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| Number | Title | Issue Date |
| 4859889 | Dynamoelectric machine A dynamoelectric machine has a housing with generally axially extending radially spaced apart inner and outer circumferential surfaces with a generally annular external rabbet in said outer circumferential surface. An end frame is arranged in a preselecte... | 08/22/1989 |
| 4851731 | Structure of a flat-type brushless DC motor A flat type DC motor applicable for disc drive of an electronic still camera in which vibrations of the rotor axle are prevented without increasing manufacturing costs by providing the magnetic field between the stator and rotor to by asymmetrical so that... | 07/25/1989 |
| 4841183 | Dynamoelectric machine construction and method A dynamoelectric machine or electric motor construction is disclosed in which the motor has a cylindrical shell having a stator core press-fitted therein and positioned axially with respect to the shell at a predetermined position. The stator core has a c... | 06/20/1989 |
| 4827173 | Commutator motor, especially a small motor for motor vehicles In a permanent-magnet-excited commutator motor, especially a small motor for motor vehicles, the short-circuit ring (13) of the stator (12) has soft iron auxiliary poles (16), to attain an inverse speed characteristic. The permanent magnets (15) rest with... | 05/02/1989 |
| 4825114 | Assembly of axial fan motor An axial fan motor comprising a cylindrical bearing boss having therein a bearing mechanism for supporting a rotational shaft of the axial fan motor and a stator core coupled to the cylindrical bearing boss is disclosed. The bearing boss is, at its one en... | 04/25/1989 |
| 4812695 | Annular stator core construction A generator exciter for an A.C. sychronous alternator has a rotor secured to the alternator shaft and a compact high power stator. The stator core is a square laminated core. Eight straight sided poles terminate in a concave end defining a circular rotor ... | 03/14/1989 |
| 4801831 | Electric motor stator support structure and method of manufacturing same An improved electric motor stator support structure and method of manufacture wherein laminations forming the stator are arranged to provide peripherally spaced tongue members extending laterally relative the peripheral sides of the stator, the tongue mem... | 01/31/1989 |
| 4794291 | Permanent magnet field DC machine A permanent magnet field DC machine comprises a rotor and a stator. The rotor comprises an armature core (3), an armature winding (4), and a commutator (2). The stator comprises a yoke (7), permanent magnets (8) disposed on the inner periphery of the yoke... | 12/27/1988 |
| 4764699 | Generator stator retention system An oil-cooled generator (10) is provided having a housing (20) with a gas-filled interior and rotor (46,56) therein. A stator (44,58) associated with the rotor (46,56) is secured to a surrounding sleeve (70',70) by an interference fit and pins (72',72). A... | 08/16/1988 |
| 4758755 | Removable winding cover for unit bearing motor A unit bearing motor typically has an end shield, a stator core mounted within the end shield with the core extending axially out beyond the end shield. The core receives the windings of the motor and a winding cover is secured to the portion of the core ... | 07/19/1988 |
| 4716648 | Methods of securing a stator in an electrical machine A method is provided of securing a stator in an electrical machine which includes a casing, a rotor mounted within the casing and a stator which is axially slidable with respect to the casing. The method comprises the steps of wedging the stator in positi... | 01/05/1988 |
| 4705974 | Dynamoelectric machine A dynamoelectric machine has at least one end frame with a pair of opposite faces and a set of apertures intersecting with the opposite faces, respectively. A stator has a set of beams secured thereto for supporting the end frame against both axial and ra... | 11/10/1987 |
| 4679661 | Modular gearless elevator drive The front endcap (10) and mounting bracket (26) for a motor are unitary for motor interchangeability. The endcap (10) has a disc-like portion (12) and a tubular boss (22) extending therefrom that receives in its bore the motor shaft (44) and bearings (68)... | 07/14/1987 |
| 4663553 | Stator laminated core attachment in an electrical machine A stator laminated core (1) of a horizontal-axis electrical machine is supported by means of at least two parallel bearing plates (3), perpendicular to the axis of the electrical machine and at a distance from each other. In order to minimize vibrations a... | 05/05/1987 |
