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Class 335/256 - Plural coils controlling a single armature


Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter wherein the electromagnet has plural coils
No. of patents: 99
Last issue date: 03/15/2011


1      
NumberTitleIssue Date
7907038Electromagnetic flow control, methods and uses
Actuation for control of surfaces is provided through use of a conducting material comprising electrolyte particles electrically charged with electromagnetic fields in boundary layers. Interactions of the electrically charged particles with electromagnetic fields in...
03/15/2011
7573361Solenoid actuator and biaxial actuator
A solenoid actuator includes a pair of coils and a core body. The pair of the coils are coupled electrically to each other in series. The core body has a pair of magnets and a holding member, and moves with respect to the coils when the pair of the coils apply magne...
08/11/2009
7347383Modular fuel injector and method of assembling the modular fuel injector
A fuel injector for use with an internal combustion engine. The fuel injector comprises a valve group subassembly and a coil group subassembly. The valve group subassembly includes a tube assembly having a longitudinal axis that extends between a first end and a sec...
03/25/2008
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
7301426Electromagnetic actuator
Electromagnetic actuator for operating at least one movable contact of a switch into a switched-on position or a switched-off position. The electromagnetic actuator (1) has a first magnetic circuit for making a movable (3) and a fixed (4) pole b...
11/27/2007
7278447Co-axial solenoid actuator
An actuator assembly comprised of: a first coil and a second coil, each with a bore and a producing a magnetic flux when subject to an electric signal; a tube extending through the bores such that coils are coaxial; a magnetic pole piece within the tube and generall...
10/09/2007
7274279Electromagnetic relay system
An electromagnetic relay system is constituted by containing an electromagnetic relay arranged in a case and including a coil, a movable contact and a plurality of fixed contacts, a positive terminal and a negative terminal formed to project from the case, and load ...
09/25/2007
7225770Electromagnetic actuator having inherently decelerating actuation between limits
An electromagnetic valve actuator system for controlling the operation of a valve in an internal combustion engine comprising a valve having a valve stem with a valve head at one end. The valve is reciprocable along the longitudinal central axis of the valve stem to...
06/05/2007
7222554Shift actuator for a transmission
A shift actuator for a transmission for turning, in a direction of shift, a shift lever support mechanism mounting the shift lever of the transmission, wherein it comprises an operation lever coupled, at its intermediate portion, to said shift lever support mechanis...
05/29/2007
7209020Variable force solenoid
A variable force solenoid is described, wherein the solenoid has a relatively long stroke and a relatively low profile. The solenoid includes an armature with at least one tapered surface and a pole piece with at least one tapered surface. The armature and the pole ...
04/24/2007
7205872Electromagnetic locking system for a safety switch
A locking system (1) for a safety switch includes a read head (2) and an actuator (3), each of which is provided with first or second componentry (10, 14) encompassing electrical and/or electronic components that interact with each other ...
04/17/2007
7191963Fuel injector with hydraulic pin actuation
The injector has a cylindrical body, which houses an injection nozzle regulated by an injection valve provided with a moveable pin, a fuel supply line, an injection chamber communicating with the supply line, housing a lower portion of the pin and delimited below by...
03/20/2007
7190893Fluid heater with low porosity thermal mass
A fluid heater apparatus and method of making same includes a low porosity material, thermally conductive mass. A heat source is disposed in the thermally conductive mass for imparting heat to the mass. Fluid in a flow path through the mass absorbs heat from the mas...
03/13/2007
7157996Electromagnetic switching device
In the electromagnetic switching device, it is possible to miniaturize and have low costs, have quiet operation noise, and also quickly extinguish the arc. The electromagnetic switching device has an electromagnetic actuator with a movable iron core, a pair of fixed...
01/02/2007
7146943Electromechanical valve actuator for internal combustion engines and internal combustion engine equipped with such an actuator
An electromechanical valve actuator for internal combustion engines is equipped with a polarized electromagnet exerting a magnetic action on a magnetic plate that is subject to a mechanical restoring action, which action can compensate for the mechanical action and ...
12/12/2006
7145424Solenoid assembly
What is disclosed is a lifting magnet assembly for a servo valve or control valve comprising a proportional magnet which acts on a valve spool of the control valve or servo valve through a tappet. Between the spool and the proportional magnet a failsafe magnet is pr...
12/05/2006
7116196Starter electromagnetic switch
The starter electromagnetic switch includes a switch coil creating magnetic force to move a plunger for closing the main contact thereof, a switch terminal bolt having a head portion fixed to a switch cover covering the main contact, and a shaft portion to which a s...
10/03/2006
7113064Active device for damping the vibrations of a vibrating element
An active device for damping vibration comprises an actuator comprising a magnetically permeable armature and a coil associated with a magnetically permeable yoke sliding along a displacement axis under the effect of a magnetic field generated by a current conveyed ...
09/26/2006
7093362Method of connecting components of a modular fuel injector
A method of fabricating a modular fuel injector permits the fabrication of the electrical group subassembly outside a clean room while a fuel group subassembly is fabricated inside a clean room. The fuel injector comprises a valve group subassembly and a coil group ...
08/22/2006
7091807Electromagnetic device
An attraction coil, a repulsion coil and a plunger are disposed in a magnetic path of an electromagnetic device. An starting flux generating section is disposed between the attraction coil and the repulsion coil in the magnetic path. A magnetic flux of the starting ...
