Class 307/146 - UNIDIRECTIONAL CONDUCTOR SYSTEMS

Subclass of Class 307 - Electrical transmission or interconnection systems
Definition: Subject matter relating to unidirectional conductor systems.
No. of patents: 29
Last issue date: 02/28/2006

Number	Title	Issue Date
7005763	Reconfigurable signal distribution system The invention provides a modular distribution system having central distribution panel for receiving a plurality of services at an input and having a plurality of outputs each connected to an outlet at a remote location. A central region is provided in the central d...	02/28/2006
6791213	Reconfigurable signal distribution system The invention provides a modular distribution system having central distribution panel for receiving a plurality of services at an input and having a plurality of outputs each connected to an outlet at a remote location. A central region is provided in the central d...	09/14/2004
6130812	Protection circuit for high speed communication Provided is a protection circuit for high speed signal communication via a two-wire connection between the two output terminals of a PECL driver and the two input terminals of a PECL receiver. The PECL driver and receiver are supplied with power from indi...	10/10/2000
5843567	Electrical component containing magnetic particles There is disclosed an electrical component having an axial direction and two ends for making electrical contact with another component comprising a plurality of electrically conductive fibers in a matrix, the plurality of the fibers being oriented in the ...	12/01/1998
5659208	Power supply with multiple isolated regulators and isolation mode A method of operating a redundant power supply is disclosed wherein two or more converters are separately connected to a common output node through separate diodes to isolate the converters and allow the outputs to be separately tested for diagnostic purp...	08/19/1997
5592031	Fast bidirectional analog switching system for HF pulses of high instantaneous power The object of the disclosed system is the fast switching of high voltage and short duration pulses on loads which requires high instantaneous intensities, in order to provide said pulses in both directions; the system is capable in switching narrow hand s...	01/07/1997
5528089	Remote power feed device for electronic equipment A remote power feed device for electronic equipment comprises two branches in parallel of which a first branch includes in series as many sets of Zener diodes as there are functional systems to be powered. The other or second branch includes one or more Z...	06/18/1996
4920285	Gallium arsenide antenna switch An RF signal is transformed (12 and 12') to increase its current component, while reducing its voltage component below the voltage that would damage a GaAs switching device (16 or 16'). The current and voltage transformation are selected so that the power...	04/24/1990
4894720	Circuit for selectively outputting high frequency signals When first high frequency signals from an antenna input terminal are selected to be outputted, all transistors constituting first and second switch devices are turned off and a RF modulator is also turned off. Therefore, first high frequency signals are t...	01/16/1990
4839605	Signal compensation circuits A detection system for a sliding lift or elevator door comprises at least two sensors for monitoring the door opening. The sensors are arranged to detect the presence of a moving irregular shape (e.g. human form) in the doorway to reverse the opening acti...	06/13/1989
4774443	Driving mechanism for a switch A driving mechanism, preferably provided for a high-voltage isolating switch (T), contains a driving motor (M) which acts upon a moving contact of the switch via a shaft (W) and is provided with a rotor winding (R) and a stator winding (S), connected in s...	09/27/1988
4686381	Overhead wiring system An overhead wiring system for use in the suspended ceiling of a clean room includes a generally rectangular housing with closed top, side and end walls and a substantially open bottom. A plurality of movable panels are provided in the bottom to close the ...	08/11/1987
4678929	Radio frequency switch In a radio frequency switch, a pair of diodes is coupled in series with polarities opposed between input and output ports. A shunt diode is coupled between the junction point of the pair of diodes and a point of reference potential. A transistor has its m...	07/07/1987
4656364	Antenna switching circuit for a diversity receiving system and branching circuit with a signal attenuation operation An antenna switching circuit which selectively transmits, to a receiver, RF signals from a plurality of antennas including RF signals of different frequency bands such as the VHF band and the MF band using a single output terminal. To prevent a level drop...	04/07/1987
