Class 310/154.14 - Spring clip

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter wherein at least one permanent magnet is
No. of patents: 35
Last issue date: 03/16/2010

Number	Title	Issue Date
7679250	Device for fixing permanent magnets inside the cylinder head of a field winding of an electrical engine The invention relates to a device for fixing permanent magnets inside the cylinder head of a field winding of an electric engine. The inventive device comprises spring clips (12) which are disposed between the permanent magnets in order to ensure the angular ...	03/16/2010
7427817	Small-sized motor having polygonal outer shape A small-sized motor having a polygonal outer shape includes four or more field magnets attached to the inner surface of a motor casing made of metal. A tubular portion of the motor casing is formed into a polygonal tubular shape such that flat side portions equal in...	09/23/2008
7358636	Electric motor having resilient member and apparatus for manufacturing the same An electric motor includes a housing that receives multiple magnets that are circumferentially arranged in the housing. A resilient member has two inserted portions that are respectively inserted into gaps formed among the magnets. For example, four inserted portion...	04/15/2008
7235908	Motor actuator having motor holding arrangement A motor includes a motor housing and a rotor that is rotatably received in the motor housing. Holding portions hold the motor in a manner that limits turning of the motor housing around a rotational axis of the motor while permitting movement of the motor housing in...	06/26/2007
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
7187097	Pump actuation motor A rotor is provided so that a rotor-side end part of a rotation shaft is rotatably supported by a bearing accommodated in a bearing accommodating part provided in a bottom part of a yoke in such a way as to project to a rotor side, and a part of an armature winding ...	03/06/2007
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
6954012	Permanent electric motor with a speed sensor A PMDC motor with a speed sensor has a cup-like deep drawn rear housing. The speed sensor is located at the bottom of the housing and has an annular base plate supporting a coil with a steel pin core. The coil is connected to two terminals of a connector mounted on ...	10/11/2005
6897580	Anti-vibrational holding device for an electric motor The invention relates to an apparatus for vibration-insulated mounting of an electric motor (20), in particular a blower motor, having a first housing part (10), which encloses at least one pole ring (22) and magnets (24) of the electric ...	05/24/2005
6864609	Low noise motor with one-piece frame and torsion flux ring An electric motor has a unitary frame. The frame includes locating structure extending from an end portion thereof. The motor includes a shaft and an armature disposed within at least a portion of the frame and constructed and arranged to rotate the shaft. A commula...	03/08/2005
6836954	Rotor for an electronically commutated motor and improved method for the mass production thereof Rotor for an electric motor that comprises a core (1), segments of a cylinder (5, 6, 7) made of magnetizable materials, a substantially cylindrical retaining wrapper (10) whose end portions are joined to at least a pair of plane elements (8, ...	01/04/2005
6794782	Shackle spring A fastening spring for fastening at least one component accommodated in a housing of an electric motor, in the prior art, has a bending zone which is exposed to strong mechanical stresses. A fastening spring (1, 1′) of the invention has at least a se...	09/21/2004
6737780	Electric motor magnetic flux path structure An electric motor 10 has an armature 12 including windings 14. The armature is constructed and arranged to rotate a shaft 16. The motor includes a commutator 18 and a brush card assembly 20 having brushes to engage the commu...	05/18/2004
6548930	Electric motor An electric motor for a fuel pump wherein fuel flows through the pump, includes spring elements provided for holding magnetic shells in the stator have a face which points toward a rotor and is flush with the magnetic shells. Turbulence in the flow of the...	04/15/2003
6465925	Rotary electric machine having auxiliary poles A rotary electric machine includes a plurality of permanent magnet main poles disposed on an inner periphery of a yoke and a plurality of auxiliary poles respectively disposed between neighboring two of the main poles via magnet fixing members and a plura...	10/15/2002
6215220	Direct-drive model railroad motor A motor comprising an axle adapted to rotate about an axis; a wound armature fixed to and concentric with the axis; two segmented wheel commutators adapted to conduct electricity across a set of tracks and fixed on opposite ends of the axle concentric wit...	04/10/2001
5959386	Permanent magnet DC motor and magnet retention clip A plurality of retention clips are employed in a DC motor for holding permanent magnets at spaced apart positions in the housing against its annular side wall. The DC motor is of the type having a housing formed by end walls secured to the annular side wa...	09/28/1999
