Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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 |
| 7346975 | Method of manufacturing a stator for an inner type of rotor A method of manufacturing a stator core for an inner rotor type of motor. The core back of the stator core in the motor has an arc shaped inner circumferential surface therein that is offset from the center thereof. The stator core is produced from a laminated body ... | 03/25/2008 |
| 7348706 | Stator assembly for an electric machine and method of manufacturing the same A stator for a multi-phase electric machine having a plurality of core segments interconnected with one another and a plurality of coils. At least one core segment includes a plurality of teeth and a back portion that at least partially interconnects the teeth. The ... | 03/25/2008 |
| 7345396 | Metallic laminations for magnetic circuits Metallic laminations for magnetic circuits. Some of the illustrative embodiments may be a magnetic circuit comprising a low reluctance magnetic flux path comprising a plurality of stacked metallic laminations (each lamination having an edge), and an air gap in opera... | 03/18/2008 |
| 7345395 | Motor stator core with skewed slots and production process therefor In a motor stator, teeth radially project from an annular stator core, and a plurality of slots formed between adjacent teeth are skewed. Phase windings alternately pass through slots having different skew directions, wherein the length of bridging portions, which d... | 03/18/2008 |
| 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 |
| 7342343 | Stator and resolving method and device thereof The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the ... | 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 |
| 7340820 | Machine stator fabrication method A machine stator is fabricated by positioning pre-wound stator windings with respect to a laminated stator yoke and directly molding composite tooth tips into contact with respective teeth of the laminated stator yoke, or by positioning pre-wound stator windings aro... | 03/11/2008 |
| 7340821 | Stator and resolving method and device thereof The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the ... | 03/11/2008 |
| 7340822 | Insulator and manufacturing method thereof, and stator for electric rotating machine A stator for a motor includes a stator core, an insulator, and coils. The stator core includes an annular portion and teeth, which extend radially from the annular portion. The stator core is divided into core segments in the circumferential direction. Each core seg... | 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 |
| 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 |
| 7342344 | Stator of outer rotor type motor for drum type washing machine The present invention provides an outer rotor type motor for a drum type washing machine to reduce material and weight for fabrication, simplify fabrication process, provide stable assembly of a stator to a fixing side, such as a tub or a bearing housing, prevent un... | 03/11/2008 |
| 7337524 | Method of forming a winding core for an electric motor A method of forming a winding core for an electric motor includes providing a hollow jig having a guide, sliding plates, each having a guide and a central opening, onto the guide in the jig where the guides mate, and pressing a shaft into the central opening of the ... | 03/04/2008 |
| 7339301 | Stator structure of motor A stator structure comprising at least one first magnetic conductive plate and at least one second magnetic conductive plate, each magnetic conductive plate having a plurality of radial arms and pole tooth provided on ends of the radial arms, wherein the pole teeth ... | 03/04/2008 |
| 7339292 | Motor having shifted teeth of pressed powder construction A multi-polar rotary machine comprises a and a cylindrical outer rotor arranged concentrically with the stator and with an air gap therebetween. The stator has two splitted stator elements and a ring shaped permanent magnet held between the stator elements and magne... | 03/04/2008 |
| 7336014 | Stator of outer rotor type motor for drum type washer and fabricating method thereof The present invention provides an outer rotor type motor for a drum type washing machine to reduce material and weight for fabrication, simplify fabrication process, provide stable assembly of a stator to a fixing side, such as a tub or a bearing housing, prevent un... | 02/26/2008 |
| 7332839 | Electric machine having a laminated core with a portion jutting from the outer surface to form a gap for a flux sensor An electric machine includes a stator and a rotor interacting with the stator, wherein the stator and/or the rotor has/have a conducting device for guiding a magnetic flux. The conducting device includes a gap which is provided in a path of the magnetic flux, and a ... | 02/19/2008 |
| 7327064 | Brushless motor A brushless motor includes a rotor having a permanent magnet magnetized N pole and S pole alternately in a rotary direction, and a stator having a core facing the permanent magnet in a radial direction and a bearing which rotatably supports the rotor. The core inclu... | 02/05/2008 |
| 7327065 | Motor, stator for the same, and manufacturing method thereof A motor having a stator that is configured by including a plurality of magnetic partial core members, which have a plurality of split ring cores forming a ring and coil support cores projecting outwardly from the respective center portions of the split ring cores. T... | 02/05/2008 |
| 7326507 | Preparation of a toner for reproducing a metallic hue and the toner The present invention relates to a toner and process for preparing a toner for reproduction of a metallic, preferably golden or silvery, hue by a printing process, especially for electrophotography. A congeneric process and/or a congeneric toner is preserved with re... | 02/05/2008 |
| 7325637 | Hybrid drive device A hybrid drive device comprises an internal combustion engine and an energy converter adapted to co-operate with an output shaft of the internal combustion engine and which comprises an electric machine. The electric machine includes a first rotor connected to the o... | 02/05/2008 |
