09/24/2002 |
| 6232781 | False-closure detection device for electrical consumers Electrical consumers receive load current from a supply voltage via two or more power switches. A false-closure detection device includes a measuring device and a diagnostic device for the detection of faults. The measuring device is connected parallel to... | 05/15/2001 |
| 6188225 | Circuit and method for checking the contacting of a switch or pushbutton In a circuit for checking the correct contacting of a switch or pushbutton in a d.c. circuit, the switch or pushbutton is connected alternatively with at least one input and at least one output of a controller or microprocessor, and a capacitor arrangemen... | 02/13/2001 |
| 6031367 | Somatic cell analyser An on-line somatic cell analyser and a method for measuring a somatic cell count (SCC) are provided. A flow cell is connected to a milking hose and admits a constant volume of sampled milk into the flow chamber. A probe with two electrodes is positioned i... | 02/29/2000 |
| 6023110 | Switching equipment Switching equipment with a contactor (CE) and a circuit breaker (BR) located ahead of the contactor. For detection of welded-together contacts of the contactor, this is provided with means (SC) adapted, a certain time after an opening order to the contact... | 02/08/2000 |
| 6017017 | Process and apparatus for the recognition of the state of a solenoid valve A method and apparatus for the recognition of the state of a solenoid valve supplies an on/off control switching current to the coil of the solenoid valve. A high level of current is caused to flow through the coil for switching the device on, and a reduc... | 01/25/2000 |
| 5978191 | Electrical apparatus for differential protection with a test circuit A trip device comprising a differential current detection transformer, a trip relay of a breaking mechanism of the circuit breaker and a test circuit for checking the operation of the trip device. The relay comprises a fixed yoke bearing a coil and a blad... | 11/02/1999 |
| 5960372 | Method of monitoring electrical wear on selector switch disconnectors in a high voltage station The present invention relates to a method of monitoring electrical wear on selector switch disconnectors in a bay of a high voltage station that includes a set of distribution busbars connected to at least three electrical circuits constituted by an inlet... | 09/28/1999 |
| 5801461 | Device for monitoring the operation safety of power switches A device for monitoring the safety operation of power switches, in particular vacuum power switches in medium voltage switchboards. The device has a microprocessor unit that consists of a microprocessor, a microprocessor control and process-oriented stora... | 09/01/1998 |
| 5589482 | Benzo-thiophene estrogen agonists to treat prostatic hyperplasia Benzothiophenes and related compounds of the formula ##STR1## are estrogen agonists which are useful for treating prostatic and diseases, obesity and bone loss in male animals.... | 12/31/1996 |
| 5559438 | Composite safety switch A composite switch is constituted by a series or parallel association of at least two simple switches. Each simple switch includes an element for measuring the current in the simple switch in the case of a parallel association; an element for measuring th... | 09/24/1996 |
| 5451879 | Electromechanical relay monitoring system with status clocking An improved monitoring system which identifies the particular event (contact operation) and therefore the particular electromechanical relay (20, 22, and 24 which operated). This information is output from a MCU (30), along with the relative time the even... | 09/19/1995 |
| 5272441 | Transmission system solenoid controlled actuator fault detection system and method Open-circuit and closed-circuit faults in a solenoid controlled actuator are detected using shunt resistors (R1, R4) across the solenoid (1), a transistor switch (4), and a voltage monitor (7) and/or (14) across one or both of these which can detect a fau... | 12/21/1993 |
| 5020773 | Actuator assembly with permanently mounted monitoring system A monitoring system for use with a conventional actuator system which includes an actuator and control system. The monitoring system comprises a wiring harness including at least three and preferably five ring type current sensors, such as current transfo... | 06/04/1991 |
| 4987556 | Heating cooking appliance with relay testing In a high frequency cooking apparatus including a magnetron, a fan motor, turntable motor, a plurality of relays for controlling them and a microcomputer controlling the relays, the microcomputer is provided with a relay test program. The relay test progr... | 01/22/1991 |
| 4897754 | Switching apparatus There are provided a first switch which is switched to the on state or the off state in association with a displacement of an actuator which causes a displacement by a contact with an object and a second switch which is switched to the on state or off sta... | 01/30/1990 |
| 4764884 | Failure detecting apparatus of a control unit for a vehicle A control unit for use in a vehicle includes a failure detecting apparatus for detecting failures of solenoids which are used for various kinds of controls of the vehicle. The failure detecting apparatus includes a solenoid driving circuit which sequentia... | 08/16/1988 |
| 4672310 | Switch position sensing device for use with valve operators A switch position sensing device gives visual and recorded information as to the relative open and closed position of a monitored switch whether the monitored switch is found within an AC or DC circuit or a dead circuit and without disturbing the wiring o... | 06/09/1987 |
| 4161962 | Circuit for determining the response current of magnetic valves A circuit for determining the minimum operating current of magnetic valves, wherein a current source which delivers an impressed current rising in ramp fashion supplies the field coil of the magnetic valve, with a differentiator for the voltage at the fie... | 07/24/1979 |
| 4127887 | Safety test circuit for combustion control apparatus A safety test circuit for a combustion control apparatus. This safety test circuit is used to check the off-failure of a safety transistor actuating a safety relay which acts to stop the operation of controlled units in the event of mal-combustion or the ... | 11/28/1978 |
| 4092587 | Contact protection test set A test set for testing relay contact protection networks comprising a signal generator coupled to an analyzing circuit and a test connector arranged for enabling the test set to be used for in-circuit testing of contact protection networks. The test conne... | 05/30/1978 |
