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:
Aug. 11, 1992
Filed:
Jul. 20, 1990
Applicant:
Inventors:
Shigeaki Naka, Aichi, JP;
Kazuaki Hino, Aichi, JP;
Assignee:
Mitsubishi Denki K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H / ; B23H / ;
U.S. Cl.
CPC ...
219 6912 ;
Abstract
An apparatus and method for automatically removing, in an initial stage of a machining operation, a contact of a wire cut type electrode and a workpiece to be machined by an electric discharge generated between the electrode and the workpiece. With such an apparatus and method, even if there occurs a contact between the electrode and workpiece, the electric discharge machining operation can be started according to an NC machining program.