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7598862 |
Methods and apparatus for security device coupling
An apparatus, according to various aspects of the present invention, that couples a provided security device to a provided portal cover and communicating between a first side and a second side of...
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7598835 |
Magnetic sensor, production process of the magnetic sensor and magnetic array suitable for the production process
The present invention aims to provide a magnetic sensor provided with a magnetoresistive effect element capable of stably maintaining a direction of magnetization in a magnetic domain of a free...
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7504921 |
Stepping flexures
An actuator for moving a load has a frame forming a race between two surfaces thereof, at least two elements joined together by at least one flexible member, the elements and the at least one...
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7488369 |
Magnetostriction device
A magnetostriction device is made such that an impregnated composition material, such as phenol resin, a resin in which an inorganic material such as silica is dispersed into a phenol resin, an...
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7463127 |
Magnetoresistive smart switch
A smart switch has a magnetic operator, at least one magnetic sensor located to sense movement of the magnetic operator, and a processor that processes an output of the magnetic sensor so as to...
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7456714 |
Magnetostriction aided switching
A method for reducing a temperature rise of a magnetic material is provided. The method includes applying force to the magnetic material to reduce a dimensional change of the magnetic material...
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7335317 |
Method of preparing polymer composite using unidirectionally solidified giant magnetostrictive material
The present invention relates to methods of preparing a polymer composite using a giant magnetostrictive material, and more particularly, to polymers composite having various improved properties,...
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7323960 |
Electromagnetostrictive actuator
An actuator includes an electromagnetostrictive element that has one end located on a front side and the other end located on a rear side. An output shaft penetrates the electromagnetostrictive...
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7250839 |
Magnetostrictive thin film actuator
Magnetostrictive actuator. The actuator includes a flexible substrate and a magnetostrictive film on the substrate. The shape of the flexible substrate is altered in the presence of a magnetic field.
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7075395 |
Magnetic sensor, production process of the magnetic sensor and magnetic array suitable for the production process
Disclosed is a magnetic sensor provided with a magnetoresistive effect element capable of stably maintaining a direction of magnetization in a magnetic domain of a free layer. The magnetic sensor...
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6702250 |
Magnetostrictive electronic valve timing actuator
An apparatus and method for actuating a valve using magnetostrictive transduction is provided. A ferro-magnetic rod having giant magnetostrictive properties is operatively coupled with a hydraulic...
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6476532 |
Magnetostrictive-compensated core of electromagnetic device
The present invention eliminates vibration of an electromagnetic device, apparatus or machine caused by magnetostrictive and Joule effects. Specifically, the present invention discloses making an...
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6307286 |
Super magnetostrictive actuator
A super magnetostrictive actuator includes: a magnetic field generating unit, at least first and second super magnetostrictive members extensible in a longitudinal direction thereof due to action...
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6300855 |
Hysteresis reduction in giant magnetostrictive materials
A high power magnetostrictive transducer element comprising a material of the formula Tb x Dy y Ho z Fe 2 -w wherein 0.24≤x≤0.28, 0.52≤y≤0.56, 0.13≤z≤0.22, x+y+z=1, and 0≤w≤0.20...
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6192096 |
Magnetostrictive wire control rod position detector assembly
A magnetostrictive wire control rod position detector assembly which will allow nuclear reactor output to be increased, control performance to be improved, and peripheral equipment to be...
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5907269 |
Magnetostrictive clamping device
A magnetostrictive clamping device which includes first and second arm members having respective first and second end portions. The first and second arm members are interconnected to permit...
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5857492 |
Electromagnetic friction lock for a dual axis control devices
A manually operable control device, such as a joystick, includes a plurality of actuators for operating hydraulic valves of a machine. A handle has a sphere received within a cavity formed between...
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5792284 |
Magnetostrictive powder composite and methods for the manufacture thereof
Magnetostrictive powder composite and method for the manufacturing of the magnetostrictive powder composite. The composite comprises magnetostrictive powder grains with chemical composition (RE) x ...
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5745039 |
Remote sterilization monitor
A remote sterilization indicator is described. The indicator allows a sterilization cycle to be monitored without the need to visually inspect the indicator.
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5739600 |
Underwater magnetrostrictive vibration device
Provided is an underwater magnetrostrictive vibration device with reduced signal attenuation and improved in efficiency and sound quality, which has been low due to external noise disturbance. The...
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5703553 |
Magnetostrictive active strut
A magnetostrictive active member configured to withstanding significant bending moments and having a prestress mechanism that is adjustable for maintaining optimal performance of an integral...
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5693154 |
Terbium-dysprosium-zinc and terbium-gadolinium-zinc magnetostrictive materials and devices
Polycrystalline or single crystal magnetostrictive alloys of the formula Tb 1 -x Dy x Zn w (0<x≤0.7; 0.90≤w≤1.10) and Tb 1 -y Gd y Zn w (0<y≤0.4; 0.90≤w≤1.10) and...
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5588466 |
Magnetostrictive transducer
A magnetostrictive transducer wherein a magnetostrictive layer is applied to a flexible element, for example, a flexible beam. The flexible element is deflected by an external magnetic field. The...
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5585772 |
Magnetostrictive superconducting actuator
An actuator in which a magnetostrictor is subjected to magnetic fields produced by a superconducting coil, and the magnetostrictor and coil are maintained at temperatures below the magnetic...
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5565830 |
Rare earth-cobalt supermagnetostrictive alloy
A rare earth-cobalt supermagnetostrictive alloy having a composition represented by the general formula, in atomic fraction: R (Co 1 -x Fe x ) x , wherein 0.001≤x≤0.8, 0.2≤z≤15, and R is at...
