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Class 335/220 - With magneto-mechanical motive device (e.g., electromagnet with armature)


Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter including one or more armatures operated
No. of patents: 205
Last issue date: 03/19/2013


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NumberTitleIssue Date
8400242Park lock solenoid
A solenoid for a park lock mechanism wherein an annular frame has a reduced diameter at one end and receives a bobbin with a coil wound thereon with the bobbin projecting outward of the coil at one end and defining an integral bearing positioned in the one end of th...
03/19/2013
8350651Oil immersed solenoid
An oil immersed solenoid capable of easily and quickly removing air and air bubbles in oil in a space accommodating a movable core and preventing the air and the like from accumulating in the space. In an oil immersed solenoid in which a movable core is accommodated...
01/08/2013
8258904Magnetic latching solenoid and method of optimization
A magnetic latching solenoid having a coil assembly, a ferromagnetic core slideably fitted to linearly translate upon excitation of the coil assembly by a pulse of electric current, a stationary electromagnetic pole positioned in line with the ferromagnetic core, at...
09/04/2012
8248195Flat electromagnetic actuator
A flat electromagnetic actuator includes a solenoid, a shaft at the center thereof, first and second bearings, a projecting supporting part, a movable core having an annular projection, a cylindrical yoke, a coil bobbin, a coil and a cylindrical housing whose top is...
08/21/2012
8154370Linear solenoid
A linear solenoid includes a plunger to slide in an axis direction, and a stator core. The plunger includes a magnetic base, and a nonmagnetic plating layer defined on the magnetic base. The stator core has a first blocker arranged between a first magnetic core and ...
04/10/2012
8134436Linear solenoid
A linear solenoid includes a biasing portion to bias a ring core onto a bottom of a cup-shape yoke in an axis direction. The ring core has an attachment portion to which the biasing portion is attached, and the attachment portion is located only on an outer circumfe...
03/13/2012
7876186Electronically actuated apparatus
An electromagnetic actuator having an annular pole piece and an annular armature with surfaces formed thereon through which a magnetic flux passes. The armature is axially movable relative to the pole piece between a first position and a second position. Magnetic fl...
01/25/2011
7876185Electromagnetic switch
An electromechanical switch may be actuated in a plurality of modes. A base portion of the electromechanical switch includes first and second electrical ports adapted to be electrically coupled in a plurality of modes. A first electromagnetic coil defines a longitud...
01/25/2011
7852182Pendulum drive system for personal care appliances
The actuator (10, 90) of a personal care appliance, such as a toothbrush (11), which includes a housing member (12), a double E shaped yoke assembly (14, 52) with two electrical coils (36, 38) wound around the opposing E shaped sec...
12/14/2010
7825758Solenoid assembly
A solenoid assembly for use in connection with a housing and valve body is provided. The assembly includes a magnetic coil, a magnetic pole piece, an operating rod, a magnetic armature, and at least two bearings positioned between a portion of the magnetic pole piec...
11/02/2010
7764154Electronically actuated apparatus using solenoid actuator with integrated sensor
An electromagnetic actuator having an annular pole piece and an annular armature with surfaces formed thereon through which a magnetic flux passes. The armature is axially movable relative to the pole piece between a first position and a second position. Magnetic fl...
07/27/2010
7710225Actuator
The present invention provides the actuator, which is capable of preventing biased abrasion by lowering a surface pressure at a contact portion of a movable element with a guide surface and increasing a movable range, in which a specified output force can be gained....
05/04/2010
7688169Long-proportional-stroke force motor
A long-proportional-stroke force motor which outputs force proportional to the exciting current. The motor has a magnetic circuit wherein a non-magnetic spacer is positioned axially between a magnetic guide and a magnetic sleeve. An armature moves within a central o...
03/30/2010
7602270Actuating magnet
An actuating magnet is disclosed comprising an actuating means (2) for exerting a tensile or pressure force on a target element that is to be moved, switched, or latched or unlatched, and comprising a latching means for latching the actuating means (2)...
10/13/2009
7579935Actuator
An actuator has a resilient shape memory member 1 with superelasticity, a magnetic body 2, and a magnetic field generator 3. At least one of the magnetic body 2 and the magnetic field generator 3 is fixed to the resilient shape mem...
08/25/2009
7511597Actuator structure and actuator block electronic device using the same
The main body of the actuator structure is generally formed into a “pitchfork”shape. The middle bar of the pitchfork forms a Y-bend at its forward end. The Y-bend is disposed so that each tip of the bend is adjacent to the outer bar on each side of the pitchfork...
03/31/2009
7423505Actuator
An actuator has a resilient shape memory member 1 with superelasticity, a magnetic body 2, and a magnetic field generator 3. At least one of the magnetic body 2 and the magnetic field generator 3 is fixed to the resilient shape mem...
09/09/2008
7414502Harsh environment coil-actuator for a cartridge type valve
Illustrated is a cartridge type solenoid valve with a coil-actuator structure which employs O-ring seals to inhibit harsh environment entry into the coil-actuator and allows for metal to metal contact with the frame to increase the flux density and path for flux whe...
08/19/2008
7414504Laminated solenoid plunger for solenoid assembly
A solenoid plunger for use in solenoid driven multi-line embossing systems is constructed of magnetic steel laminations that are attached to a center block which is machined to mount a solenoid shaft and anti-rotate pins. The laminations are attached to the center b...