| 4642884 | Methods of assembling a dynamoelectric machine A method of assembling a set of beams mounted to a stator for a dynamoelectric machine with at least one end frame therefor so as to retain the end frame against both axial and radial displacement with respect to the stator. The beams have at least one ab... | 02/17/1987 |
| 4634909 | Electric machine In a large turbo-generator comprising a laminated stack (6) which has on its outside axial grooves (7) which are distributed over the entire circumference and which is there suspended in a housing (1) by wedges extending in its longitudinal direction, the... | 01/06/1987 |
| 4626725 | Synchronous rotary machine A synchronous rotary machine comprising a stacked stator iron core (21) made of a number of thin plates stacked in the axial direction. The stator iron core forms a part of the outer shell of the synchronous rotary machine. A winding (23) is wound around ... | 12/02/1986 |
| 4602423 | Method of making a stator for an electric multiphase motor An electric multiphase motor with a closed ring housing and a pole piece star which is inserted therein after being wound from the outside, the pole piece star having axially integral pole pieces which are arranged in star-like fashion around a hollow cyl... | 07/29/1986 |
| 4593223 | Bulb generator stator yoke A stator yoke is provided for a bulb generator or motor. The stator yoke includes a cylindrical wrapping plate with flanges connected to the ends of the wrapping plate. Yoke plates are connected to the core. Axial ribs extend through openings in the yoke ... | 06/03/1986 |
| 4587722 | Method of making a dynamoelectric machine stator supporting structure A stator core support structure and an assembly of a stator core in a core support structure, both characterized by having a plurality of stress-relief devices that are mounted at selected areas of high radial rigidity on the core support structure to tra... | 05/13/1986 |
| 4564779 | Dynamoelectric machine stator using cylindrical keybars Keybars for affixing stator core laminations to annular web plates of a stator frame include a cylindrical portion and a dovetail portion. The cylindrical portion is closely fitted within accurately bored axially aligned circular holes in the annular web ... | 01/14/1986 |
| 4564780 | Electrical machine having a quickly releasable stator An electrical motor has a casing 62 and a removable end plate 68. When the end plate 68 is removed the stator 50 can slide out of the casing 62 for servicing or repair without disturbing the rest of the motor in any way. Annular hampered mating surfaces i... | 01/14/1986 |
| 4546282 | Magnetizable core for accommodating electrical conductors in an electrical machine, and a method of manufacturing such a core A core for a stator and/or rotor of an electrical machine comprises at least one strip of magnetizable material which has been bent in an undulating fashion, to define tooth-like projections (1, 2) and grooves (3, 4, 5) lying therebetween, for accommodati... | 10/08/1985 |
| 4538086 | Stator for an electromagnetic machine Electromagnetic machines of the type having circular arrays of permanent magnets arranged on a rotor and a plurality of pole pieces arranged on a stator, requires that a maximum number of pole pieces be arranged around the stator in order to attain maximu... | 08/27/1985 |
| 4536671 | Dynamoelectric machine stator mounting means and method of making same A stator core support structure and an assembly of a stator core in a core support structure, both characterized by having a plurality of stress-relief devices that are mounted at selected areas of high radial rigidity on the core support structure to tra... | 08/20/1985 |
| 4528469 | Compact A.C. machine having plural ventilation ducts An electrical alternating current machine having a stator sheet metal body defining an external contour of a regular n-sided polygon or a circular sheet metal shape. The radial and axial restraint of the sheet metal pack occurs by means of casing walls, t... | 07/09/1985 |
| 4496868 | Electrical machine An electrical machine comprising a cylindrical housing accommodating a rotor made in the form of at least two pole systems having pole projections and interconnected through a magnetic circuit, a stator having at least two stacks of laminations, and an ex... | 01/29/1985 |
