Locking system to keep movable contacts apart from fixed...

Electrical connectors – Having circuit interrupting provision effected by mating or...

Reexamination Certificate

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Reexamination Certificate

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07955102

ABSTRACT:
Electrical circuit quick connection and disconnection system with automatic short circuit of current transformer secondaries and similar devices, consists of a multipole plug (6) and receptacle (11) system with automatic short-circuit capacity between the poles (7, 12) upon initiation of disconnection between the plug (6) and the receptacle (11), without incurring in the temporary opening of the circuit, for application in current transformer (3) secondary circuits (3B) and other applications requiring the same characteristics. The system is equipped with a number N of paired poles (7, 12), being that each pair of poles (7, 12) is connected to a CT (3) secondary (3B), therefore handling the connection of N CT (3) secondaries (3B). Each pair of poles (J,12) is equipped with a system that, under normal conditions of use, that is, with the plug (6) and the receptacle (11) connected, allows the normal passage of current from the CT (3) secondary (3B) to the load (14) connected to the latter, without short-circuiting the CT (3) secondary (3B).

REFERENCES:
patent: 3322964 (1967-05-01), Walter et al.
patent: 3512043 (1970-05-01), Werner et al.
patent: 4871323 (1989-10-01), Ohsumi
patent: 5601442 (1997-02-01), Harting et al.
patent: 5834919 (1998-11-01), Liu
patent: 5946180 (1999-08-01), Simpson
patent: 7354287 (2008-04-01), Hickam
patent: 2008/0102672 (2008-05-01), Hickam
patent: 4444551 (1996-06-01), None
patent: 0 555 653 (1993-08-01), None
patent: 09-035822 (1997-02-01), None
English Translation of EP 055653 A1 (Bernhard Guglhor Prazisionsteile GMBH & Co) Aug. 18, 1993.
English Translation of DE 4444551 A1 (Wago Verwaltungsgesellschaft MBH) Jun. 5, 1996.
Search Report for co-pending PCT/BR2007/000062 listing relevant art cited by the International Searching Authority.
English Translation of EP 055653 A1 (Bernhard Guglhor Prazisionsteile GMBH & Co) Aug. 18, 1993.
English Translation of DE 4444551 A1 (Wago Verwaltungsgesellschaft MBH) Jun. 5, 1996.

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