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Class 335/234 - With reversible magnetic flux-type movement (e.g., bistable type)


Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter wherein the electromagnet is energized by
No. of patents: 181
Last issue date: 01/26/2010


1          
NumberTitleIssue Date
7652549Bi-stable magnetic latch with permanent magnet stator
A magnetic latch includes a stator having first and second permanent magnets disposed on either side of a center portion. Each of the first and second permanent magnets has at least two associated poles. A rotor has at least one magnetic region. The rotor is configu...
01/26/2010
7408433Electromagnetically actuated bistable magnetic latching pin lock
A pin lock is movably mounted for linear movement along a longitudinal axis. A magnet, preferably a permanent magnet, is mounted for limited rotation between the pin extended and pin retracted positions. An electromagnet provides a controllable electromagnetic field...
08/05/2008
7352268High intensity radial field magnetic actuator
At least one set of two magnets is provided, at least one of the magnets having an outer magnet portion, a middle magnet portion, and an inner magnet portion. The outer magnet portion has a magnetization pointing in an at least partially axial direction. The middle ...
04/01/2008
7325781Automatic bathroom flushers with modular design
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou...
02/05/2008
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
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
7257432Mobile phone
A mobile phone. The mobile phone comprises a first housing, a second housing sliding on the first housing, a track disposed on the second housing and having a specific shape and a cam element disposed on the first housing, wherein when the second housing slides on t...
08/14/2007
7233220Electrical switching device, relay and electrical apparatus comprising same
The electrical switching device comprises at least a first part comprising at least a first magnetizable element and a first contact zone associated with said first magnetizable element, and at least a second movable part comprising at least a second magnetic elemen...
06/19/2007
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
7221248Solenoid with noise reduction
A solenoid having a housing and a coil disposed in the housing for generating a magnetic field when an electric current passes through the coil. A center pole is disposed within the coil, and the center pole is made of a ferromagnetic material. A rod assembly is mov...
05/22/2007
7198297Impact absorbing type steering column apparatus
An impact absorbing type steering column apparatus provided with a collision energy absorbing device for absorbing an energy of a secondary collision of an occupant upon a collision of a vehicle comprises an energy absorption quantity adjusting device for changing a...
04/03/2007
7188822Enclosures for automatic bathroom flushers
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou...
03/13/2007
7182051Electromechanical valve actuator for internal combustion engines and internal combustion engine equipped with such an actuator
An electromechanical valve actuator for internal combustion engines, equipped with a polarized electromagnet and with a magnetic plate switches between a first position close to the electromagnet and a second position remote from the electromagnet, the switching tim...
02/27/2007
7156363Bathroom flushers with novel sensors and controllers
A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl...
01/02/2007
7142078Magnetic levitation actuator
A magnetic actuator including a mobile magnetic part, a fixed magnetic part, and a mechanism for triggering displacement of the mobile magnetic part relatively to the fixed magnetic part. At least two amagnetic supports, placed in different planes, delimit a gap bet...
11/28/2006
7102475Magnetic actuator
A magnetic actuator includes a first yoke, an armature which is provided inside the first yoke and made movable in reciprocating motion along a first direction inside the first yoke, first and second coils fitted inside the first yoke, a pair of second yokes affixed...
09/05/2006
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
7088207Electrical switching device for fault-current, overcurrent and short-circuit current position
An electrical switching device for fault-current, overcurrent and short-circuit current protection, has a contact point in a current path and a switching mechanism for permanently opening the contact point. The switching device further has a configuration for detect...
08/08/2006
7074150Differential gear mechanism
A differential gear mechanism includes a rotatable case driven by torque from an engine, a differential gear set housed in the case for differential distribution of the torque to a pair of output axes, comprising a first clutch, an annular plunger movable in a direc...
07/11/2006
7069941Electronic faucets for long-term operation
An electronic faucet (10) mounted on a countertop (12) includes a housing, at least one fluid inlet line (24a, 24b) extending into the housing, a fluid outlet (46) from the housing, a solenoid (142, 143) for op...
07/04/2006
7064556Frequency rectification tool for shorter waveforms
A method of detecting a signal (S) of interest contained within a waveform (F) comprised of a plurality of signals within a frequency spectrum, as well as random noise. After first detecting the waveform, a determination is made as to whether the duration (Td) of th...
06/20/2006
7053742Electromagnetic actuator having a high initial force and improved latching
An electromagnetic actuator is provided that comprises a housing, a solenoid coil, and an armature. The armature is movably disposed in an interior cavity defined by the housing. Irregular gaps are formed between the armature and the housing to increase the initial ...
