Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8183853 | Power network sensor devices and related methods An operation detection device for an overcurrent protection component that detects a transition event between a closed state and an open state of the protection component includes an event sensor positioned at a location selected to allow the event sensor to detect ... | 05/22/2012 |
| 8125214 | Determining electrical current using at least two sensors at a known distance from each other The invention relates to methods and devices for accurately monitoring the electrical current in electrolytic cells used to produce metals, including but not limited to aluminum, or other chemical substances. A plurality of sensors are placed at some distance from t... | 02/28/2012 |
| 8106646 | Sensor circuit Provided is a sensor circuit that is small in circuit scale, but is capable of temperature compensation. A reference voltage circuit (BL1) which compensates a temperature includes only a voltage divider circuit, and hence the sensor circuit is small in circui... | 01/31/2012 |
| 7994772 | Remote transmitter for analogue gauges In a method for converting an analogue measurement indication into electric signals, the angle of rotation of the pointer of an analogue display is contact free detected and converted into a proportional electrical output signal. This is achieved by using an applica... | 08/09/2011 |
| 7977934 | High bandwidth open-loop current sensor Open-loop electrical current sensor (1) for measuring the electrical current flowing in a primary conductor, comprising a magnetic circuit (3) with an air-gap (4), and a magnetic field sensing device (5) positioned at least partially in s... | 07/12/2011 |
| 7936164 | Folding current sensor The invention provides a current sensor that may be folded over a conductor without the need to sever the conductor or thread the conductor through the current sensor. In one embodiment, the current sensor includes an outer body having a first folding portion and a ... | 05/03/2011 |
| 7923986 | Device and method for measuring a current flowing in an electrical conductor A device for measuring a current flowing in an electrical conductor. The device comprises a magnetic circuit coupled to an electrical conductor. The magnetic circuit has an air gap and a magnetic field sensitive component disposed in the air gap to measure a magneti... | 04/12/2011 |
| 7911197 | Arrangement for measuring the current flowing in an electric conductor The invention relates to an arrangement for measurement of a current flowing in an electrical conductor having a magnetic circuit, for coupling to the electrical conductor, wherein the magnetic circuit has an air gap. A magnetic-field-sensitive component is located ... | 03/22/2011 |
| 7911198 | Arrangement and method for measuring a current flowing in an electrical conductor An arrangement and a method are used for measuring current flowing in an electrical conductor with a magnetic circuit that has an air gap for coupling to the electrical conductor. The air gap of the magnetic circuit contains a magnetic-field-sensitive component that... | 03/22/2011 |
| 7855546 | Current sensor having core with magnetic gap In a current sensor having a magnetic gap, a main body is divided into a first case segment having a terminal and a second case segment. An opening is formed in the main body. A magnetic sensor element is mounted on an element mounting portion arranged on a surface ... | 12/21/2010 |
| 7847536 | Hall sensor with temperature drift control Disclosed are apparatus and methodology for providing approaches to remove or reduce thermal drift of the magnetic sensitivity of Hall sensor devices, to improve the stability of resulting signals of interest. Samples of a particular signal or signals of interest ha... | 12/07/2010 |
| 7821252 | Three-phase current sensor A three-phase current sensor for measuring currents (IPH1, IPH2, IPH3) running in three conductors of a three-phase conductor system comprises a first magnetic measuring device (D1) and a second magnetic m... | 10/26/2010 |
| 7816905 | Arrangements for a current sensing circuit and integrated current sensor An electronic circuit for sensing a current includes a circuit board having first and second major opposing surfaces and a current conductor for carrying the current. The current conductor includes a circuit trace disposed upon the circuit board. The electronic circ... | 10/19/2010 |
| 7755347 | Current and voltage measurement device The present invention is directed to a current and/or voltage measurement device that allows a user to easily and safely determine current flow by clamping a semi-permanent wrap-around monitor around the power cable without modifying the cable may comprise a plurali... | 07/13/2010 |
| 7755346 | Mounting structure for current sensor A mounting structure for a current sensor is provided. The current sensor is arranged between a negative terminal of a battery and a grounding unit. The mounting structure includes a battery grounding cable which has one end connected with the negative terminal of t... | 07/13/2010 |
| 7746055 | Current measuring device A current sensor is provided for non-invasively measuring electrical current in an electrical conductor. The current sensor includes a housing having a Hall effect sensor and circuitry for transmitting a signal indicative of the current flowing through the electrica... | 06/29/2010 |
| 7719258 | Method and apparatus for current measurement using hall sensors without iron cores A method and apparatus for current measurement using Hall sensors without iron cores, used to estimate a flowing current in an electric conducting cable are provided by the exemplary examples of the present invention. The method for current measurement using Hall se... | 05/18/2010 |
| 7701197 | Current sensing assembly An electrical current sensing assembly comprises: a conductive input substrate with a generally planar contact surface; a conductive output substrate with a generally planar contact surface proximate and substantially parallel to the input substrate contact surface;... | 04/20/2010 |
| 7679357 | Current sensor A current sensor for measuring an electric current flowing through a conductor includes a ring shaped magnetic core, a bare semiconductor chip, and a case. The magnetic core has a gap and surrounds the conductor. The bare semiconductor chip has a front surface and a... | 03/16/2010 |
| 7659709 | Electric current sensor having housing with rails to insert support board An electric current sensor having a housing, magnetic circuit with a magnetic core, and a magnetic field detector with a detection cell, positioned in an air gap between ends of the core. The core is made of a non-laminated magnetic material, and the magnetic circui... | 02/09/2010 |
