Did You Know...
...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8129880 | Concentrated winding machine with magnetic slot wedges Methods and apparatus are provided for improving operational characteristics of a concentrated winding machine. According to an example embodiment, an apparatus comprises stator teeth having distal ends, the stator teeth arranged in an annular fashion about an axis ... | 03/06/2012 |
| 8125113 | Slot wedges for electrical machines A wound core assembly for an electrical machine comprising a stack of laminations defining a core having a plurality of poles, the wound core assembly further comprising at least one slot wedge, wherein the slot wedge comprises a first portion arranged between adjac... | 02/28/2012 |
| 8125114 | Dynamoelectric machine locking wedge for maintaining a winding in a slot A locking wedge for a slot of a dynamoelectric machine is provided. The locking wedge includes a main body extending in an axial direction. The main body has a top surface and a bottom surface with a greater surface area than the top surface, and a first end surface... | 02/28/2012 |
| 8110958 | Rotor cover with rotor fins extending between stator slots An electric motor has a rotor, a stator encompassing the rotor, at least one bearing bracket, and a rotor cover. The rotor cover has at least one cover cap extending from the bearing bracket to at least the front face of the stator, which faces the bearing bracket. ... | 02/07/2012 |
| 8097995 | Split stator for electric motor and manufacturing method of the same A split stator for an electric motor includes a core having a tooth portion, a coil formed around the tooth portion, insulation spacers arranged between a surface of the tooth portion and an inner periphery of the coil, and holding the inner periphery of the coil wi... | 01/17/2012 |
| 8044551 | Stator for electric motor and manufacturing method thereof A stator for an electric motor is provided. The stator includes segmented cores each having one yoke and at least one pole protruding from the yoke in a radial direction, bobbins formed to receive the at least one pole therein, having blocking walls that extend from... | 10/25/2011 |
| 8018114 | Generator rotor with improved wedges A wedge for use in a generator rotor includes a wedge body having a generally triangular shape with flat surfaces, and such that when the wedge is placed in a generator rotor, the flat surfaces will define circumferential extents of the wedge body relative to a rota... | 09/13/2011 |
| 8008831 | Stator for rotary electric machine A stator for a rotary electric machine with wedge members insertable into slots without being bent or folded is provided. A coupling portion is integrally formed at a non-inserted end portion, which is not inserted into a slot, of a wedge member, the coupling portio... | 08/30/2011 |
| 7994679 | Small air gap air core stator Stator for use in an electrical machine. A non-magnetic support frame section and a non-magnetic axial coil support are used to provide an air gap stator configuration. The present stators provide an air gap winding configuration that facilitates the fixing of stato... | 08/09/2011 |
| 7990012 | Locking wedge for maintaining a winding in a slot and dynamoelectric machine incorporating same A locking wedge for a slot of a dynamoelectric machine is provided. The locking wedge has a main body extending in an axial direction, and includes a top and a bottom surface. The bottom surface has a greater surface area than the top surface. A first end surface fa... | 08/02/2011 |
| 7990015 | Pole tip attachment for a magnetic structure Attachments are removably coupled to the magnetic core of a rotating electric machine, the magnetic core being shaped to include a plurality of coil-receiving slots that are separated by radial teeth. Each attachment is constructed as a unitary member and includes a... | 08/02/2011 |
| 7986071 | Arrangement for closure of slots An exemplary slot closure arrangement has a sliding block and a pressure piece. At least one spring element is arranged in between them and can be prestressed by at least one attachment, which interacts with the sliding block and the pressure piece, thus creating a ... | 07/26/2011 |
| 7986070 | Overmoulded or canned electrical machine A rotary electric machine having at least one piece of electric equipment constituted by an overmolded or jacketed electric motor or by an overmolded or jacketed magnetic suspension system; the electric equipment including firstly a rotor (102) and secondly a... | 07/26/2011 |
| 7977826 | Multipole permanent-magnet synchronous machine having tooth-wound coils The permanently excited synchronous machine (1) includes a rotor (3) and a stand (2) which contains a three-branched winding system (8) which comprises tooth coils. The stand (2) has a total of three or six grooves (5) and a... | 07/12/2011 |
| 7936103 | Methods for fabricating a wedge system for an electric machine A method for assembling an electric machine is provided. The method includes providing a rotor having a cavity formed therein. At least one contoured recess is formed in a portion of the cavity. A wedge is inserted into the cavity. The wedge includes at least one co... | 05/03/2011 |
| 7919896 | Stator for rotary electric machine A stator for a rotary electric machine with wedge members insertable into slots without being bent or folded is provided. A coupling portion is integrally formed at a non-inserted end portion, which is not inserted into a slot, of a wedge member, the coupling portio... | 04/05/2011 |
| 7888837 | Rotor for a generator A rotor for a generator includes a cylindrical rotor body with axial winding slots which are arranged in a distributed manner over the circumference and in which are arranged conductor elements which extend in the axial direction. A cooling medium from a sub-slot wh... | 02/15/2011 |
| 7859162 | Armature of rotary motor, rotary motor and manufacturing method thereof Stable electrical connections between coils and a commutator are realized without causing slackening of the coils wound on individual magnetic teeth. An armature of a rotary motor includes an armature core structured splittably into magnetic tooth members which are ... | 12/28/2010 |
| 7821171 | Generator wedge with reduced eddy current losses A wedge placed between adjacent coils in a generator comprises a wedge body having a generally triangular portion to be positioned at a radially inner location, and a radially outer portion. The radially outer portion includes ends that will be spaced at axial ends ... | 10/26/2010 |