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5414397 |
Clamping device for magnetostrictive bodies
The invention relates to an elastic clamping device for at least one body with magnetostrictive properties, wherein a pressure force presses the clamping device against the inner magnetostrictive...
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5396266 |
Kinesthetic feedback apparatus and method
A kinesthetic feedback apparatus and method whereby braking forces are imposed on a hand-movable lever. The lever is either a joystick or a uniplanar lever, and the braking forces are imposed by a...
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5361053 |
Super magnetostriction type actuator
In a super magnetostriction type actuator constructed such that a super magnetostriction rod is extended/contracted by application of a magnetic field from a solenoid coil, and a drive object is...
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5357232 |
Magnetostrictive element
A magnetostrictive element includes a magnetostrictive member, an outer magnet disposed coaxially about, spaced apart from, and surrounding the magnetostrictive member, and a soft magnetic yoke for...
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5172020 |
Magnetic core for AC electrical equipments
A magnetic core employed in AC motors, transformers and the like includes a first core portion formed by laminating silicon steel sheets each containing 3.5% silicon, the first core portion having...
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5101183 |
Magnetostrictive clamp
Apparatus and a method for restraining the movement of members due to magnetic fields in which a clamp made of magnetostrictive materials is used.
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5070316 |
Device for transmission of the movement and force of a high-magnetostrictive body
The invention relates to a special embodiment of a plate which is to be able to transmit movement and compressive force as well as possess soft-magnetic properties with low losses and low...
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5037184 |
Deformable mirror actuator attachment
Oppositely polarized magnets are secured to a deformable mirror and a corresponding actuator. They rely on magnetic attraction to maintain the connection between the actuator and mirror. A reverse...
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4993843 |
Method and device for detecting the temperature to which a solid, a liquid or a gas may have been subjected
The device comprises a transparent tube (1) wherein may slide freely a part (4) at the extremities of which are arranged two small magnetic masses (5,6). The tube (1), closed at both ends, forms a...
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4975643 |
Measurement and control of magnetostrictive transducer motion using strain sensors
Apparatus and method for precisely controlling the movement of a magnetostrictive transducer including an elongated magnetostrictive rod, means for inducing a magnetic field in the rod and...
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4959567 |
Magnetodistortive actuator with adjustable magnetic bias
A magnetodistortive actuator includes an elongated active component of a magnetodistortive material mounted on a support and having a stationary and a movable end portion. At least one permanent...
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4914412 |
Magnetic circuit
A specially designed magnetic circuit which is provided which is intended to magnetize cylindrically shaped magnetic materials (1) in the axial direction. The magnetic circuit comprises a...
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4850716 |
Remotely detectable sterilization monitor
A monitor for detection of temperature and/or steam conditions indicative of sterilization. The monitor comprises means for creating a remotely detectable response upon interrogation by an...
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4845450 |
Self-biased modular magnetostrictive driver and transducer
The drive modules of a magnetostrictive transducer are fabricated from interleaved permanent magnet disks (samarium cobalt) and high-strain, low-permeability magnetostrictive lanthanide alloy...
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4682134 |
Conical, unimpregnated winding for MR magnets
An unimpregnated winding for use in a cryostat of a superconducting magnet is provided comprising a form including a shell having the shape of two truncated cones attached to one another at their...
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4651116 |
Vibration insensitive magnetically tuned resonant circuit
A magnetically tuned resonant circuit having a resonant frequency which is substantially invariant with external applied static and dynamic stresses is provided. The magnetically tuned resonant...
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4644310 |
Actuator system having magnetomechanical cantilever beam formed of ferromagnetic amorphous material
An actuator system comprises a magnetomechanical cantilever beam adapted to be responsive to magnetic fields of various magnitudes. The system provides precise and rapid repositioning of the free...
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4599591 |
Magnetostrictive transducer
A magnetostrictive transducer utilizing magnetostrictive material and a plurality of windings connected to current sources having a phase relationship so as to establish a rotating magnetic...
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4397381 |
Magnetic brakes and clutches
Drum-type brakes and band-type clutches which are activated by expansion or compression, or both, of one or more concentric magnetic members, with conducting windings carrying electric currents....
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4369344 |
Sensitive door edge Wiegand module switch assembly
A sensitive edge 10 for door systems, lifts, doors, or other moving portions of transit vehicles that come into contact with articles or passengers includes a body defining a resilient deformable...
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4158368 |
Magnetostrictive transducer
Improved magnetostrictive materials are combined in a novel arrangement to provide a transducer of the electromechanical type particularly suited for the precise control of fluid flow. An...
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4151432 |
Production of ferrites for magnetostrictive vibrators
A ferrite for magnetostrictrive vibrators is produced by the simple process of press forming a preformed structure formed from starting powder of magnetite or a mixture of magnetite and ferric...
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3961297 |
Electromagnetic anisotropic devices
Devices relying on the Inverse Wiedman Effect. Devices include a current conductive, magnetically anisotropic rod, through which an AC current flows. Wound about the rod is a conductive coil having...
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3959751 |
Electromechanical transducer having circularly magnetized helically wound magnetostrictive rod
Electromechanical transducer comprising a helically wound, magnetostrictive rod that is circularly magnetized. Surrounding said rod is a conductive coil.
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3939448 |
Mechanical magnets of magnetostrictive, remanent, circularly magnetized material
Mechanically controllable magnet made of a magnetostrictive, circularly magnetically anisotropic, circularly magnetized rod. There is no apparent magnetism externally. When rod is twisted, circular...
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