08/19/2008
7367542Electromagnetic valve
An electromagnetic valve with improved performance includes a solenoid coil 4, and a rod arranged on an axis of the solenoid coil 4 for movement in an axial direction thereof. A plunger 18 is fixedly attached to an intermediate portion of the ro...
05/06/2008
7352267Cylindrically shaped superconductor component and its use as resistive current limiter
The present invention is directed to a cylindrically shaped superconductor component particularly useful as resistive current limiter composed of a cylindrical superconductor body, in particular of high temperature superconductor material, provided vertically to its...
04/01/2008
7332846Damping 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 exciter configured to permeate the armature part in at least some regions w...
02/19/2008
7330093Alignment apparatus, exposure apparatus, and device manufacturing method
An alignment apparatus moves an X-Y slider together with X and Y beams. Electromagnetic guides (electromagnetic mechanisms) are interposed between the X-Y slider, the X beam, and the Y beam. The electromagnetic guides include alignment and acceleration electromagnet...
02/12/2008
7327048Hybrid gas turbine engine starter-generator
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine includes a conventionally wound main stator that is selectively configurable as a multi-pole AC stator and a mul...
02/05/2008
7319374Moving magnet actuator
An apparatus includes an electromagnetically conductive assembly including a first member having a first end and a second end and a second member disposed between the first end and the second end of the first member. The second member and the first end of the first ...
01/15/2008
7316514Light controller and image pickup device including the same
A light controller includes a substrate that has an optical path opening; at least a pair of blades that is reciprocally supported on the substrate and opens and closes the optical path opening; and a driver unit that drives the opening and closing of the pair of bl...
01/08/2008
7303177Actuator arrangement and fuel injector incorporating an actuator arrangement
An actuator arrangement for use in a fuel injector of an internal combustion engine includes an inner core (30) comprising a plurality of laminates (30a) and a first outer pole (32) for receiving at least a part of the inner core (30
12/04/2007
7288861Inertial actuator with multiple flexure stacks
An inertial actuator for active vibration control utilizes a single cylindrical actuator module of the “voice coil” type. A moving armature assembly, including a soft iron shell with a tubular sleeve coaxially surrounding a core with two permanent magnets and co...
10/30/2007
7283027Electric switching device, relay, socket and electric apparatuses comprising such a device
Switching device comprising a contact block having a fixed part connected to at least one electric terminal and having at least one electric contact zone able to be in contact with a contact zone of a movable part, an actuating device enabling the movable part to be...
10/16/2007
7280019Single coil solenoid having a permanent magnet with bi-directional assist
A single coil solenoid includes a permanent magnet with bidirectional assist capabilities. The solenoid includes an armature that during de-energization of a single coil of wire is attracted to the permanent magnet thereby maintaining a hold position and during ener...
10/09/2007
7276866Moving control apparatus and moving control method
A moving control apparatus comprising: a moving member provided movably at least in one direction; a driver having a movable element connected to the moving member and a stator to displace the movable element; a controller which energizes the driver to cause the mov...
10/02/2007
7264972Method and apparatus for sorting biological cells with a MEMS device
A micromechanical actuator for sorting hematopoietic stem cells for use in cancer therapies. The actuator operates by diverting cells into one of a number of possible pathways fabricated in the fabrication substrate of the micromechanical actuator, when fluorescence...
09/04/2007
7256926Optical deflector
An optical deflector includes a magnet unit, which generates a magnetic field, and a movable plate unit, which is placed in the magnetic field. The movable plate unit has an inner movable plate having a reflecting surface, an outer movable plate, two inner torsion b...
08/14/2007
7245042Auxiliary wind energy generation from a wind power generation apparatus
A wind energy generator has a generator having a shaft extending therefrom, a plurality of blades interconnected to the shaft so as to be rotatable by the action of wind energy, and an elongate chamber cooperative with the shaft such that the chamber rotates relativ...
07/17/2007
7240894Pulse width modulated solenoid
A pulse width modulated solenoid control valve is described, wherein the valve includes a polymer fluid control body. The body includes a segmented fluid flow path for providing strength to the fluid control body assembly. Stand off ribs are provided to improve asse...
07/10/2007
7242118Toroidal-coil linear stepping motor, toroidal-coil linear reciprocating motor, cylinder compressor and cylinder pump using these motors
A toroidal-coil multi-phase linear stepping motor includes a cylindrical housing, an axis coaxially arranged inside the housing, a cylindrical element supported by the axis and an armature fixed to the housing around the cylindrical element through an air gap in the...
07/10/2007
7231797Calking die and calked heel
A calking die for calking a component in a receiving bore, in particular for calking a securing flange in a stepped receiving bore of a valve block of a traction-controlled vehicle brake system, having an end face oriented toward the component, which face can be bro...
06/19/2007
7232016Fluid damper having continuously variable damping response
An improved damping apparatus that utilizes a fluid having a viscosity that may be varied by the application of an electromagnetic field, such as a magnetorheological fluid or an electrorheological fluid, to provide the damping response. The damping apparatus includ...
06/19/2007
7229063Pressure control valve
The invention concerns a pressure control valve for the control of the value of pressure in a hydraulic circuit, especially in a hydraulic circuit of a vehicle transmission, with a valve housing, with a solenoid coil, with an armature component group comprising an a...
06/12/2007
7224507Optical deflector
An optical deflector includes a magnet unit and a movable plate unit. The movable plate unit has an inner movable plate having a reflecting surface, an outer movable plate, two inner torsion bars connecting the inner and outer movable plates, a support located outsi...
05/29/2007
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