| 7808148 | Stator winding assembly and method Disclosed herein is an electric machine stator. The electric machine stator includes a tubular body with a plurality of radial slots formed into a perimetrical surface thereof, each of the plurality of slots having a width that varies over at least a portion of a ra... | 10/05/2010 |
| 7786645 | Superconducting machine stator A stator for an electrical machine includes a back iron including a substantially cylindrical annular structure having an inner surface and an axis. A plurality of supports are fabricated of non-magnetic material, each support extending parallel to the axis of the a... | 08/31/2010 |
| 7741749 | Inner cross over support clip An inner crossover support clip may be used to support a crossover wire joining two adjacent rotor coils on a rotating machine, such as a generator. The support clip of the present invention may be capable of withstanding forces, such as centrifugal forces, that lea... | 06/22/2010 |
| 7687963 | Slot seal The invention relates to a slot seal for an electric machine (13) comprising at least one slot (4) provided with a slot opening for arranging an electric conductor arrangement (6), wherein said slot sealing comprises, on the face thereof oriente... | 03/30/2010 |
| 7498711 | Cooling of a stator The invention relates to the cooling of a stator (3) of an electric machine (1), the stator (3) comprising an autonomous cooling circuit, that is to say distinct from another cooling circuit such as that of a rotor of the electric machine (1 | 03/03/2009 |
| 7443070 | Method and apparatus for controlling an electric machine The invention provides a method and apparatus for controlling a machine in which the magnetic flux emanating from a rotor is selectively diverted to a second path in the stator which bypasses the winding or windings so as to magnetically de-couple the winding or win... | 10/28/2008 |
| 7432628 | Generator and method of manufacturing same A generator and a method of manufacturing the generator, which can suppress a lowering of tension of a bind ring caused by an initial deformation during assembly and changes with the lapse of time during long-term operation, and can prevent a lowering of the support... | 10/07/2008 |
| 7423356 | Thermally-conductive stator support structure A stator assembly including a plurality of stator coil assemblies and a stator coil support structure constructed of a non-magnetic, thermally-conductive material. The stator coil support structure includes an axial passage for receiving a rotor assembly and a plura... | 09/09/2008 |
| 7397160 | Insulation device for linear motor An insulation device for being assembled in a linear motor is primarily made through molding a sheet insulation material into an insulation module with the shape harmonized with the shape of an iron core of a linear motor. Thus, coil wildings can be indirectly wrapp... | 07/08/2008 |
| 7365469 | Laminated armature core for an electric motor In an armature packet (1) for an electric motor, having a plurality of armature laminations (2, 3), in each of which a plurality of winding slots (4) for receiving an armature winding (5) are embodied, and the winding slots (4) of ... | 04/29/2008 |
| 7352099 | Electric machine An electric machine includes a stator having slots of substantially rectangular cross section. The slots are subdivided into pairs of slots, with each pair of slots configured with parallel flanks, wherein teeth are formed between the slots and have alternating rect... | 04/01/2008 |
| 7342334 | Insulated stator with wire routing element A stator for an electric machine includes stator teeth with powder coat insulation covering a portion of each tooth. An end cap with a routing element is positioned on one side of the stator. Wire extends around and contacts the powder coat insulation on the stator ... | 03/11/2008 |
| 7342338 | Permanent magnet electric motor with reduced cogging torque A permanent magnet electric motor 10 comprises a rotor 30 provided with two stages of permanent magnets in the axial direction on an outer circumferential face of a rotor iron core, and having a shaft shifted by a stage skew angle θr in electrical ang... | 03/11/2008 |
| 7342341 | Rotor for electrical rotating machines A rotor for electrical rotating machines includes a rotor core with axial grooves for receiving axial conductors. A first element on the axial grooves and a corresponding second element on the axial conductors interact with one another to fix the axial conductors in... | 03/11/2008 |
| 7342331 | Multi-plane flexible rotor balancing A rotor balancing system is provided that includes a rotor core, a plurality of core channels, a support wedge, a wedge channel, and balance masses. The rotor core includes an annular section, a first pole, and a second pole. The first and second poles each extend r... | 03/11/2008 |
| 7342335 | Magnetoelectric generator and method for manufacture thereof A magnetoelectric generator includes: a generating coil that is constituted by: a generating coil main body in which a conducting wire is wound onto respective teeth of a stator core; and an output wire that is led axially outward from the generating coil main body;... | 03/11/2008 |
| 7342339 | Reluctance machine having a non-uniform air gap A reluctance machine includes a stator having a stator core. The stator core includes a central bore and a plurality of stator poles extending inwardly from the stator core. Each of the stator poles includes a stator pole face. The reluctance machine further include... | 03/11/2008 |
| 7326143 | Rotary actuator A radial inner portion of a rotor core, where a rotor core and a rotor shaft are connected, has an electromagnetically excessive capacity. A recess is provided at the radial inner portion of the rotor core. The recess is a cylindrical bore retracting in the axial di... | 02/05/2008 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7309931 | Electric motor with cooling coil The invention relates to a motor part of a linear motor, i.e. the primary part or secondary part of an asynchronous or synchronous linear motor. According to the invention, it is proposed to configure a cooling coil (K), which has a meandering flat structure, from p... | 12/18/2007 |
| 7302750 | Method of manufacturing armature of rotary electric machine An armature of a rotary electric machine composed of an armature core, an armature winding and a shaft is manufactured in the following manner. A conductor bar including plural conductors connected in line is formed, and each conductor is cut out from the conductor ... | 12/04/2007 |
