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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7687968 | High speed generator rotor design incorporating positively restrained balance rings A generator may incorporate a positively restrained balance ring. A generator may include a rotor core including a rotor, and a balance ring. The balance ring may include a weight. The balancer may include a plurality of balance holes in the ring, at least one of th... | 03/30/2010 |
| 7649300 | Electromagnetic actuator and camera blade driving device An electromagnetic actuator includes a rotor rotatable within a predetermined angular range, a magnetizing coil, and a yoke having an arcuate surface facing the rotor, and first and second magnetic-pole parts that have mutually different magnetic poles upon energizi... | 01/19/2010 |
| 7626309 | Method of balancing an embedded permanent magnet motor rotor A method of balancing an embedded permanent magnet motor rotor includes the steps of: a) providing a non-magnetic cylindrical shaft having an axis of rotation and a generally cylindrical surface with an even number of recessed slots defining an even number of ribs t... | 12/01/2009 |
| 7598650 | Motor mechanism of DC inverter-fed compressor A motor mechanism of DC inverter-fed compressor is disclosed, wherein a motor rotor includes a first rotor layer, a second rotor layer and a third rotor layer, made up respectively of a plurality of rotor units stacked together. The rotor units have a shaft hole in ... | 10/06/2009 |
| 7579743 | Magnet rotor, movable magnet-type instrument with the magnet rotor, and stepping motor with the magnet rotor A magnet rotor in which rotation prevention and positional displacement (rattling, and misalignment of axes) between a magnet and a rotor body can be restricted, a movable magnet type-instrument with the magnet rotor, and a stepping motor with the magnet rotor. In t... | 08/25/2009 |
| 7554240 | Tubular electrical machines An improved synchronous tubular electrical machine comprises a radially outer member that has a substantially cylindrical inner surface and radially inner member that is substantially cylindrical and is coaxially disposed within the outer member such that it may mov... | 06/30/2009 |
| 7541713 | Heat sink A heat dissipating fan comprises a base unit having an axial sleeve, a dynamic bearing having a shaft section, a stator unit securely around the axial sleeve and a rotor unit. The rotor unit has a hub with a through hole to be jointed to the shaft section. A barrel ... | 06/02/2009 |
| 7511400 | Dynamo system having a freely moving flywheel in circular track A dynamo system comprises a flywheel mounted on a shaft intermediate its ends. A circular track in the dynamo system includes an inward groove structure to keep the ends of the shaft tracked inside while the flywheel rotating and spinning, the shaft's ends is dangli... | 03/31/2009 |
| 7418843 | Drum type washing machine A washing machine has a tub that may be made of plastic. A drum is rotatably installed in the tub. A shaft may pass through the tub and connect to the drum for transmission of a driving power from a motor to the drum. The washing machine has a bearing supporting par... | 09/02/2008 |
| 7420308 | PMBDCM and two phase SRM motor, two phase SRM rotor and stator, and coil wrap for PMBDCM and SRM motors A two-phase switched reluctance motor in an embodiment includes a plurality of salient rotor poles that each have asymmetric reluctances about a central radial axis of the respective rotor pole. Each of the rotor poles has the same width, and the rotor poles are ope... | 09/02/2008 |
| 7417350 | Dynamoelectric claw-shaped rotor with magnet retainer Reinforcing body retainers are formed on an inner peripheral surface near a tip and near a root of first and second claw-shaped magnetic poles. Reinforcing bodies have a trapezoidal base portion and a pair of wing portions formed on two sides of the base portion, an... | 08/26/2008 |
| 7417347 | Skeleton type BLDC motor A rotor of a BLDC motor includes: a rotor divided into a north pole and a south pole on the basis of a magnetic pole separating line; and a stator at which the rotor is disposed with an air gap, the stator having a first pole shoe, a second pole shoe and a pair of d... | 08/26/2008 |
| 7411328 | Dynamo electric machines A dynamo electric machine for an aircraft gas turbine engine includes a housing supporting a stator of the dynamo electric machine, a rotor assembly rotatably mounted in the housing and including an elongate hollow rotor shaft, a main shaft for connection at one end... | 08/12/2008 |
| 7400076 | Rotating electric machine and method and device for positioning rotational position sensor for the machine The rotating electric machine has a stator coil wound around a stator, a magnetic pole and a signal rotor fixed to a rotor, and a detection stator, disposed opposite to the signal rotor, for detecting the rotational position of the rotor, characterized by further co... | 07/15/2008 |
| 7380424 | Drum type washing machine Drum type washing machine including a tub of plastic having a wall for holding washing water therein and mounting a driving part thereon, a drum rotatably arranged inside of the tub, a shaft passed through the tub and connected to the drum for transmission of a driv... | 06/03/2008 |
| 7372183 | Permanent magnet synchronous motor A synchronous motor includes a stator, a rotor and permanent magnets. The rotor includes a rotor iron core that is rotatable relative to the stator, and conductor bars accommodated within corresponding slots in the rotor iron core. The conductor bars have their oppo... | 05/13/2008 |
| 7368841 | Dynamoelectric claw-shaped rotor with magnet retainer Reinforcing body retainers are formed on an inner peripheral surface near a tip and near a root of first and second claw-shaped magnetic poles. Reinforcing bodies have a trapezoidal base portion and a pair of wing portions formed on two sides of the base portion, an... | 05/06/2008 |
| 7368844 | Magnetoelectric generator A stator core includes: a laminated body in which a plurality of intermediate plates that have dowels are laminated so as to be integrated by dowel crimping between layers; and a pair of end plates that are disposed so as to be positioned on opposite sides of two en... | 05/06/2008 |
