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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7960877 | Electric reciprocating motion device with spring motor An electric reciprocating motion device includes a motor having a rotary shaft for outputting a reciprocating rotational power and a motion head coupling with the rotary shaft and being driven to move in a reciprocating motion along an axis of the rotary shaft and i... | 06/14/2011 |
| 7944097 | Drive mechanism for a mail sorting sorting machine, or method for assembling a drive mechanism for a mail sorting sorting machine The claimed subject matter relates to a mechanism and method for assembling a drive mechanism for a mail sorting machine, or to a drive mechanism for a sorting gate of a mail sorting machine, used to deflect flat, flexible mail items during their conveyance through ... | 05/17/2011 |
| 7315098 | Linear oscillator and electrically driven toothbrush A linear oscillator and an electric toothbrush capable of emitting a low noise and of being assembled compact are provided. The linear oscillator, which reciprocates a shaft in an axial direction thereof, includes a plunger movable together with the shaft in the axi... | 01/01/2008 |
| 7288863 | Electric appliances having electric motors for driving oscillatory elements an electric appliance includes an electric motor having a first oscillatory element, a second oscillatory element and an electric coil configured to generate a magnetic field to drive the first and second oscillatory elements. The electric appliance also includes a ... | 10/30/2007 |
| 7233343 | Serial printing with multiple torsional hinged MEMS mirrors System and method for operating four resonant torsional hinged mirrors such as torsional hinged MEMS devices at the same oscillating frequency suitable for use in a color printer requiring four serially arranged line printers. ... | 06/19/2007 |
| 7157816 | Motor providing oscillating action for a personal care appliance The motor assembly which produces an oscillating action for a personal care device includes a horizontally positioned U-shaped stator portion, and an armature portion which includes a torsion spring shaft which is anchored at one end thereof. The armature portion al... | 01/02/2007 |
| 7107848 | Active scan velocity control for torsional hinged MEMS scanner System and method for adjusting an operational parameter of a component that drifts with temperature changes. The system includes a torsional hinged device that oscillates at a resonant frequency, and the resonant frequency of the device drifts or varies with temper... | 09/19/2006 |
| 7061466 | Force feedback device including single-phase, fixed-coil actuators A force feedback interface device that provides force feedback to a joystick handle manipulated by a user. A force feedback device inputs control signals to a computer and outputs forces to a user of the force feedback device. The device includes a housing gripped b... | 06/13/2006 |
| 7015602 | Small electric appliance with a drive mechanism for generating an oscillatory motion A small electric appliance with a drive mechanism for generating an oscillatory motion of at least one working unit of the small electric appliance. The drive mechanism has a first drive component, a second drive component and a coil for producing a magnetic field t... | 03/21/2006 |
| 6965177 | Pulse drive of resonant MEMS devices System and method for establishing and maintaining resonant oscillations of a torsional hinged device such as a pivotally hinged mirror. The system and methods comprise a permanent magnet mounted to the pivoting mirror that interacts with an electromagnetic coil. Th... | 11/15/2005 |
| 6960848 | Electromagnetic drive device and light quantity adjustment device using the same An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor rotatably disposed in the coil frame through a rotational shaft, a transmission member for transmitting a rotation of the magnet rotor, and a coil wound around an outer... | 11/01/2005 |
| 6933630 | Drive mechanisms for small electric appliances A small electric appliance drive mechanism includes a first drive component, a second drive component, and a coil configured to produce a magnetic field extending from the first drive component and acting on the second drive component. The first drive component and ... | 08/23/2005 |
| 6265794 | Method for tuning the resonant frequency of crossed-flexure pivot galvanometers A stator is adjustably attached to the frame of a crossed-flexure pivot galvanometer. The stator acts on a permanent-magnetic rotor, having radially facing poles, causing the rotor to torsionally oscillate, which causes the rotor to be displaced from an a... | 07/24/2001 |
| 5996554 | Throttle valve control device A throttle valve control device is composed of a stator core with a solenoid and a rotor carrying a throttle valve. The rotor has a pair of poles which is composed of one or a plurality of rare-earth-metal permanent magnets magnetized in the radial thickn... | 12/07/1999 |
| 5903071 | Small electric apparatus equipped with generator A small electronic apparatus that transmits mechanical energy obtained by rotational or reciprocating motion of a rotary weight to a power genetrator rotor to produce electrical energy so as to operate itself. The apparatus includes a power transmission m... | 05/11/1999 |
| 5717265 | Compact motor with speed reducing mechanism Disclosed herein is a compact motor with a speed reducing mechanism, including a cylindrical casing having an open end, a stator fixedly provided in the casing, an exciting coil provided in the casing, a rotor provided in the casing and having a high-spee... | 02/10/1998 |
| 5679988 | Rocking motor A rocking motor comprises a coil wound around a hollow coil bobbin. A rotor is rotatably mounted at a position close to an end portion of the coil bobbin. The rotor has a center shaft and a permanent magnet and is magnetized with two poles such that the p... | 10/21/1997 |
| 5672924 | Robots using modular direct drive motors A direct drive robot motor may be used for the arms, legs, eyes and fingers of a robot. The motor comprises a rotor, having a permanent magnet, and a tubular arm portion, which is integral with the rotor and extends outwardly through a slot in a stator bo... | 09/30/1997 |
