electric (Total 583294 Patents Found)

An electric hair curler comprises a handle and a barrel connected thereto for winding thereabout the hair. The barrel is provided with an electric heater for curling the hair wound on the barrel. The heater includes a plurality of resistor elements in the form of strips extending along the length of the barrel in gener...
Apparatus for detecting possible changes or variations in the dimension of an air gap of a running electric rotary machine during operation thereof. Detector coils are each accommodated within respective slots formed in the stator core of the machine, the coils being geometrically separated from one another at an angul...
Methods of installing an elongated, flexible, electric heater into a material storage tank comprising attaching flexible cables to opposite ends of the heater while the same is disposed exteriorly of the tank, and utilizing such cables to guide the heater to a selected position within the tank. The invention also inclu...
A game of chance apparatus includes a rotatable symbol substrate driven relative to a marker by an electric motor. Teeth are mounted coaxially with the symbol substrate and have a tooth repetition equal to that of the symbols. The relative motion between the symbol substrate and the marker can be started or stopped by ...
An adsorbent electrode assembly electrically enhances contaminant removal in soil washing processes. The adsorbent electrode assembly is immersed in the froth of a flotation cell and connected to one pole of a battery. The other pole of the battery is connected to the flotation cell tank. The resulting electric charge ...
A charge/discharge control circuit comprises two serially connected electric power sources and two overcharge/overdischarge detection circuits. A control circuit outputs a signal for controlling the charge/discharge of the electric power sources in accordance with signals from the two overcharge/overdischarge detection...
Angle bounds of a normal energization of the coil of an electric motor are generated in accordance with a combination of a rotation direction and a torque direction of the electric motor. Angle bounds of the decided energization are determined based on a decision of either energization or deenergization of the coil and...
A device for generating electric signals representing the position coordinates of a stylus on a reference surface, characterized in that it comprises a signal generator (6) that is fixed with respect to the reference surface and comprising a movable part (5) which works in conjunction with at least two potentiometers g...
An electric switch for a power tool, comprising: a slider slidably received in a switch casing along a longitudinal direction, a handle provided in the grip of the power tool for manually actuating the slider along the longitudinal direction; a plurality of fixed contact pieces arranged in an internal bottom surface of...
A Liquid crystal device includes: first and second substrates; a layer of liquid crystal disposed between the first and second substrates: and a plurality of picture elements. Each of the picture elements includes: a first electrode disposed on the first substrate; a second electrode electrically insulated from and dis...
An electric power apparatus and a power transmitting apparatus of an electric vehicle are each constructed as a unit structure to improve the overall range and reliability of the electric vehicle. In the electric vehicle including, as a power system, a battery power supply, a motor, and a controller for controlling rot...
A control system for regulating the torque and speed of an alternating current wound rotor motor used in the traverse drive of an overhead travelling crane comprises an SCR bank controlled by a firing circuit responsive to actuation of an operator-controlled induction master control. The control system further comprise...
A drive apparatus for an electric vehicle comprises a motor (1), a gear section (9) for transmitting rotation of a rotor shaft (2) of the motor to a wheel, and a case (10, 90) for accommodating the motor and the gear section. The case has a partition (12) that separates a motor chamber (m) for accommodating the motor a...
A device such as an electric motor, an electric generator, or a regenerative electric motor includes at least one stator arrangement having a plurality of electromagnetic assemblies with each electromagnetic assembly including at least a portion of a magnetic core that is formed from thin film soft magnetic material. T...
A wire-cut electric discharge machine in which a current supplying member is in direct contact with a wire electrode, the shape of the current supplying member and the direction of passage of the wire electrode before and after the member being adapted to each other to prevent the formation of narrow gaps of sharp wedg...
An electrode structure includes: a metallic electrode; a case for accommodating and holding the electrode, and one end of a lead wire connecting to the electrode; and an insulating member interposed between the electrode and the case in order to ensure insulation between the electrode and the case, in which structure a...
An electric device having rotary type current collecting means through electric source cord which is made freely rotatable with respect to variations in using position of the device for preventing any twist of the cord. The means comprises an integral block of a first carrier of current feeding conductor connected to t...
A semi-conductor device including a housing for a semi-conductor body of the field-effect type having an insulating gate electrodes and electric conductors which emerge from the housing and are located in a circle. The conductors are surrounded by a closed, flexible ring of an electrically conductive rubber material su...
Our invention relates to open coil electric heating elements of conventional construction but treated to resist corrosion and to electrically insulate exposed metallic surfaces. In accordance with the invention, the component parts of the heater, except the coiled resistance wire and in some cases the supporting insula...
An electric switching unit for preventing oxidation of copper-base contacts in contactors comprises a body (2), comprises an electromagnet (11) having a stationary yoke (7) and a moving armature (15) in cooperating relation with a plurality of switches (36). A protective casing (42) is fixed on the body so as to contai...
Circuitry for monitoring the function of electric load, an output stage and a control circuit for driving the output stage and the lines that connect these elements. The circuitry includes at least one fault acquisition logic that is connected in parallel with the output stage. The fault acquisition logic has a termina...
A method of mounting an electric component on a circuit substrate, including the steps of moving one of a suction nozzle and an electric-component supplying device toward the other of the nozzle and the supplying device, so that the nozzle applies a suction to the component supplied by the supplying device and thereby ...