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8970072 Magnetic spring system for use in a resonant motor  
A magnetic spring arrangement for a resonant motor including a housing, magnets fixed in position at opposing ends of the housing, a magnet positioned within the housing for movement toward and...
8952580 Linear vibration motor  
Disclosed herein is a linear vibration motor including: a stator part; a vibrator part received in the stator part to thereby linearly vibrate; an elastic member having one end fixedly coupled to...
8946947 Electromagnetic linear stepper motor  
A linear stepper motor is used for the displacement of an armature parallel to a stator having N steps. The stator includes (N+2) stator pole pieces which are enclosed by a magnetic guiding...
8866349 Solenoid  
A solenoid includes a stationary member, a movable member being movable relative to the stationary member and spring disposed between the stationary member and the movable member. The stationary...
8823221 Optimized galfenol-type magnetostrictive actuator  
An apparatus and a method for optimizing a Galfenol-type magnetostriction actuator. The method and apparatus includes an elongated Galfenol-type magnetostrictive bar, first coil and a second coil,...
8810083 Electromagnetic drive, drive installation and use thereof  
The invention relates to an electromagnetic drive (11), which is connected or can be connected to an open-loop control device or closed-loop control device (54) and together with the latter can...
8786143 Magnetically actuated reciprocating motor and process using reverse magnetic switching  
A magnetically actuated reciprocating motor utilizes the stored energy of permanent magnets and an electromagnetic field to reciprocally drive a magnetic actuator. A converting mechanism converts...
8729747 Method and apparatus for motional/vibrational energy harvesting via electromagnetic induction  
A method and apparatus for motional/vibrational energy harvesting are disclosed. Embodiments of the subject invention utilize the non-resonant chaotic behavior of a free-rolling magnet to generate...
8704411 Spring-less buried magnet linear-resonant motor  
A spring-less buried magnet linear-resonant motor is provided. The motor includes a buried magnet system and a stator operable to produce an alternating magnetic field exerting alternating axial...
8692397 Mechanism for the conversion of vertical motion to translational or rotational motion  
A mechanism for the conversion of vertical motion to translational or rotational motion includes a substrate, at least one permanent magnet, at least one coil of wire, at least one inelastic...
8692396 Apparatus and method for a hybrid system for harvesting magnetic and electrical energy  
A hybrid system for harvesting magnetic and electrical energy includes a substrate, at least one permanent magnet, and at least one coil of wire equal in number to the permanent magnet. Each...
8680724 Linear generator having a fluid pressure cylinder structure  
A linear generator has a fluid pressure cylinder structure for reciprocating a piston in a cylinder in the axial direction by applying alternately a fluid pressure in a left fluid pressure chamber...
8682396 Vibration module for portable terminal  
Disclosed is a vibration module for a portable terminal that includes a housing, a magnetic moving part movable in a first direction within the housing; an elastic member supported between the...
8680698 Self-contained mechanism for the conversion of vertical motion to rotational/translational motion  
A self-contained mechanism for the conversion of vertical motion to rotational/transitional motion includes a substrate having at least one interior compartment, at least one nonconductive tube,...
8618702 Vibration energy generator  
A vibration energy generator includes a case, a coil, a permanent magnet, and a shield magnet. The case is elongated in one direction and is made from a nonmagnetic material. The coil surrounds...
8613603 Armature for a solenoid actuator  
An armature for a solenoid actuator is disclosed. The armature comprises a first face comprising a recess suitable for receiving a biasing spring in use of the armature; a second face opposite the...
8610320 Linear generator having a fluid pressure cylinder structure  
A linear generator has a fluid pressure cylinder structure for reciprocating a piston in a cylinder in the axial direction by applying alternately a fluid pressure in a left fluid pressure chamber...
8575794 Linear vibration motor having a buffer member  
A linear vibration motor includes: a top cover; a bracket coupled with the top cover to provide an internal space; a vibration unit having a mass body mounted at the internal space and linearly...
8569916 Electrical machine apparatus  
A mover includes a permanent magnet array including permanent magnets magnetized in a perpendicular direction perpendicular to a motion direction of the mover such that magnetic poles having...
8531063 Linear vibrator  
A linear vibrator are disclosed, wherein the linear vibrator includes a housing having a bracket and a case coupled to the bracket to form a receiving space, a spring coupled to an inner face of...
8427016 Linear vibrator  
A linear vibrator includes a casing defining an internal space of the vibrator, a bracket disposed under the casing and having a coil, to which electricity is applied to induce a magnetic field,...
8350394 Energy harvester apparatus having improved efficiency  
An improved vibrational energy harvester includes a housing and at least one energy transducer. In an embodiment, a second mass element is arranged to receive collisionally transferred kinetic...
8344560 Magnetically actuated reciprocating motor and process using reverse magnetic switching  
A magnetically actuated reciprocating motor utilizes the stored energy of rare earth magnets and an electromagnetic field provided by a solenoid to reciprocally drive a solenoid assembly. A...
8324763 Magnetically actuated reciprocating motor and process using reverse magnetic switching  
A magnetically actuated reciprocating motor utilizes the stored energy of magnets, particularly rare earth magnets, and an electromagnetic field to reciprocally drive a magnetic actuator. A...
