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.
Patent No.:
Date of Patent:
Nov. 19, 2013
Filed:
Oct. 24, 2006
Takashi Hashimoto, Chiyoda-ku, JP;
Yasuo Onodera, Chiyoda-ku, JP;
Tatsushi Sato, Chiyoda-ku, JP;
Koichiro Hattori, Chiyoda-ku, JP;
Hisashi Yamada, Chiyoda-ku, JP;
Takashi Hashimoto, Chiyoda-ku, JP;
Yasuo Onodera, Chiyoda-ku, JP;
Tatsushi Sato, Chiyoda-ku, JP;
Koichiro Hattori, Chiyoda-ku, JP;
Hisashi Yamada, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
In a wire electrical discharge machining apparatus, an upper main-discharge power supply is connected between an upper conducting terminal and a workpiece using an upper main-feeder line capable of configuring outward and homeward paths, and a lower main-discharge power supply is connected between a lower conducting terminal and the workpiece using a lower main-feeder line capable of configuring outward and homeward paths. Moreover, a sub-discharge power supply is connected between the upper conducting terminal and the workpiece and between the lower conducting terminal and the workpiece using an upper and a lower sub-feeder lines that have higher impedances than the impedances of the upper and the lower main-feeder lines and can configure outward and homeward paths.