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7613273 |
Apparatus with a moving system and a stationary system
An apparatus includes a first, stationary system, in particular a stator, and a second system which is provided for moving relative to the first system, in particular an armature, a first and...
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7609139 |
Split Florida-helix magnet
An electromagnet having at least one access port oriented perpendicularly to the electromagnet's central axis. The magnet has a conventional helical winding along its central axis. However, at some...
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7593210 |
Permanent magnet bulk degausser
One or more pairs of magnet assemblages ( 14 and 16 ) are provided with magnetized segments ( 21 - 30 ) arranged in a Halbach-like array. The magnet assemblages ( 14 and 16 ) define a gap ( 18...
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7564670 |
Vacuum pump
A magnetic bearing system for use in a vacuum pump including a motor provided with a rotary blade. The magnetic bearing system including a rotary shaft rotationally holding said rotor, a motor for...
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7559311 |
Solenoid operated valve device designed to ensure high responsiveness of valve action
A solenoid-operated valve device is provided which includes a valve, a solenoid actuator designed to be supplied with electric power from a battery to operate on voltage substantially identical...
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7548406 |
Method for utilizing a bulk erase tool to erase perpendicularly recorded media
A method for utilizing a bulk erase tool to erase perpendicularly recorded media is provided. A bulk erase tool having a first polarity erase magnet and a second polarity erase magnet is received....
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7525784 |
Magnetic bearing device
An electromagnet configured to contactlessly support a body includes an excitation amplifier configured to supply excitation current to the electromagnet, a carrier wave generation device, and a...
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7505242 |
Method for applying a magnetic mark to a rotatable article to be positioned and corresponding device
The invention relates to a method for applying a magnetic mark to a rotatable article ( 1 ) to be positioned, to a corresponding device and to a system ( 2 ) consisting of a device for applying a...
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7451719 |
High temperature superconducting degaussing system
A method and apparatus for degaussing a water vessel. The invention involves the use of a light-weight reduced-size degaussing system that comprises a plurality of degaussing coils arranged in a...
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7439832 |
Electrical wiring device switch assembly and combination device with circuit protection component
An electrical wiring device including a plurality of independent switches and a circuit interrupter. In an aspect, two adjacent switches are provided. The user accessible portions of the switches...
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7415971 |
Control circuit for an actuator
In a control circuit for at least one actuator, in particular for a capacitive actuator of an injection system of an internal combustion engine, a control current can be applied to the actuator. ...
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7403367 |
Active vibration insulator
An active vibration insulator includes an electromagnetic actuator, a control-signals generating device, a driver, a calculator, and a judging device. The electromagnetic actuator generates...
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7359174 |
Motion detecting system for use in a safety system for power equipment
A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system...
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7307824 |
Magnetic pole insensitive switch circuit
A switch which is magnetic pole insensitive is described. The switch includes a Hall effect sensor coupled to a threshold circuit which provides an output signal indicative of the proximity of a...
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7304852 |
Inverter apparatus
An inverter assembly including a storage compartment for multiple cables adapted to be releasably connected to the inverter. A body of the inverter assembly includes interior and exterior fins for...
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7292425 |
Magnetic bearing device and turbo molecular pump with the magnetic bearing device mounted thereto
To provide a magnetic bearing device capable of reducing vibration by preventing a deterioration in the control of a rotor shaft due to a variation in the axial position of the rotor shaft, while...
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7269749 |
System for controlling low power mode of TV by using single output pin of microprocessor to send signals to demagnetization circuit and switched mode power supply
The arrangement and the respective display unit comprise a microprocessor, a demagnetization circuit and a switched mode power supply operating in a normal mode and in a low power mode. The...
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7242157 |
Switched-voltage control of the magnetization of current transforms and other magnetic bodies
The magnetic flux of a magnetic body is controlled with voltage pulses from an active voltage source. The voltage pulses are applied to a winding circuit which is magnetically coupled to the...
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7224566 |
Interfaces between semiconductor circuitry and transpinnor-based circuitry
Electronic systems are described including semiconductor circuitry characterized by first signals and all-metal circuitry characterized by second signals and comprising a plurality of transpinnors....
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7212390 |
Electronic control circuit for a starting switch of a motor vehicle
An electronic control circuit for a motor vehicle starter contacter includes a management unit ( 26 ) having:
first means for detecting the open or closed state of the power contact ( 20 ),...
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7211909 |
Monolithic integrated circuit arrangement
A monolithic integrated circuit arrangement containing a substrate, a functional unit formed in and/or on the substrate, and an energy supply unit, which is formed in and/or on the substrate and is...
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7196894 |
Method and a device for demagnetising objects
The method according to the invention for demagnetization is effected in two separate steps. Firstly magnetically hard locations, such as weld seams, pressure locations etc., of an object to be...
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7187532 |
Device and a method for stabilizing a web or a filament of ferromagnetic material moving in one direction
A device and a method for stabilising a metallic object of magnetic material. The metallic object is transported along a transportation path or plane. The plane includes a transportation direction...
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7164569 |
Mechanism for automated permanent magnet degaussing
A bulk degaussing system for the erasure of magnetic storage media by means of permanent magnets. The bulk degaussing system includes a rotatably mounted carousel and an angular displacement means...
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7116540 |
Device for inductively transmitting electrical energy
A device for inductively transmitting electrical energy to at least one mobile load, with at least one primary conductor that extends along a designated path of the load in the form of a conductor...
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7113384 |
Dynamic degaussing system
A dynamic degaussing system includes a magnetic field sensor for generating a sensor signal in response to a sensed magnetic field. The magnetic sensor is coupled to a controller that produces an...