| 5581138 | Compact motor with speed reducing mechanism Disclosed herein is a compact motor with a speed reducing mechanism, including a cylindrical casing having an open end, a stator fixedly provided in the casing, an exciting coil provided in the casing, a rotor provided in the casing and having a high-spee... | 12/03/1996 |
| 5334893 | Monophase electromagnetic rotary actuator of travel between 60 and 120 degrees This invention relates to a monophase electromagnetic rotary actuator of angular travel between 70/N and 110/N degrees exhibiting a high torque/mass ratio and a torque that is approximately independent of the angular position of the rotor. A relation betw... | 08/02/1994 |
| 5266854 | Electromagnetic transducer In the electromagnetic transducer disclosed herein, first and second magnetic core structures are oriented in opposition with a space therebetween. In the space between the core structures, an armature is provided for completing magnetic circuits for both... | 11/30/1993 |
| 5119254 | Data transducer position control system for rotating disk data storage equipment A servo calibration method is disclosed for a disk drive including a rotating data storage disk journalled to a frame and having a multiplicity of concentric data tracks defined on a major surface thereof and an actuator structure under the control of a p... | 06/02/1992 |
| 5045735 | Device comprising an actuator, method for use in the device, and system for controlling a gas or liquid flow, comprising the device A system is disclosed which comprises an electrical actuator (2), a current source (35), a actuating unit (37) having a limited operating range, and a control unit (41). The actuator comprises a first actuator body having two diametrially opposed magnetic... | 09/03/1991 |
| 5025201 | Segmented resolver This electrical resolver has an arcuate stator with a concave inner side concentric to a convex side of an angularly rotatable arcuate rotor limited to rotation within outer ends of the stator. The stator and rotor have arcuate magnetic cores with transve... | 06/18/1991 |
| 4974918 | Device with oscillating mirrors for deviating electromagnetic beams A device for deviating an electromagnetic beam. The device includes a mirror for reflecting the electromagnetic beam; and first, second and third magnets for generating a magnetic field. The second magnet is located between the first and third magnets. Th... | 12/04/1990 |
| 4812934 | Actuator for memory storage device In a magnetic disc device, it is necessary that a magnetic head be positioned above an object data track at a high speed and with a high accuracy. This positioning operation is carried out by an actuator. In order to carry out a magnetic head-positioning ... | 03/14/1989 |
| 4700090 | Motor-compressor unit A motor-compressor unit comprises a motor including a magnetizable stator; an armature oscillatable about the motor shaft axis; two coils arranged opposite each other on the stator; and a magnetizable core extending between the coils. The stator has oppos... | 10/13/1987 |
| 4632501 | Resonant electromechanical oscillator A resonant electromechanical oscillator which includes a base portion, a driven portion, a cantilevered sheet-form flexural suspension which spaces the driven portion from the base portion for oscillation about an axis in the plane of the sheet-form suspe... | 12/30/1986 |
| 4626717 | Pivotably oscillating motor having simple armature pole elements A pivotally oscillating motor having magnetizable armature pole elements arranged to cooperate with respective air gaps. Alternating current through a stator coil aids to the permanent magnet flux through one air gap while it reduces that in another air g... | 12/02/1986 |
| 4595849 | Small a.c. motor having an oscillatory permanent magnet armature The small a.c. motor which is intended in particular for the oscillating drive of a toothbrush fastened to the armature shaft, has as the armature a cylindrical permanent magnet (4) magnetized diametrically, a stationary coil surrounding this permanent ma... | 06/17/1986 |
| 4543718 | Cast cutter apparatus An oscillating tool, particularly a cast cutter (40) having a support housing (46) with a cutting blade (70) interconnected to the housing (46) proximate one end thereof for oscillatory rotational movement about an axis (56) is disclosed. A torsion shaft ... | 10/01/1985 |
| 4490635 | Pure torque, limited displacement transducer A bidirectional, pure torque generating electromechanical rotor mounted to a frame includes flux return top and base plates, a generally annular permanent magnet secured to one of the plates and a generally annular rotatable coil assembly placed between t... | 12/25/1984 |
| 4326138 | Hair cutting apparatus Hair cutting apparatus comprising a housing; an AC electromagnet fixed in the housing and defining a gap; at least one permanent magnet disposed for reciprocating motion in the gap; a mounting member pivotally mounting the at least one permanent magnet ab... | 04/20/1982 |
| 4181465 | Apparatus utilizing magnetic means for transferring articles to and from predetermined positions Apparatus for handling materials, such as robots, in which the transfer units are connected with drive that cause the swinging movement of the transfer units between two positions about a neutral position located therebetween. Retaining are disposed on th... | 01/01/1980 |
| 4110879 | Method of making a limited-rotation motor with integral displacement transducer The armature of a limited-rotation motor which rotates about an axis relative to a stator is extended axially beyond the stator between arcuate, non-magnetic capacitor plates disposed in a cylindrical array coaxial with the rotation axis. The capacitor pl... | 09/05/1978 |
| 3959673 | Oscillation motors According to one feature a bearing-free oscillation motor, e.g. for driving an optical scanner or chopper comprises a torsion shaft fixed at one end for rotational oscillation about its axis, a rotor support member substantially more rigid in bending than... | 05/25/1976 |