4549116	Electric energy saving two-position combination switching device In one form of the present preferred embodiment of the present invention it relates to a two-position feed-thru electric line cord piercing switching combination, of the rotary and even the rocker type, which saves electric energy by use of a half-wave di...	10/22/1985
4542300	High frequency signal switching device An improved high frequency signal changeover switch is provided for use especially as a horizontal-vertical selection switch in an artificial satellite broadcast receiving system for the purpose of selectively delivering either vertical or horizontal pola...	09/17/1985
4438344	Switched rectifier disc for Edison sockets A disc designed to be placed between a light bulb and the bottom of a mating Edison socket into which the light bulb is screwed is capable of attenuating power by rectifying alternating current to the bulb in one mode and in another mode is capable of pas...	03/20/1984
4342923	D.C. Power transmission line with lightning protection wires A d.c. power transmission line comprises two wire-type systems providing for lightning protection of line conductors (2,3). One of the wire-type systems comprises at least two wires (9) in a spaced relation to each other and is located above a line conduc...	08/03/1982
4229680	Lamp life extender A thin disc-like device for attachment to the base end of an incandescent light bulb to provide an auxiliary voltage reducing circuit interfaced between the central base contacts of the light bulb and its cooperating lampholder for purposes of extending t...	10/21/1980
4223256	Limit switch for D-C positioning motor The limit switch includes a diode which is connected through a spring-operated switch in circuit with a d-c motor such that, when the motor is commanded to operate in one direction and its limit is reached, the diode is placed in blocking direction in the...	09/16/1980
4204129	Capacitance-compensated cable This invention relates to the transmission of electric power and in particular provides an electric power-transmission system having reduced vector regulation, voltage drop, and power loss through the inclusion of capacitance in the cable in series betwee...	05/20/1980
4180746	Interlocked battery jumper cable assembly A battery jumper cable assembly (15) including a pair of solenoids (100,200) connected to provide an interlock preventing the direct connection of two batteries (10,20) in series with each other by means of such cable assembly is disclosed. The operation ...	12/25/1979
4167688	Composite illumination fixture and control circuit therefor A control circuit including at least one switch and a plurality of rectifiers for selectively applying a-c utility power to either or both of two remote electrically-powered apparatus at respective first and second states of rectification by means of a co...	09/11/1979
4166236	Electric energy saving three-position combination switching device In one form of the present preferred embodiment of the present invention it relates to a three-position feed-thru electric line or wire cord piercing switching combination of the rotary type which at least saves electric energy by use of a half-wave diode...	08/28/1979
4140962	High voltage regulator using light dependent resistor A high voltage power supply is regulated using a light dependent resistor. A feedback circuit from the load controls the input to a light emitting diode which is optically coupled to a light dependent resistor connected in series with the load. Increases ...	02/20/1979
4117376	Electric energy saving incandescent lamp socket combination switching device An improved electric energy saving incandescent lamp socket combination having in one embodiment a two-position electric "off-on" switching means, and in another embodiment having a four-position electric "off", low, medium and high switching means for a ...	09/26/1978
4101811	Delayed extinction control Alternating current energized appliances, particularly lamps, are extinguished in delayed fashion with the power delivered to the appliance being sharply reduced during at least the last portion of the extinction cycle. Delayed interruption of power is ac...	07/18/1978
3983407	Voltage-adjusting electrical plug Means for connecting an electrical load system to a voltage source of a predetermined first voltage level for the operation of said system at optionally one of said first voltage level and a lower second voltage level, said means comprising an electrical ...	09/28/1976
3934189	Power supply regulator high-line shunt bypass A power supply system which reduced total power consumption during high-line operation by providing a portion of the load current normally supplied by the series regulator of a series type regulated power supply from a lower voltage source through a passi...	01/20/1976

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Class 307/146 - UNIDIRECTIONAL CONDUCTOR SYSTEMS