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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 4123976 | Attractive type electromagnet device for magnetic levitation running vehicles An improvement of the attractive type electromagnet device for the magnetic levitation running vehicles. Each of the electromagnets arranged in two longitudinal rows has a U-shape-cross-section core of which opposite ends are each slanted to face downward... | 11/07/1978 |
| 4115712 | High power and high speed linear motor An electric linear motor of the axial type comprising a fixed armature formed by an elongate rail of U-shaped cross section comprising magnetic and electrically conductive material, and a mobile, elongate inductor disposed between the arms of the U. The i... | 09/19/1978 |
| 4114060 | Electric motor An electric motor, particularly for driving a gramophone, a tape recorder or an electric instrument at a low rotational speed whereby an induction effect is utilized to achieve good starting torque and a reluctance effect to give good torque when the moto... | 09/12/1978 |
| 4095150 | Two-phase asynchronous motor For the purpose of providing a two-phase asynchronous motor of the kind comprising a wound stator made up of two portions spacedly disposed parallel to each other and in which the flux flowing in all the field magnets of the stator is exclusively that of ... | 06/13/1978 |
| 4088213 | Apparatus for transporting cylindrical steel articles In an apparatus for transporting cylindrical steel articles by rolling down on inclined skid rails, a plurality of electromagnets are provided along extension of the skid rails so as to reduce the speed of rolling down of the articles repeatedly during tr... | 05/09/1978 |
| 4077507 | Metal sheet conveyor with linear electric motor and ground-effect shoe A conveyor apparatus is designed for the propulsion of metal sheets and more specifically sheets of ferromagnetic material. It operates by means of a linear induction motor associated with fluid cushion developing shoes. The apparatus is arranged to be mo... | 03/07/1978 |
| 4075539 | Step-by-step reciprocating mechanism A step-by-step reciprocating mechanism for guiding a moving member along a straight guide path in the forward direction and the reverse direction. The moving member has at least one magnetic pole for each phase of a multiphase exciting current. A pluralit... | 02/21/1978 |
| 4074153 | Magnetic propulsion device A magnetic propulsion device which provides a magnetic field in which a permanently magnetized conveyor element is caused to have translatory motion as a unitary body. Operation of the device does not depend on induced magnetism in the moving element or i... | 02/14/1978 |
| 4068152 | Power supply system for a linear motor In a linear motor system in which the series of driving coils provided along a railway is divided into sections each including a plurality of coils, each section being fed through a power control switch which is closed in a sequential order, a plurality o... | 01/10/1978 |
| 4061089 | Personal rapid transit system A land transportation system for a vehicle that is supported and guided by air bearings. The vehicle requires no driver or motorman because a guideway determines the direction of travel, except at switch-points in the network. The vehicle is propelled by ... | 12/06/1977 |
| 4059775 | Linear motor A linear motor having a permanent magnet armature whose interaction with the field provided internally by a closed flux path field core having a winding on one leg, provides the driving force.... | 11/22/1977 |
| 4051398 | Coil means for driving a linear motor A series of thin electromagnetic print coils of rectangular shape are arranged in a line overlapped with each other in which each coil is slightly offset from the preceding coil, and are molded together with a plastic material to form a thin elongated coi... | 09/27/1977 |
| 4037122 | Linear actuator A linear actuator comprises a toothed magnetic motor bar and a motor element having a pair of E-cores on opposite sides of the motor bar. Rollers attached directly to the E-cores ride on the motor bar to maintain a fixed air gap between the motor bar and ... | 07/19/1977 |
| 4027597 | Linear induction motor with damping cage A linear induction motor, particularly for levitation-type vehicles (e.g., magnetic-suspension vehicles), has a stator juxtaposed with a reaction rail and formed with a plurality of longitudinally spaced windings or coils interdigitated with damping bars ... | 06/07/1977 |
| 4020374 | Superconducting electric motors A linear motor comprises an electrically conductive tubular track consisting of one or more pairs of helically wound strips and a movable assembly. The movable assembly includes a superconducting field winding freely spinning about an axis close to the ax... | 04/26/1977 |
| 3999107 | Self-starting synchronous motor An electro-magnetic synchronous motor has an E-shaped stator linear or partially wrapped around an axis, the legs being the pole shoes. The middle leg includes a permanent magnet and one or both outer legs have coils. A movable displacement element has po... | 12/21/1976 |
| 3988658 | Electromagnetic drive assembly for rotary bodies using a magnetically mounted rotor An electromagnetic drive for rotary bodies including a stationary member having at least two coils and a revolving member arranged for rotation with respect thereto. The coils are supplied with a current signal for causing rotation of the revolving member... | 10/26/1976 |
| 3984706 | Electromagnetic actuator for voice coil An electromagnetic actuator for linear driving of movable heads of a magnetic disc unit in an information processing system. A plurality of slits or plates are provided with a magnetic pole inscribed directly on the internal surface of a permanent magnet,... | 10/05/1976 |
| 3981245 | Electrical setback generator An electrical setback generator for ammunition fuses is provided which has a core which extracts energy from a magnetic field through a reverse saturation cycle.... | 09/21/1976 |
| 3950661 | Linear induction motor with artificial transmission line A system for separating electrical conducting components from trash, particularly aluminum, copper and stainless steel materials since magnetic materials are readily removed by simple magnets. A linear induction motor connected as an artificial transmissi... | 04/13/1976 |
| 3935486 | Finely adjustable table assembly A finely adjustable table assembly is particularly useful, for example, as a light-exposing device for printing IC (integrated-circuits) patterns and comprises a base plate, a movable table, a plurality of curved plate springs for connecting the movable p... | 01/27/1976 |
| 3934183 | Linear reluctance motor for the propulsion of rail transportation means A linear reluctance motor for the drive of rail transportation means which includes a primary part whose coils are fed with a.c. power while its secondary part is constructed rail-like, is arranged parallel to the track and is fixedly installed on the gro... | 01/20/1976 |
