Class 310/154.07 - Adhesive

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter wherein at least one permanent magnet is
No. of patents: 36
Last issue date: 04/08/2008

Number	Title	Issue Date
7355498	Construction element for locking ring magnets in bore holes An element for use with technical magnets having a mount, the mount to be located in a borehole having a base or counterbore. The element is disposed to lock the magnet mount in place in the borehole so it maintains an axial position oriented in the borehole as well...	04/08/2008
7211917	Motor with a magnet fixed on the inner peripheral face of a circumferential wall A motor includes a circumferential wall part of a case provided with an opening part on one end side in an axial direction and at least a magnet fixed to the inner peripheral face of the circumferential wall part. At least a part of the outer peripheral face of the ...	05/01/2007
7183683	Inner magnet of a magnetic coupling An inner magnet assembly for a rotary magnetic coupling, the inner magnet assembly having an inner ring body with magnet guides, magnets and an overlying sleeve. ...	02/27/2007
7159295	Method of making a miniature electric motor A miniature PMDC motor 10 has a permanent magnet stator comprising two arcuate ceramic magnets 20 fitted to a can-like housing 11 and circumferentially separated by interdisposed rubber magnets 21 wedging or nipping the ceramic magnets	01/09/2007
7116026	Adhesion structure for motor, having thickness determining means An adhesion structure of a motor that adheres a rotor having a first linear expansion coefficient and a magnet having a second linear expansion coefficient, which differs from the first linear expansion coefficient, with an adhesive agent. The adhesion structure inc...	10/03/2006
7098564	Work piece A work piece according to the invention has caulking tabs that are connected to each other by means of a bridge piece. As a result, the caulking tabs are lengthened, thus permitting better control of the caulking process because the caulking tabs overlap a component...	08/29/2006
7064467	Commutator motor A commutator motor includes a stator and a rotor, and the stator includes a stator yoke and a field magnet. The field magnet is fixed onto the inner peripheral surface of the substantially cylindrical stator yoke. The stator yoke is configured by coaxially stacking ...	06/20/2006
7041173	Spraying bowl, spraying device incorporating such a bowl and spraying installation incorporating such a device The bowl according to the invention is provided with magnetic elements disposed around a male part which is adapted to be engaged in a central channel of a drive member, the magnetic elements forming outer radial flanges with respect to this male part. In the...	05/09/2006
7038343	Field assembly for a motor and method of making same A cylindrical magnet ring assembly having a cylinder magnet flux ring (102) formed with a plurality of inwardly projecting anchors (108); a plurality of permanent magnets (104), wherein the magnet can be formed with step portions (112) in...	05/02/2006
7034427	Selective alignment of stators in axial airgap electric devices comprising low-loss materials An axial gap dynamoelectric machine comprises first and second stators disposed coaxially with an intermediate rotor. The stators are selectively aligned with an axial offset between the positions of their respective teeth and slots. The stators comprise toroidal co...	04/25/2006
6974522	Method and apparatus for mounting a plurality of magnet segments on a back ring A method and apparatus for assembling permanent magnet segments and a back ring wherein a fixture holds segments in circumaxially spaced relationship, adhesive is applied to the segments, externally from pressure sensitive adhesive tape and the fixture then expands ...	12/13/2005
6931713	Methods of making low loss, high frequency composite magnetic material A high frequency, low loss, power, laminated magnetic material includes alternating magnetic plates of low hysteresis loss material and electrically insulating films. The multi-layer structure allows for independently and simultaneously controlling and reducing hyst...	08/23/2005
6903475	Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing A stator assembly for an electric motor includes a stator housing, an expandable flux ring inserted into the stator housing and a plurality of magnets on an inner surface of the flux ring. Overmold material is molded around the magnets in the flux ring, such as by i...	06/07/2005
6831387	Rotating electrical machine with permanent magnets and method of making same An improved rotating electrical machine having permanent magnets and method for attaching the magnets that permits the use of thin, high flux density materials. The magnets and their mounting plate have facing cylindrical surfaces that are spaced slightly apart and ...	12/14/2004
6806607	Electric motor A miniature PMDC motor 10 has a permanent magnet stator comprising two arcuate ceramic magnets 20 fitted to a can-like housing 11 and circumferentially separated by interdisposed rubber magnets 21 wedging or nipping the ceramic magnets	10/19/2004
6563244	Composite-type electromagnet and radial magnetic bearing A composite-type electromagnet for a radial magnetic bearing has four composite-type electromagnet parts. Each part has four electromagnet cores formed of a magnetic material. The cores each have two protruding poles. A control coil is wound around each o...	05/13/2003
6384498	Compact vibration motor A compact motor capable of being reflow-soldered, which can solve a problem of thermal demagnetization of a magnet with a simple structure, has magnets in a housing. At least a part of a surface to which the magnet is attached is separated by an acrylic a...	05/07/2002