5874794	Method for securing magnets to a permanent magnet motor shell and a motor made therefrom A pair of semicylindrical magnet segments are secured against the inner surface of a motor shell of a permanent magnet motor by wedging an elastic locking element into each space between the magnets. Each locking element has an enlarged head portion that ...	02/23/1999
5619084	PMDC electric motor with a magnet spacer A permanent magnet direct current motor includes two annular rigid magnets which are held within a cylindrical casing by a spacer formed of a rigid mild steel insert. The rigid insert is disposed between two free edges of the magnets. An additional spacer...	04/08/1997
5391063	Magnet assembly for electric fuel pump A magnet assembly in an electric motor of a motor vehicle fuel pump includes a tubular ferromagnetic flux carrier closely received in a shell of the fuel pump between a pump at one end of the shell and an end housing at the other end, a pair of arc-shaped...	02/21/1995
5250866	Structure for fixing permanent magnets in motor A fixing structure of the present invention is capable of fixing permanent magnets to an internal peripheral surface of a cylindrical yoke in a short time without producing a positional deviation. The fixing structure has magnet receiving pieces which are...	10/05/1993
5216306	Casing structure for motor A casing of a motor is rendered light and also capable of forming a magnetic circuit in cooperation with a permanent magnet. The casing consists of an outer cylinder and an end bracket each being made of aluminum. An inner cylinder, made of iron and carry...	06/01/1993
4933582	Magnet-retaining structure for motor This invention is directed to a magnet-retaining structure for a motor, which comprises a cylindrical casing, two semicircular magnets inserted in the cylinderical casing, a resilient retainer whose resilient force fixes the semicircular magnets to the in...	06/12/1990
4931681	One-piece support and end cover structure for electric motors A combined support and end cover for electric motors, and for small permanent magnet dc units in particular, which is molded in one piece from insulating plastic material and formed essentially as a flat disk of which the inner surface affords a central s...	06/05/1990
4914713	Rotation detection or speed pickup device for miniature d-c motor In order to pick up in a simple manner which is reliable, and under rough operating conditions, a rotation of the rotor in a miniature motor excited by permanent magnets with magnet segments at a tangential distance with magnet segments distributed at the...	04/03/1990
4881002	Miniature motor A miniature motor comprising a stator having permanent magnets constituting a two-pole field, and a rotor having rotor windings wound on a rotor core of a three-pole construction, in which the rotor core is formed in such a manner that the cross-sectional...	11/14/1989
4851729	Electric motor The motor has a plastic holding member which is a sliding fit in a casing of the motor and which supports at least one pair of segment magnets and brush gear for the motor in a fixed angular position relative to one another....	07/25/1989
4795932	Double insulated motor including a magnet retainer An electric motor including an insulating retainer for securing permanent magnets in position and providing secondary insulation for a double insulated motor. The insulating retainer includes a dielectric tubular body sized to fit within the motor housing...	01/03/1989
4668887	Small motor stator with improved magnet mounting A stator for a small electric motor includes two permanent magnets mounted within a flux circulation frame by a single spring formed of a shaped spring steel rod compressed between the two permanent magnets and urging the two permanent magnets apart and t...	05/26/1987
4636107	Reformed in place resilient retention springs Secure and rapid assembly of magnets or other articles in tubular or other-shaped housings is achieved with bow type compression retainers which are made from reformable spring metal, and are initially formed shorter and higher than their ultimate working...	01/13/1987
4619588	Wet motor gerotor fuel pump with vapor vent valve and improved flow through the armature One set of circumferentially juxtaposed axial surfaces of the motor magnets of a wet motor gerotor pump are separated circumferentially by a tunnel device having a central bridge portion radially just clearing the rotating armature and bounded by a pair o...	10/28/1986
4445060	Electric starter motor with holder for permanent magnets The housing (2) retains six permanent magnets (3-8) which are curved and rest on the inner wall (9) of the housing (2). They are fixed and held in the circumferential position by holder parts (13; 14; 47) located by guide protrusions (11, 12) in the housi...	04/24/1984
4225799	Field magnet assembly A magnet assembly for a permanent magnet direct current electric motor has two arcuate members positioned in a cylindrical frame by a pair of spring clips which maintain the position of the arcuate member within the frame prior to magnetization of the arc...	09/30/1980
4209284	Electric motor-driven two-stage fuel pump A fuel system for a motor vehicle wherein an electric motor-driven two-stage fuel pump has a motor with a cylindrical flux carrier having a pair of segmented permanent magnets disposed therein in a manner to provide a pair of axial fuel flow paths interme...	06/24/1980

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Class 310/154.14 - Spring clip