8310113 Multiple armature linear motor/alternator having magnetic spring with no fringe fields and increased power output  
An electromagnetic, reciprocating linear motor or alternator having at least two armatures that are adjacent along an axis of reciprocation. The armatures have gaps that are linearly aligned along...
8294308 System for providing cyclic motion  
In one embodiment, a system for providing cyclic motion includes a magnetic drive having an electrically conductive coil defining a bore and a magnetic member movable through the bore. A control...
8288898 Linear vibrator having plate-shaped springs  
A linear vibrator is disclosed. In accordance with an embodiment of the present invention, the linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is...
8253281 Energy harvesting apparatus incorporated into shock absorber  
An energy harvesting apparatus, for deployment on a vehicle, comprises a vehicle shock absorber including a dust tube, and a damper tube telescopically mounted within the dust tube and configured...
8203238 Linear motor for linear compressor  
The present invention relates to a linear motor for a linear compressor reciprocating a moving member linearly inside a stationary member to compress refrigerant, and more particularly, to a...
7898122 Quick-action bistable polarized electromagnetic actuator  
The invention relates to an electromagnetic actuator comprised of a mobile assembly, a fixed ferromagnetic stator assembly, at least one electric field coil, and of at least one permanent magnet,...
RE41827 Electromagnetic actuator  
An electromagnetic actuator includes a fixed core supported by a bottom wall of a housing, a movable core arranged opposite to the fixed core via an air gap to drive the movable member, and coil...
7795763 Electromagnetic device for converting mechanical vibrational energy into electrical energy  
An electromagnetic generator comprising two magnets and a coil disposed therebetween, the two magnets being configured to define therebetween a region of magnetic flux in which the coil is...
RE41626 Multiple magnet transducer with differential magnetic strengths  
A dynamic magnet system, particularly useful for electrical generation, employs multiple magnets in polar opposition to each other for individual movement relative to a support structure. The...
7619498 Vibrator  
A vibrator has a cup-shaped casing, a substrate provided to close an upper end opening of the casing, a magnetic circuit assembly provided in the casing, a first suspension and a second suspension...
7593630 Built-in multidriver device for a camera zoom lens  
The built-in multidriver device for a camera zoom lens has an independent driver for each lens of a zoom lens kit, and each driver is integrated into the lens mount. A housing positions each...
7576454 Multiple magnet coil in gap generator  
The present invention is an improved energy harvester or generator based on a yoked magnet array design based on a plurality of magnets arranged into at least two spaced apart linear or circular...
7557474 Electromagnetic exciter  
An electromagnetic exciter includes a first suspension having a cylindrical side wall portion coaxial with respect to a cylindrical wall of a yoke of a magnetic circuit assembly, and a spring...
7554429 Electromagnetic actuator  
A sealing member which seals a sealed space where a movable core of an electromagnetic actuator is arranged, includes: an inner ring portion and an outer ring portion which are respectively...
7554225 Electric motor with a coil arrangement for providing oscillatory linear and rotational movement  
An electric motor for a small-scale electrical appliance, such as a toothbrush or shaver. The electric motor includes at least one oscillatory motor component, a magnet arrangement having at least...
7525203 Back-up electric power generator for electronic components attached to automatic firearms  
A firearm improvement taking the form of a mechanical dynamo installed in an automatic firearm. Several components either replace certain parts of the firearm or are added to the firearm. In...
7332846 Damping device  
A damping device for damping speed irregularities of a rotating shaft includes an armature having at least one armature part made of a non-ferromagnetic, electrically conductive material. An...
7255290 Very high speed rate shaping fuel injector  
A very high speed injector permits injecting high pressure diesel oil directly into a diesel engine combustion chamber. The very high speed permits almost arbitrary rate shaping, minimizing...
7202578 Electromagnetic drive device  
An electromagnetic drive device comprises a drive part (10) arranged to be reciprocated in the stroke direction (H) and possessing a circular or oval cross section, said drive part having a...
7150606 Electromagnetic fuel pump  
An electromagnetic fuel pump, including a pump, an electronic control circuit board assembly (PCB) and electromagnetic coil operatively arranged to operate the pump, and, a housing arranged to...
7078833 Force motor with increased proportional stroke  
The force motor of the present invention controls the local magnetic field through a uniquely designed mechanical structure of the internal components. The mechanical structure divides the...
6936937 Linear electric generator having an improved magnet and coil structure, and method of manufacture  
Linear electric generators include stationary windings and armature magnets arranged to reciprocate axially relative to the windings, or stationary magnet structures and movable windings arranged...
6921983 Electric generation device  
A electric generation device and a method for using the same is provided. The electric generation device has a unique configuration that allows the device to generate electrical energy from the...
6861772 Multiple magnet system with different magnet properties  
A dynamic magnet system, particularly useful for electrical generation, employs multiple magnets in polar opposition to each other for individual movement relative to a support structure. The...
6853100 Linear actuator and a pump apparatus and compressor apparatus using same  
A linear actuator includes a first yoke part, a second yoke part opposing the first yoke part from a direction perpendicular to the axial direction thereof, an intermediate yoke part forming a...
6849971 Drive devices for interrupter units in power supply and distribution switchgear  
Drive devices for switchgear interrupter units, having movable contact pieces that can be controlled by solenoid drives are described. The drives of the movable contact pieces being controllable...

Matches 1 - 50 out of 237 1 2 3 4 5 >