| 7642768 | Current sensor having field screening arrangement including electrical conductors sandwiching magnetic permeability layer A current sensor includes a magnetic field sensing element, a first conductor including sandwich structure and second conductor including sandwich structure electrically coupled to one another. The magnetic field sensing element is interposed between the first and s... | 01/05/2010 |
| 7626377 | Hall-effect device with merged and/or non-merged complementary structure A Hall-effect device with a merged and/or non-merged complementary structure in order to cancel stress induced offsets includes an n-type epitaxial Hall element and a p-type Hall element. The p-type Hall element can be implanted directly on top of the n-type epitaxi... | 12/01/2009 |
| 7615986 | Temperature detection function-incorporating current sensor A temperature detection function-incorporating current sensor includes a Hall IC, connector terminals for respectively outputting signals, detected by the Hall IC, to the exterior. The Hall IC includes a magnetism detection portion for detecting a magnitude of a mag... | 11/10/2009 |
| 7612553 | Current sensor having sandwiched magnetic permeability layer A current sensor includes a support structure (12), a magnetic field sensor (11) positioned on the support structure, a primary conductor comprising sandwich (13) including an electrically conducting top layer (13a) and electricall... | 11/03/2009 |
| 7605580 | Integrated hybrid current sensor A sensor arrangement for measuring current is disclosed. The sensor arrangement includes a substrate, at least one Hall element integrated in or arranged on the substrate, a first coil that is spaced apart from a surface of the substrate in a vertical direction, a s... | 10/20/2009 |
| 7583072 | Current sensor for measuring current flowing through bus bar A current sensor for detecting current flowing through a conductive bus bar. A fitting groove is formed in the bus bar. A package is fitted into the fitting groove including a magnetic detection element that detects current flowing through the bus bar. A lead frame ... | 09/01/2009 |
| 7579825 | Device and method for measuring a current flowing in an electrical conductor A device for measuring a current flowing in an electrical conductor that has a magnetic circuit coupled to an electrical conductor. The magnetic circuit has an air gap and a magnetic field sensitive component disposed in the air gap to measure a magnetic field gener... | 08/25/2009 |
| 7570044 | Signal detecting circuit The signal detecting circuit has a first amplifier which amplifies the supplied signals and outputs the amplified signals from first and second output terminals; a switch unit which supplies the signals to the first amplifier such that the polarity thereof is revers... | 08/04/2009 |
| 7545136 | Device for measuring current A device for measuring current comprises a magnetic field sensor for measuring the magnetic field produced by a current I flowing through a current conductor and a yoke of a magnetic material with a relative permeability of at least 100. The magnetic field sensor pr... | 06/09/2009 |
| 7541799 | Method and device for measuring a current flowing in an electrical conductor A device for measuring a current flowing in an electrical conductor having a sensor disposed in the region of the electrical conductor for measuring the magnetic field surrounding the electrical conductor. The sensor includes a magnetic circuit having a first and a ... | 06/02/2009 |
| 7532000 | Method and system for measurement of current flows in fastener arrays A method and apparatus for simultaneously measuring current flows through fasteners in a multi-structure composite joint is provided. The method comprising inserting a printed circuit board between at least two structures, the printed circuit board being etched with... | 05/12/2009 |
| 7528593 | Current measuring device A current measuring device for detecting current flowing in a current path includes a magnetic sensor for detecting a magnetic field and a magnetic sensor for detecting earth magnetism, the magnetic field detecting magnetic sensor and the earth magnetism detecting m... | 05/05/2009 |
| 7459900 | Modular current sensor for modularized servo control system A modular current sensing system for a servo control system that includes a magnetic core with an open center portion and a connection plate that includes at least three wire connectors, wherein the wire connectors are capable of connecting at least two wires electr... | 12/02/2008 |
| 7425821 | Chopped Hall effect sensor A chopped Hall effect sensor topology includes a switched Hall plate, an amplifier responsive to an output of the switched Hall plate and a filter stage responsive to the output of the amplifier and including an anti-aliasing filter and a selective filter that is tu... | 09/16/2008 |
| 7414389 | Low-power battery pack with hall-effect sensor Some embodiments of a method and apparatus to facilitate battery management using a hall-effect sensor. The apparatus includes a hall-effect sensor and a battery management unit. The hall-effect sensor is disposed near the electrical transmission line to detect an a... | 08/19/2008 |
| 7411382 | Current detection apparatus A current detection apparatus includes a magnetic core having a ring shape with a gap and a center opening portion through which a current path is disposed, and a magnetic sensor including a magnetic sensing element such as a Hall effect element arranged in the gap.... | 08/12/2008 |
| 7400132 | Current sensor and method of manufacturing the same A current sensor includes a semiconductor substrate, a ring shaped magnetic core having a center opening and a gap and provided to a surface of the substrate, and a Hall element provided to the surface and placed in the gap of the magnetic core such that a control c... | 07/15/2008 |
| 7375507 | Assembly group for current measurement An assembly group for current measurement comprises a conductor plate with three cuts and a measuring element placed on the conductor plate that has a difference sensor formed from two magnetic field sensors. By means of the three cuts a first and a second conductor... | 05/20/2008 |
| 7365535 | Closed-loop magnetic sensor system A closed loop magnetic sensor system for measuring an input magnetic field from a magnetic field source has a compensation circuit, which can be for example a printed wire board, and a magnetic sensor, such as a Magnetoresistive (MR) sensor, for measuring an input m... | 04/29/2008 |
| 7362086 | Integrated current sensor A current sensor includes coupled inductors that generate an output current responsive to a detected current. The coupled inductor is implemented in an integrated circuit. An integrator circuit generates a sensed voltage responsive to the output current. ... | 04/22/2008 |