5646467	Axial airgap DC motor An axial air gap motor comprising a housing having a first endplate and an opposed second endplate, a stator assembly mounted within the housing, and a rotor assembly rotatable mounted within the housing. The rotor assembly includes an annular disc shaped...	07/08/1997
5264749	Electric motor with adhesively mounted magnet yoke An electric motor having a cylindrical frame with a thickness less than that of conventional electric motors. A tubular inner yoke is inserted in the cylindrical frame and in combination therewith serves as a magnetic path. The total thickness of the cyli...	11/23/1993
5201111	Method of manufacturing an electric motor A method of manufacturing an electric motor for a windshield wiper of motor vehicles is described, in which magnets are held on the housing case by way of an adhesive connection. Thereby the magnet, together with the adhesive, is inserted into the housing...	04/13/1993
5113104	Structured product dynamoelectric machine A structured product family of dynamoelectric machines for use in a plurality of applications has a frame with a closed end, and a set of permanent magnets is adhesively secured within the frame. An armature disposed in the frame for interaction with the ...	05/12/1992
5057730	Structure for locating permanent magnets in dynamic electric machine A dynamic electric machine has a yoke, permanent magnets to be fixed to the inner surface of the yoke and a guide plate disposed in the yoke and capable of guiding tie bolts which are extended axially through the yoke. A structure for locating the permane...	10/15/1991
4935080	Protection and bonding of neodymium-boron-iron magnets used in the formation of magnet assemblies A method of preparing corrosion resistant neodymium-boron-iron magnets is provided. The cleaned magnet is coated with zinc phosphate which neutralizes surface effects of contaminants and rinsed with chromic acid. A relatively large surface area having num...	06/19/1990
4918830	Method of preparing a permanent magnet DC machine A permanent magnet DC machine is prepared by attaching auxiliary magnetic poles having higher reversible permeability than that of main magnetic poles constituted by anisotropic permanent magnets which are to be attached to the inner circumferential surfa...	04/24/1990
4888511	Motor An electric motor which achieves reduced axial height by an arrangement of a motor case which mounts an outer field magnet and which also rotatably supports a motor shaft. A cup shaped yoke fixed to the shaft supports a rotor core and coil. A commutator i...	12/19/1989
4661729	Voice coil motor magnet assembly A voice coil motor for a moving storage media actuator has a permanent magnet assembly wherein a radially polarized magnet is formed as sectors, with like sectors of the outer housing which forms a portion of the pole piece assembly. These sectors are the...	04/28/1987
4626724	Waterproof device for electric motor In a waterproof device for an electric motor having a cylindrical motor frame body which is split into a discrete portions in the axial direction of the motor, an annular elastic member is attached onto the motor frame body in a manner to cover the joined...	12/02/1986
4464595	Field system of magnet type D.C. motor having magnetic flux reducing pole pieces In a field system of a magnet type D.C. motor constructed of a cylindrical yoke and a plurality of pole pieces, each of which is made of a permanent magnet member bonded to the inner peripheral surface of the yoke, an improved field system wherein each po...	08/07/1984
4453097	Permanent magnet DC motor with magnets recessed into motor frame A motor frame and stator assembly (20), (27), for a permanent magnet direct current motor is shown which is characterized by accommodating a larger and more powerful armature (12) relative to the interior and exterior dimensions of the frame (20). The ass...	06/05/1984
4210832	Electric shavers Electric dry shaver comprising a cutting head having at least one movable cutter, an electric motor for driving the movable cutter and electric circuit means for the motor, characterized in that the motor has a stator/rotor assembly of which at least part...	07/01/1980
4155021	Segmental permanent-magnet stator magnet An electric machine includes a flux-return yoke, a plurality of segmental permanent-magnet stator magnets mounted in the yoke with their outer peripheral surfaces engaging the inner peripheral surface of the flux-return yoke, and a wound rotor mounted for...	05/15/1979
4151435	Stator structure using forming curved wafer thin magnets from rare earth-cobalt alloy powders In a preferred embodiment thin curved rare earth-cobalt magnets supported on the interior surface of a steel casing are formed by hot isostatic compaction. Rare earth-cobalt powder is magnetically aligned and compacted to at least 65% of the theoretical d...	04/24/1979
4110645	Electric motor An improved yet relatively inexpensive motor is provided by mounting commercially-available magnets together with pole pieces to the interior surfaces of the housing of a motor. The pole pieces are then shaped in part, in situ, so as to form a cylindrical...	08/29/1978
4023057	Electric motor field magnets Compound magnets for motor stators have a laminated structure that includes thin, flexible magnets made from permanently magnetizable particles, such as barium ferrite, that are embedded in a flexible matrix, such as rubber. Various laminated arrangements...	05/10/1977
3984711	Variable reluctance step motor with permanent magnets Permanent magnets are interposed within the circumferential spaces between the circumferentially spaced pole pieces of the stator of a variable reluctance step motor. The magnets are magnetized in a circumferential direction and serve to increase the dyna...	10/05/1976

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Class 310/154.07 - Adhesive