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Class 335/274 - With armature-biasing means or bias-adjustment means


Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter including significant details of the armature
No. of patents: 132
Last issue date: 06/29/2010


1        
NumberTitleIssue Date
7746202Magnetic actuating device
The invention relates to a magnetic actuating device containing a reference element and an adjusting element which is movably disposed between first and second end positions with respect to the reference element. The reference and/or adjusting elements contain a mag...
06/29/2010
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
7316289Electro-acoustic transducer and method of manufacturing transducer
An electro-acoustic transducer includes a tone generator, a vibrator, and a case. The tone generator includes a diaphragm, and a voice coil joined to the diaphragm. The vibrator includes a magnetic circuit having a magnetic gap at which the voice coil is positioned,...
01/08/2008
7315230Adjustable solenoid
Embodiments of the present invention provide solenoid plungers, solenoid actuators, and solenoid-actuated mechanisms, that provide for an adjustable stroke, adjustable rated force, and adjustable plunger extension that overcome the problems and issues associated wit...
01/01/2008
7123120Solenoid
Provided is a solenoid which is easier to assemble and which is improved in terms of operability. The solenoid is provided with a snap ring 22 which helps to integrate the molded coil 2 and the solenoid main body 3 into one, whereby it is possib...
10/17/2006
7119789Haptic interface including clutch control
A user can selectively engage some part or all of the haptic display of a haptic interface device to produce an enhanced interaction with an environment with which the user interacts using the haptic interface device. Further, the haptic interface device can be impl...
10/10/2006
7061350Electromagnetic relay with a triple contact bridge
The invention relates to an electromagnetic relay with an electromagnetic coil for exciting a magnetic field and an iron circuit for guiding the magnetic field, wherein the electromagnetic coil surrounds at least part of the iron circuit and the iron circuit compris...
06/13/2006
7019238Stalk switch
A stalk switch having a simplified structure and wide general-purpose applicability is provided. The stalk switch comprises an operating lever 4 manually operated by an operator, a supporting member 2 for rockably supporting the operating lever 4
03/28/2006
6975191Resettable switching device
A resettable switching device, e.g. a relay, comprises a fixed contact (18) and a movable contact (28). A solenoid (12) is fixed relative to the fixed contact and a ferromagnetic plunger (20) carries the movable contact. A spring (24
12/13/2005
6918571Solenoid operated valve assembly and method of making same
A soleniod operated valve has an operating rod attached to the armature with one end of the rod contacting the end of a valve member for effecting movement thereof upon coil energization. A lower bearing is disposed in a lower flux collector adjacent one end of the ...
07/19/2005
6915938Method and apparatus for reducing component vibration during inertia welding
A damper for reducing vibration in a least a portion of a component during inertia welding. The damper includes a generally annular body having a spiral slot formed therein. ...
07/12/2005
6838965Electromagnetic actuator and method for adjusting said electromagnetic actuator
An electromagnetic actuator includes two electromagnets spaced apart from one another, an armature that is movable back and forth by magnetic force between the electromagnets against the force of two respectively counteracting springs, and setting means for adjustin...
01/04/2005
6833778Electromagnetic switch and starter using the same
An electromagnetic switch includes a contact holding member connected to a plunger in order to hold a first movable contact. The contact holding member is disposed outside a switch case covering a periphery of an excitation coil. A return spring pushes the plunger b...
12/21/2004
6831539Magnetic microactuator for disc with integrated head connections and limiters drives
A microactuator design and fabrication method for an improved magnetic microactuator incorporating mechanical stroke limiters and integrated connections between the flex on suspension and slider. The stroke limiters, also referred to as bumper system, and integrated...
12/14/2004
6778049Apparatus and method for changing the dynamic response of an electromagnetically operated actuator
An apparatus for use in components such as servo-valves, regulators and injectors for stabilizing system oscillations. The apparatus includes an armature having at least one groove formed on an exterior surface thereof; a sleeve, the armature being movably disposed ...
08/17/2004
6674352Moving-coil electromagnetic actuator, particularly for a control valve, with resilient element incorporated in the coil
An electromagnetic actuator, particularly for a valve for controlling the injection of fuel or fuel oil is described and comprises: a fixed permanent magnetic core, and an electrical control winding which is disposed in the magnetic field generated by ...
01/06/2004
6667675Adjustable magnetic trip assembly for circuit breaker
An adjustable magnetic trip unit for a circuit breaker includes a torsion spring which applies a bias force to the plunger of a trip solenoid. The torsion spring is mounted on a driven bevel gear and wound by an adjustment knob coupled to a driving bevel ...
12/23/2003
6608542Switching relay with improved armature spring
An armature for a switching relay having an armature plate and an armature spring. The armature plate is pivotally mounted on the switching relay between an open and closed position. The armature spring is attached to the switching relay by a suspension a...
08/19/2003
6590483Electromagnetic solenoid actuator
An electromagnetic solenoid actuator comprising a cylindrical casing, an electromagnetic coil arranged in the casing, a fixed iron core arranged in the electromagnetic coil, a moving iron core arranged to come in contact with, and separate away from, the ...
07/08/2003
6556113Electromagnetic adjusting device
An electromagnetic adjusting device for automatic transmissions of motor vehicles has an electromagnet having a magnetic coil, a substantially cup-shaped housing which surrounds the magnetic coil and is composed of a ferromagnetic material, the housing ha...