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7110236 |
Magnetic suspension system
Systems are disclosed for holding an object in mid-air under the influence of fixed and variable magnetic forces countering the gravitational pull of the object. These systems can be used for...
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7085119 |
Magnetic pole insensitive switch circuit
A switch which is magnetic pole insensitive is described. The switch includes a Hall effect sensor coupled to a threshold circuit which provides an output signal indicative of the proximity of a...
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7079345 |
Demagnetization of magnetic media for data storage device using gradually reduced magnetic field
Demagnetizing magnetic media for recording data in a data storage device includes placing the magnetic media in a magnetic field at a first strength, and gradually reducing the magnetic field to a...
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7073513 |
Superconducting magnetic control system for manipulation of particulate matter and magnetic probes in medical and industrial applications
A system and method of controlling movement of magnetic material with at least first and second high temperature superconductors at spaced locations. A plurality of solenoids are associated with...
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7064948 |
Electrical properties and uniformity of bulk degaussing coils
A degaussing system for magnetic media is provided, the system comprising an erasing head connected to an LC circuit and the erasing head including an elongated form around which a coil is wound....
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7061741 |
Method for magnetic field reduction using the decoupling effects of multiple coil systems
A method for reducing the magnetic field level in the vicinity of two or more connected reactors wherein each reactor is a magnetic dipole and wound so that currents flow in opposite directions and...
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7050255 |
System and apparatus for assembly level disk erase
A disk erase apparatus for erasing information on one or more disks in a disk drive uses a high strength magnetic field to erase the disks while the disks are in the HDD assembly. The design of the...
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7042692 |
Electromagnetic apparatus drive apparatus
Conventionally, a non-conductive period is provided in a region in the vicinity of zero of an AC power voltage via a voltage detection circuit 14 to turn off reliably. The FET 17 maintains the...
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6922324 |
Remote powering of electrostatic chucks
Substrates such as silicon wafers, flat panel displays, and hard disk drive head substrates are electrostatically gripped using power derived from a physically separated source. Noncontacting...
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6920029 |
Control method for an electromagnetic actuator for the control of a valve of an engine from an abutment condition
A control method for an electromagnetic actuator for the control of a valve of an engine from an abutment condition, in which an actuator body actuating the valve and disposed to move between two...
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6911754 |
Control of electro-magnets
A support actuator 20 comprises an electro-magnet 21 having an input current 22 , provided through a current controller 23 , and which is arranged to generate a magnetic field 24 having a...
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6903640 |
APPARATUS AND METHOD OF USING THE STATOR COILS OF AN ELECTRIC MOTOR TO MAGNETIZE PERMANENT MAGNETS OF THE MOTOR ROTOR WHEN THE SPAN OF EACH STATOR COIL IS SMALLER THAN THE WIDTH OF EACH PERMANENT MAGNET POLE
An apparatus and its method of use enable magnetizing the permanent magnets of an electric motor rotor using the winding coils of the motor stator when the circumferential width of each rotor...
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6894885 |
Reader/writer and analog switching circuit
The reader/writer of this invention includes a high voltage withstanding amplifier, plural resonance circuits and plural high voltage withstanding analog switching circuits. The high voltage...
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6891710 |
Method for control of a proportional magnet with a hold function
Method for control of a proportional magnet comprising a magnet core, a magnet armature, a magnet coil for operating a control element in a shift valve or a proportional pressure-control valve,...
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6885536 |
Method and apparatus for magnetically generating motion with high precision
An apparatus includes first and second sections supported for relative movement, the first section having a plurality of first portions extending along respective different axes, and the second...
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6850139 |
System for writing magnetic scales
The invention relates to a system for pulse magnetizing high-precision magnetic scales. The system comprises a shaped current conductor ( 1 ) and a pulse current source ( 2 ) that is composed of a...
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6819023 |
Magnetizing apparatus
A circular magnetizer is disclosed comprising circular insulating inset holding pans of axially disposed wires, each pair carrying a current oppositely directed from the adjacent pair, the insert...
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6798632 |
Power frequency electromagnetic field compensation system
The electromagnetic field produced by an electrical device is electromagnetically canceled by a three-dimensional configuration of electrical coils which together provide a box-like enclosure...
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6794889 |
Unified apparatus and method to assure probe card-to-wafer parallelism in semiconductor automatic wafer test, probe card measurement systems, and probe card manufacturing
A planarization gauge assures probe card-to-wafer parallelism in semiconductor automatic test equipment (ATE) used for wafer test, and provides a standard system reference plane during the building...
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6768626 |
Trip system for an electrical switch having a favorable force-path-characteristic
A trip system for an electrical switch comprises first and second magnetic circuits are formed by a yoke and an armature. The second magnetic circuit has a magnetic resistance in a first position...
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6760210 |
Multi-functional system for demagnetizing ferromagnetic objects
The present invention relates to demagnetizing objects in a fusion cake, objects used in vehicle construction, turbines, diesel engines and other equipment. A system of the present invention...
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6750647 |
Magnetizing apparatus and magnetizing method for magnetized pulser ring, and magnetized pulser ring
There is provided magnetizing apparatus and magnetizing method for a magnetized pulser ring, by which magnetic force to which a cylindrical elastic magnetic member is magnetized can be enhanced,...
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6744341 |
Polarizing device for a permanent magnet rotor
A polarizing device includes: a polarizing iron core ( 13 ) facing to a specified number of permanent magnets ( 11 ) among plural unmagnetized permanent magnets ( 11 ) arranged at specified...
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6741440 |
Mechanically pulsed magnetization kit
A magnetization method and apparatus is described as utilizing a pair of mechanically counter-vibrated permanent magnets having mutually facing unlike magnetic poles, and wherein a ferromagnetic...
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