08/15/2006
7088209Electromagnetic actuator for operating a final control element
An electromagnetic actuator for operating a final control element has at least one solenoid which is arranged in a housing and acts upon an armature constructed of laminations oriented essentially toward control element. The control element may be a charge cycle val...
08/08/2006
7053741Electromagnetic actuator, manufacturing method thereof, and fuel injection valve
A magnetism property of an armature is increased by including a moving core of sintered metal of 1LSS to 3LSS, and a shaft of a ferromagnetic material. By contrast, a stator core contains 0.005 to 0.1 weight % resin powder, whose particle diameter is set to 50 μm o...
05/30/2006
7049915Bistable magnetic actuator
An actuator is described having two fixed magnetic structures, and a mobile magnetic part able to move towards either one of the two ends of the magnetic structures. The actuator can be in the form of a microactuator, and can be used in the fabrication of microrelay...
05/23/2006
7049916Electromagnetic apparatus
An electromagnetic apparatus includes a solenoid having a movable core for being attracted to a fixed core when a coil is energized, a shaft coupled to the movable core for displacement in unison with the movable core, and a valve mechanism having a ball for selecti...
05/23/2006
7044400Solenoid end cap assembly with flat surface
A solenoid end cap assembly having a flat mating surface. The flat mating surface is a single planar mating surface and is designed to mate with a substantially flat mating surface of a valve control body. The solenoid, housed within the solenoid end cap, does not p...
05/16/2006
6983923Flow control valve
A flow control valve utilizing at least one permanent magnet and at least one magnetic coil, wherein one or more permanent magnets or magnetic coils are used to move a movable member in towards and/or away from an inflow port so as to control the flow through the po...
01/10/2006
6960847Electromagnetic actuator and composite electromagnetic actuator apparatus
An electromagnetic actuator with high performance such as high speed and high resolution is inexpensively provided with solutions to problems associated with power supply and leakage flux, which have been involved in the structure of a moving coil type and have been...
11/01/2005
6952524Fluid heater temperature balancing apparatus
A fluid heater apparatus supplies heat to wash fluid via a flow path in a thermally conductive body. A heat source is disposed in the thermally conductive body for imparting heat to the body. Fluid flowing through the thermally conductive body in a flow path envelop...
10/04/2005
6920681Method of preparing an electromagnetic actuator using a substrate
An electromagnetic actuator includes a stationary member, a movable member magnetically coupled with the stationary member with a gap therebetween, and a support member for displaceably supporting the movable member relative to the stationary member. Both the statio...
07/26/2005
6912357Fluid heater
A fluid heater apparatus supplies heat to wash fluid via a continuous, labyrinthian flow path in a thermally conductive body. A heat source is disposed in the thermally conductive body for imparting heat to the body. Fluid flowing through the thermally conductive bo...
06/28/2005
6904668Method of manufacturing a modular fuel injector
A method of fabricating a modular fuel injector permits the fabrication of the electrical group subassembly outside a clean room while a fuel group subassembly is fabricated inside a clean room. The fuel injector comprises a valve group subassembly and a coil group ...
06/14/2005
6870454Linear switch actuator
A linear switch actuator for actuating a movable element within a microwave switch includes a ferromagnetic shield, a coil positioned within, and a movable armature assembly positioned within the coil. The armature assembly is coupled to the movable element and incl...
03/22/2005
6834844Electromagnetic type fuel injector valve
An electromagnetic fuel injector of an internal combustion engine having a plurality of electromagnetic coils for valve driving wound separately on a bobbin in an axial direction. The bobbin has a step difference of the outer diameter so that the bobbin outer diamet...
12/28/2004
6819208Electromagnetic linear actuator with position sensor
A ferromagnetic actuator having, in a housing, a ferromagnetic circuit defining an axial travel interval for an armature (22) of ferromagnetic material for axially driving a rod between two extreme positions in which the armature bears against poles of the fe...
11/16/2004
6792821Shifting device for a transmission
A shifting device for operating the shift lever of a transmission equipped with a synchronizing mechanism in the direction of shift, which comprises a shift actuator for operating the shift lever in the direction of shift, a shift stroke sensor for detecting the shi...
09/21/2004
6774754Dual coil electromagnet using rectilinear cross-section core elements with enlarged heads in a tattoo apparatus
Electromagnetic coils having rectilinear cross-section core elements with an enlarged head end adjacent to a moving armature bar having a rectilinear cross-section are described in a handheld tattoo apparatus. This results in increased vibrational smoothness as sens...
08/10/2004
6768406Electromagnetic device for valve control
The apparatus for controlling valves that move linearly along respective axes comprises a number of actuators that is equal to the number of valves. Each actuator has an armature (22) of ferromagnetic material fixed to a valve push rod (24) and movable...
07/27/2004
6752372Valve magnet
A valve solenoid including a housing having two parts and which can be employed in areas endangered by explosion, a coil, an iron circuit, the coil and the iron circuit being arranged in the housing, and a casting compound introduced into a first part of the housing...
06/22/2004
6731192Solenoid coil positioning assembly and method
A solenoid coil assembly having a first component member that is configured to support a coil and has a pair of terminal pins. The terminal pins are positioned for attachment to a structure such as a circuit board or lead frame. The first component member has pins f...
05/04/2004
6674350Electromagnetic actuator, optical scanner and method of preparing electromagnetic actuator
An electromagnetic actuator includes a stationary member, a movable member magnetically coupled with the stationary member with a gap therebetween, and a support member for displaceably supporting the movable member relative to the stationary member. Both...
01/06/2004
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