04/29/2003
6448673Controlled high speed reciprocating angular motion actuator
A reciprocating rotary action actuator consisting of a rotor and stator that can be added to a bi-directional rotary motor or galvanometer scanner, where the stator has a ring magnet and a pair of soft iron pole pieces that concentrate the flux of the rin...
09/10/2002
6377145Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance
A vibration actuator includes an electromechanical transducer having a magnetic circuit (1-4) and a driving coil (5), a support frame (9), and a damper (270) elastically supporting the magnetic circuit onto the support frame to flexibly damp the vibration...
04/23/2002
6351201Microelectromechanical switch with braking algorithm
A micromechanical switch having a plurality of stable positions, which can be driven between the stable positions with a minimum of residual oscillation. The low oscillation results from the application of a braking force of specific magnitude and duratio...
02/26/2002
6320487Control device with tailored feedback
A control switch assembly includes a variable and selectively activatable feedback unit. The feedback unit provides tactile feedback to a user of the system depending upon a particular adjustment to be made by manipulating the control switch. In the prefe...
11/20/2001
6265958Electromagnetic relay, joining structure for hinge spring and yoke in the electromagnetic relay, and flux penetration preventing structure
An electromagnetic relay has an iron core, an armature, a coil wound around the iron core, a yoke, a hinge spring, and a joining structure. The yoke is fastened rigidly to the iron core and has an engaging hole and a fitting portion. The hinge spring is u...
07/24/2001
6262498Electromagnetic drive mechanism
An electromagnetic drive is described that exhibits two electromagnets (2, 3) situated opposite one another and an armature (10) between them that can be moved back and forth. The armature (10) is held in an intermediate position by elastic forces and bro...
07/17/2001
6133813Electromagnetic relay
A relay has a leaf spring that is secured to a planar seating section of a yoke leg and/or to the planar seating section of the armature and has an unsecured spring section extending beyond the free end of the yoke leg or, respectively, the armature. In o...
10/17/2000
6067000Electromagnetic actuator upper spring assembly
An electromagnetic actuator 10 includes housing structure 12, first and second electromagnets 14 and 16 disposed in spaced relation in the housing structure, an armature 24 mounted for reciprocal movement between the electromagnets, and a spring assembly ...
05/23/2000
6040750Electromagnetic switching device
A switching device is provided which includes a magnet system having a yoke which is elastically mounted by means of a volute spring. The volute spring permits the yoke to be displaced as far as closure of the magnet system. As a result, it is possible to...
03/21/2000
6037852Magnet damping arrangement
An inexpensive and simple magnet damping arrangement, in particular for contactors with a.c. solenoids, is to be created. The non-switching magnet yoke of an electromagnet system with magnet coil is damped by a single damping compression spring which is s...
03/14/2000
6028499Monophase, short travel, electromagnetic actuator having a good electric power/force ratio
A monophase electromagnetic actuator including at least a ferromagnetic part integral with a member movable along a direction Y, a fixed stator part made of soft magnetic material and including at least on electrical coil, and a thin transversely magnetiz...
02/22/2000
6005459Switching device
A switching device providing highly-reliable, frictionless, adjustment-free operation is described. Comprised of a comparatively small number of moving parts, the various aspects of the invention offer compact, cost-effective, reliable alternatives to the...
12/21/1999
5996628Proportional variable force solenoid control valve
A proportional variable force solenoid valve comprises a non-magnetic housing having a solenoid and a permanent magnet armature movable by the solenoid in response to current applied to the solenoid, a coil compression spring for biasing the armature in a...
12/07/1999
5982257Integral armature retention spring for electromagnetic relays
An electromagnetic relay is provided having a base; a motor assembly mounted on the base, the motor assembly including a coil, a core and a frame; an armature pivotably mounted on the frame; a first electrical contact mounted to the base; a movable elonga...
11/09/1999
5949314Electromagnetic drive for a switch
An electromagnetic drive for a switch, preferably a motor protective circuit-breaker. The electromagnetic drive has a magnetic system, whose movable armature serves to actuate switching contact elements in the switch. The armature is coupled to a transmis...
09/07/1999
5825270Electromagnetic solenoid
The solenoid body of an electromagnetic solenoid having a pair of coil terminals to which an exciting coil is connected is movable together with a stopper plate in the direction of the arrow X and in the direction opposite to the direction of the arrow X ...
10/20/1998
5548263Electromagnetically actuated valve
An electromagnetically actuator is disclosed having an electromagnet, a core element, the core element having a normally biased initial spaced apart first position distal from the electromagnet when the electromagnet is off and a second stop position prox...
08/20/1996
5519268Oscillating system
An electromagnetic oscillating system is disclosed and includes an electromagnet with at least two poles. Each of the poles carry at least one electric excitation winding for connection to an alternating electric field. A rotor is disposed between the pol...
05/21/1996
5513832Variable force solenoid valve
A combined bearing/diaphragm seal for use in a solenoid valve assembly or the like is disclosed which provides a flexible fluid seal between the solenoid sub-assembly and the valve sub-assembly. The solenoid and valve sub-assemblies communicate mechanical...
05/07/1996
5495220Iron core retaining structure of electromagnetic contactor
A structure for reducing impact force due to the collision of a movable iron core (4) against a fixed iron core (3), especially, impact force exerted against a bottom plate of a lower casing (2) where electromagnetic contactor mounting portions are provid...
02/27/1996
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