| 7327066 | Motor and recording disk drive device provided with the same In a spindle motor, a core (33) includes a plurality of core plates (34), which are laminated one on another. The core (33) is constituted by laminating two cores, that is, a first core (34a) and a second core (34b), ... | 02/05/2008 |
| 7323799 | Axial gap type rotating electric machine There is provided an axial gap type rotating electric machine which is small-sized and achieves a high motor efficiency as a drive source having a high torque using a strong magnet by reducing energy loss by an induced current. An axial gap type rotating electric ma... | 01/29/2008 |
| 7323800 | Outer stator for reciprocating motor and manufacturing method thereof An outer stator of a reciprocating compressor comprises: a bobbin formed as a ring shape and provided with a winding coil therein; an outer stator frame coupled to an outer circumferential surface of the bobbin and formed of a magnetic body in which a flux flows; a ... | 01/29/2008 |
| 7321178 | Spindle motor In a spindle motor in which teeth portions of a stator core formed by laminating magnetic plates are bent in order to increase the number of turns of the stator windings, a gap in the teeth portions between the magnetic plates is avoided and a precise attractive for... | 01/22/2008 |
| 7321177 | Synchronous electric motor A synchronous electric motor including a rotor having a rotation axis, and a stator surrounding the rotor through a gap. The rotor includes a rotor core having an outer circumferential surface extending about the rotation axis and a plurality of permanent magnets at... | 01/22/2008 |
| 7321176 | Multi pole electrical machine with reduced cogging force A multi pole electrical machine includes an armature and a stator. The armature is movable in a direction of armature motion with regard to said stator and includes armature pole pairs. These armature pole pairs follow each other in the direction of armature motion.... | 01/22/2008 |
| 7315105 | Device for an electrical machine A device for axially magnetized electrical machines, especially motors, having a rotor with permanent magnets and a stator with a series of windings on iron cores. The stator comprises a support pin (17), which is integrated or joined with a protruding flange... | 01/01/2008 |
| 7315104 | Iron core and method of manufacturing the same and apparatus for manufacturing the same An apparatus for manufacturing an iron core comprising: a plate thickness measurement unit for measuring a thickness of the strip as an intermediate product of the iron core; an inlet guide for positioning the strip in a widthwise direction thereof; a mil roll unit ... | 01/01/2008 |
| 7312550 | Architecture for electric machine In one aspect, an alternator is described which includes a current control apparatus including a stator winding and a control winding, wherein current control in the control winding regulates the stator winding. In another aspect, a gas turbine engine includes a mul... | 12/25/2007 |
| 7312552 | Rotary electro-dynamic machine and armature winding thereof Sub core sections are arranged at the end portions and the center portion of a stator core, and strand conductors are twisted and transposed by 360 degrees continuously toward the extending direction of winding slot. The length corresponding to transposition pitch 1... | 12/25/2007 |
| 7312549 | Transverse flux machine with stator made of e-shaped laminates In order to improve the torque per weight ratio in electrical machines for a lower price it is proposed to use a segmented stator design. The segmented stator design is based on general E shaped cores traditionally used for single-phased transformers and inductors, ... | 12/25/2007 |
| 7309940 | Rotor arrangement for an electrical drive motor of a compressor, particularly a refrigerant compressor The invention concerns a rotor arrangement for an electrical drive motor of a compressor, particularly a refrigerant compressor, with a rotor having a rotor lamination of stacked sheet plates, and a shaft, which is inserted in an axial recess of the rotor lamination... | 12/18/2007 |
| 7304559 | Rotary transformer for transmission of electrical energy or information A device for efficient transmission of electrical energy and/or information is built in the manner of a rotary transformer. The cores of this device are made of ferromagnetic rings of a U-shaped cross section of soft iron, or of soft iron core stacks of annular or h... | 12/04/2007 |
| 7301310 | Excitation controlled synchronous permanent magnet machine The present invention provides an apparatus and methods for providing constant voltage from a permanent magnet generator at varying prime mover speeds or under varying loads. A constant voltage permanent magnet generator includes a housing, a magnetized rotor, a pri... | 11/27/2007 |
| 7298064 | Electric motor and apparatus for manufacturing electric motor A motor capable of reducing cogging torque depending on teeth of a stator, and a motor manufacturing apparatus for manufacturing this motor. The angles of rolling directions of cores stacked are set so that the phase difference between the phases of cogging torques ... | 11/20/2007 |
| 7294949 | Single-phase induction motor A single-phase induction motor comprises a stator having a stator coil; an induction cage rotor rotatably inserted into a receiving groove of the stator, having a rotation shaft at a center thereof, having a plurality of first conductor bars at an outer peripheral p... | 11/13/2007 |
| 7294944 | Brushless motor A compact, highly accurate and inexpensive brushless motor is disclosed. A bearing is fixed to the inner periphery of a cylindrical portion of a housing, and a shaft is rotatably inserted through the bearing to cover the housing. A yoke arranged at the forward end o... | 11/13/2007 |
| 7294942 | Outer rotor type motor for drum type washing machine and method for fabricating the same Direct coupling type motor for drum type washing machine having a stator which can reduce material required for fabrication, and a weight after fabrication, simplify a fabrication process, and can be mounted on a fixing side, such as a tub or a bearing housing secur... | 11/13/2007 |