05/30/2006
7026896Relay with a core having an enlarged cross-section
The invention relates to a relay comprising a coil bobbin, a core penetrating the coil bobbin and a yoke. To achieve a high switching force with a low overall height, the cross-sectional area of the core is greater in the region toward the transition to the yoke tha...
04/11/2006
7009479Steering column lock for personal identification card system
The compact steering column lock for a personal identification card system is provided to stably execute a conversion function of engaging or disengaging the maneuverability of a knob and a key interlock function and the like by receiving a control signal from a con...
03/07/2006
6966760Reciprocating fluid pump employing reversing polarity motor
A reciprocating pump includes a drive section and a pump section. The drive section has a reciprocating coil assembly to which alternating polarity control signals are applied during operation. A permanent magnet structure of the drive section creates a magnetic flu...
11/22/2005
6948697Apparatus and method for controlling fluid flow
An actuator base, bobbin, and pole piece form a pocket for an armature that a flexible membrane encloses to form an armature chamber filled with an incompressible fluid. The membrane protects the armature from exposure to corrosive fluids flowing in a conduit. Condu...
09/27/2005
6940376Electromagnet and actuating mechanism for switch device, using thereof
An electromagnet includes a coil, a movable iron core adapted to move on the center axis of the coil, and a stationary iron core provided so as to cover the upper and lower surfaces and the outer peripheral surface of the coil. A permanent magnet is arranged in a ga...
09/06/2005
6935373Electro-magnetically operable device
An electro-magnetically operated device is described in which a magnetisable armature, typically a length of thin naturally resilient mild steel, is sandwiched between, and extends from, two parts of a magentic circuit which contains an air gap into which the armatu...
08/30/2005
6937074Power-up signal generator in semiconductor device
A power-up signal generation circuit includes a first power-up detecting unit, to which an external power supply voltage is applied, for activating a first power-up signal when an increase of the external power supply voltage is detected, a second power-up detecting...
08/30/2005
6933827Actuator, method of manufacturing the actuator and circuit breaker provided with the actuator
In an actuator, coils are kept from being displaced along a y-axis direction as projections of coil bobbins are sandwiched between first and second iron cores along the y-axis direction. Also, the coils are kept from being displaced excessively along x- and z-axis d...
08/23/2005
6924965Electro magnetically-operated device, and a method of operating the same
An electromagnetically operated device has an electromagnet including a magnetic guide having a movable armature and at least one air gap, a magnetizing coil provided on the magnetic guide, the magnetic guide having at least a part formed as an insert of a magnetica...
08/02/2005
6911610Medium voltage switching device
A medium voltage switching device includes an electromagnetic actuation chain and a power supply which provides electric power to the electromagnetic actuation chain. The power supply includes at least a first power supply device which is electrically connected to a...
06/28/2005
6906605Electromagnet system for a switch
An electromagnet system for a switch includes a main magnetic circuit including a magnet yoke and a magnet armature mechanically linked to a contact apparatus. At least one permanent magnet is disposed in the main magnetic circuit for generating a holding force for ...
06/14/2005
6876284High intensity radial field magnetic array and actuator
At least one set of two nested magnetic arrays is provided, each nested magnetic array having an outer magnet, a middle magnet, and an inner magnet. The outer magnet has a magnetization pointing in an at least partially axial direction. The middle magnet has a magne...
04/05/2005
6853100Linear 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 first gap and a second gap, a coil disposed within a space delineated by ...
02/08/2005
6836201Electrically driven bistable mechanical actuator
A mechanical actuator includes an annular electromagnet and a ferromagnetic plunger disposed within a bore of the electromagnet and slidable therein. A first permanent magnet is positioned outside of the bore and in facing relation to a first end face of the plunger...
12/28/2004
6831535Bistable electromagnetic relay
There is disclosed an electromagnetic relay comprising a stationary first member and a second member adapted to move towards and away from the first member such that when the second member move towards the first member an electrical contact is closed. Spring means b...
12/14/2004
6792225Switch and image forming apparatus
A switch of the present invention is featured as one employing: a contact to make and break an electrical circuit, and an electromagnet, both of which are installed in a case, and a handle to make and break the contact by operation from outside ...
09/14/2004
6667677Magnet movable electromagnetic actuator
The invention includes an annular exciting coil 10, a main yoke 12 surrounding a periphery of the exciting coil and having polar teeth 12a and 12b disposed to face each other on opposite end sides of a central hole 11 of the exciting coil, and a cylindric...
12/23/2003
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