| 7364420 | Rotary press for making tablets Rotary press for making tablets with a rotor, which rotor exhibits a die plate and guides for the upper and lower punches, a rotor shaft and an electric drive motor, which electric drive motor rotates the rotor shaft and exhibits a runner and a stator, wherein the r... | 04/29/2008 |
| 7365466 | Rotor for an electrical motor The invention provides a rotor for an electrical motor, a tool for making a rotor core and a method of making the rotor. The rotor could be incorporated e.g. in a line-start motor and comprises a squirrel cage and magnet located in a rotor core. The magnets are, in ... | 04/29/2008 |
| 7362027 | Electric machine with a laminated rotor core An electric machine includes a shaft and a rotor core mounted onto the shaft and formed of a plurality of stacked laminations. The rotor core has opposite end surfaces for attachment of a plate in such a manner as to allow an axial deflection of the laminations in t... | 04/22/2008 |
| 7362031 | Electric motor An electric motor has an armature rotatably accommodated inside a motor housing and a pair of magnets fixed to an inner surface of the motor housing so as to face the armature. The armature has an armature core 17 fixed to a rotating shaft 16, and ten ... | 04/22/2008 |
| 7358637 | Method of compressing lamination stacks for permanent magnet rotor The present invention is a method of compressing lamination stacks for a permanent magnet rotor. The method includes the steps of providing a plurality of stages of lamination stacks and magnet carriers on a rotor shaft to form an assembly; positioning a spacer betw... | 04/15/2008 |
| 7353913 | Elevator hoisting machine and motor A elevator hoisting machine is provided with a stator mounting portion at which a stator core of a motor is mounted to a surface of a side opposite to a sheave in a sheave rotation centerline direction of the hoisting machine. A hat shape fixed frame member in which... | 04/08/2008 |
| 7355315 | Drum type washing machine with rotor and shaft having interlocking connection mechanism A rotor of motor for drum type washing machine comprises a stator formed of a field winding; a rotor disposed outside the stator to house the stator, and having a yoke surface on which a permanent magnet for performing a magnetic interaction with the field winding o... | 04/08/2008 |
| 7355316 | Electrical tool In the portable electrical circular saw (electrical tool) in which a commutator motor (permanent magnet motor) is mounted in a motor case (housing) which is integrally formed in a tube shape, the commutator motor includes a stator fixed to an inner circumferential s... | 04/08/2008 |
| 7352100 | Direct-current motor A stator of a direct current motor includes six magnetic poles. An armature of the direct current motor includes an armature core having eight slots, a plurality of windings wound around the armature core as concentrated windings, and a commutator having twenty-four... | 04/01/2008 |
| 7346974 | Method for producing a conductor bar of transposed stranded conductors A method for producing a conductor bar including transposed stranded conductors for a large, rotating electric machine. The method includes a first step of cabling a plurality of electrically insulated individual wires to form a plurality of identical stranded condu... | 03/25/2008 |
| 7348698 | Actuator for operating a transmission control valve of an automatic transmission apparatus A rotor having magnets composed of rare-earth magnets is rotatably disposed inside an exterior casing, a penetrating aperture is disposed through a first end of the exterior casing relative to a direction of a motor central axis, and a filter is disposed so as to co... | 03/25/2008 |
| 7345394 | Dynamoelectric claw-shaped rotor with magnet retainer Reinforcing body retainers are formed on an inner peripheral surface near a tip and near a root of first and second claw-shaped magnetic poles. Reinforcing bodies have a trapezoidal base portion and a pair of wing portions formed on two sides of the base portion, an... | 03/18/2008 |
| 7345399 | Motor for a fuel pump An electrically commutated motor for a fuel pump having a rotor connected to a shaft and having plastic-bonded ferrite, with a fuel-resistant shaped body formed by the plastic-bonded ferrite, and a magnetic return element adjustable in relation to the shaped body. | 03/18/2008 |
| 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 |
| 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 |
| 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 |
| 7342342 | Rotary electrical machine and electric vehicle having the same A rotary electrical machine includes a rotational shaft supported by a housing for rotation about an axis, a rotor coupled with the rotational shaft, and a stator fixed to the housing and oriented to face the rotor. A rotor position changing mechanism moves the roto... | 03/11/2008 |
| 7339298 | Compliant motor driven variable electrical device A motor driven electrical device includes: a variable electrical device having a rotational variable control; a first support plate positioned above the variable electrical device; a motor support plate pliably attached to the first support plate using a pliable sep... | 03/04/2008 |
| 7339293 | Electric machine with a wrapped winding cooled to a low temperature An electric machine has a rotor that is rotatable about an axis of rotation, and an especially superconducting winding which is to be cooled to a low temperature. The winding is enveloped by a securing means with a wrap. The outer contour of the wrap of the securing... | 03/04/2008 |
| 7336013 | High mechanical strength electrical connection system and method In accordance with one embodiment, the present technique provides a bushing that is configured to electrically and mechanically couple a conductor bar of a rotor assembly to an end ring of the rotor assembly. The exemplary bushing has an interior surface that is con... | 02/26/2008 |
| 7332841 | Computer cooler with light emitting arrangement Provided is a cooler mounted in computer having a transparent case comprising a frame including a coil section including windings, a conductive first bearing on an upper center of the coil section, a conductive second bearing on a lower center of the coil section, a... | 02/19/2008 |
| 7327062 | Rotor for rotary electric machine A rotor (10) for a rotary electric machine (1) comprises a rotation shaft (11), and a plurality of rotor cores (120-129) fixed to the rotation shaft (11) and axially split. The rotor cores (120-129) have outer ... | 02/05/2008 |
