The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 01, 1997

Filed:

Jan. 17, 1995
Applicant:
Inventors:

Kenji Ohta, Kawasaki, JP;

Yoshiyuki Inoue, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
361191 ; 307 38 ;
Abstract

A submarine cable branching system includes a plurality of directional relays in respective power feed paths branched at a common node, each of the directional relays being energized by a current flowing through the power feed path in a predetermined direction for energizing a corresponding switch provided in a different power feed path to establish a bilateral feed path and further a unilateral feed path, wherein there is provided a bypassing switch across one of the switches that forms the bilateral feed path, such that the bypassing switch is urged to close in response to energization of a self-sustaining relay provided in the unilateral feed path.


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