| 4469973 | Resiliently suspended stator for a dynamo-electrical synchronous machine The magnetic circuit (6) of the stator is suspended from resilient suspension bars (26) which are welded both to floating stiffening rings (30) that are firmly mounted on the magnetic circuit, and to some of the stiffening rings (20) of the outer sheath (... | 09/04/1984 |
| 4450373 | Apparatus for vibration reduction in dynamoelectric machines This invention provides apparatus for reinforcing an end of a motor housing of a motor of the type having a minimum vertical dimension. The invention accomplishes this objective in one embodiment by extending two axially extending gussets, which normally ... | 05/22/1984 |
| 4433472 | Method for manufacturing a dynamoelectric machine A method for manufacturing a dynamoelectric machine comprises the steps of manufacturing a magnetic frame of polygonal cross section by welding together at their respective ends a plurality of sides, some of which may include projections so that a require... | 02/28/1984 |
| 4426592 | Electrical machine with superconducting inductor and gas cooling of normal-conductivity windings The electrical machine comprises a stator 1 with a superconducting winding 5 disposed in a cryostat 4 and a rotor 7 with a cooling winding 10 disposed on the rotor body. The stator also carries a compensating winding 6. The cryostat 4 is secured to the st... | 01/17/1984 |
| 4425523 | Core spring support system for a dynamoelectric machine A core support system is described by which the core structure and frame structure of a dynamoelectric machine can be manufactured independently in parallel operations and later assembled. The support system provides radially resilient support of the core... | 01/10/1984 |
| 4406960 | Laminated magnetic circuit stator with clamping fingers for a rotating electrodynamic machine, notably of the immersed bulb type A laminated magnetic circuit stator with clamping fingers for a rotating electrodynamic machine, notably of the immersed bulb type. The force clamping the sheets (T1, T4) of the stator magnetic circuit is transmitted to clamping fingers (1) by radial leve... | 09/27/1983 |
| 4404055 | Elastomeric seal An elastomeric bore seal, and a method of making and installing it. The seal is a fluid-impervious, thin-walled (0.025 inch), open-ended, cylinder-like member which is made of an expansible material that can withstand a wide range of temperatures (-65° F... | 09/13/1983 |
| 4398108 | Stator of a cryogenic electric machine The annular cavity in the stator of a cryogenic electric machine is defined by the housing and by the cylindrical element holding the winding. An electrically non-conducting ferromagnetic liquid is introduced into the annular cavity and is permitted to fl... | 08/09/1983 |
| 4389589 | Dynamo electric machine-internal combustion engine combination structure To attach a segmental stator, for example in the form of armature laminations, to the housing of a flywheel of an internal combustion engine, and permanent magnet rotor elements to the flywheel circumference, while permitting differential thermal expansio... | 06/21/1983 |
| 4380713 | Dovetailed teeth for use in a system for fixing stator winding bars in a rotating electric machine The winding bars (12) are fixed to the body (20) of teeth (14, 16) whose feet (18) form a dovetail engaged in the stator magnetic circuit (2), the mechanical strength of these teeth being due to the fact that they are constituted by layers of sheathing fa... | 04/19/1983 |
| 4375043 | System for fixing stator winding bars of a dynamo-electric rotating machine The stator winding bars (12) e.g. of an alternator are fixed to the magnetic circuit (2) by means of teeth (14, 16) fixed on the cylindrical inner surface (44) of said circuit and protruding inwardly therefrom. Successive teeth going circumferentially rou... | 02/22/1983 |
| 4371799 | Permanent magnet field pole for a direct current dynamoelectric machine A direct current dynamoelectric machine characterized by having a plurality of salient field poles each comprising a rigid laminated base member, a relatively more flexible laminated face member, and a plurality of permanent magnet sub-assemblies mounted ... | 02/01/1983 |
| 4363987 | Direct current machine stator Stator of a direct current electrical machine comprises a support structure (1) defined by a pair of frame members (4) and beams (2), the latter being disposed around the center line (3) of the stator with the ends thereof affixed to the frame members (4)... | 12/14/1982 |
