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. 28, 2015

Filed:

Jun. 14, 2011
Applicants:

Atsushi Itokazu, Tokyo, JP;

Hidetaka Miyake, Tokyo, JP;

Tatsushi Sato, Tokyo, JP;

Takashi Yuzawa, Tokyo, JP;

Kazuhiko Fukushima, Tokyo, JP;

Inventors:

Atsushi Itokazu, Tokyo, JP;

Hidetaka Miyake, Tokyo, JP;

Tatsushi Sato, Tokyo, JP;

Takashi Yuzawa, Tokyo, JP;

Kazuhiko Fukushima, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H 1/10 (2006.01); B23H 7/10 (2006.01); B23H 1/02 (2006.01); B23H 9/00 (2006.01);
U.S. Cl.
CPC ...
B23H 1/10 (2013.01); B23H 1/028 (2013.01); B23H 7/105 (2013.01); B23H 7/107 (2013.01); B23H 9/00 (2013.01);
Abstract

A wire electric discharge machining apparatus includes a wire electrode, a guide roller that arranges wire electrodes in parallel by winding the wire electrode therearound, a plurality of slidable contact conductors that are in slidable contact with the wire electrodes arranged in parallel, respectively, and a power feeding jig that holds the slidable contact conductors individually and feeds power individually to the wire electrodes arranged in parallel via each of the slidable contact conductors, in which the power feeding jig includes a plurality of reference surfaces that determine a fixing interval between the slidable contact conductors.


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