Unique Technologies, LLC

Ntc, Inc.

Joachim Wottrich

Ronald A Coia

Mitchell Budniak

A system for locating a circuit interrupter associated with a selected branch circuit. The system includes a passive transmitter that creates a current spike at a predetermined frequency and a receiver broadly tuned about that predetermined frequency. The current spike signal has a sufficiently short spike duration and a sufficient amplitude so as to substantially minimize development of a sympathetic signal on other branch circuits adjacent to the selected branch circuit. The passive transmitter includes a voltage controlled switch in series with a charge storage device. The receiver drives a user-perceivable signaling device upon sensing the current spike. Related subsystems and methods are also disclosed.

Multi-test circuit breaker locator having a transmitter and a receiver

A test system for distinguishing a particular AC distribution circuit interrupting device from among a plurality of AC distribution circuits interrupting devices. The test system comprises a transmitter for placing an identification signal on an AC power distribution circuit and a receiver for detecting the identification signal. The transmitter comprises means for generating an FM modulated identification signal, and means for coupling the identification signal to the AC power distribution circuit. The receiver comprises preselector means for selecting a predetermined band of frequencies for further processing, first detector means for detecting a signal within the predetermined band of frequencies, second detector means for detecting a modulating signal, and processor means for processing indications from the first and second detectors, and for activating a discernible indication of receiver operation. The transmitter may further comprise a plurality of indicator means for providing an indication that an electrical receptacle to which the transmitter is connected is wired in accordance with a predetermined arrangement.

Electrical circuit breaker locator with transmitter and receiver

A system for locating the particular circuit breaker associated with a branch circuit. The system includes a transmitter is connected to the hot lead of the branch circuit to inject a signal having a predetermined frequency. The system further includes identification circuits permanently associated with each circuit breaker. The identification circuit includes an indicator powered by a rectifier connected to the hot lead of the associated branch circuit. A band pass filter within the identification circuit passes the predetermined frequency, which when present biases the gate of a controlled switch which is placed in series with the indicator lamp such that when the predetermined frequency is present on the hot lead the indicator lamp is turned on. Each identification circuit may also include a low pass filter connected in series between the hot lead of the branch circuit and the bus so as to block the predetermined frequency signal from being distributed via the bus bar into the identifying circuits associated with other branch circuits. In one embodiment, the identification circuit and circuit breaker are enclosed within a single enclosure, which may further include a socket for simplified connection to at least the hot lead and bus bar.

Electronic circuit for identifying circuit breaker associated with

The present invention relates to an electronic system for identifying the circuit interrupter device associated with a particular power outlet receptacle on a power line, and to a method or means for identifying the circuit interrupter device.

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Hamburg-Norderstedt, Germany

Joachim Wottrich