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:
Oct. 08, 1991
Filed:
Mar. 16, 1990
Applicant:
Inventors:
Takeshi Iwasaki, Aichi, JP;
Hiroshi Takeuchi, Aichi, JP;
Assignee:
Mitsubishi Denki K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H / ;
U.S. Cl.
CPC ...
219 6912 ;
Abstract
In a wire electrode supplying device, a contact detector detects when a wire electrode supplied through a wire guide is brought into contact with the upper surface of a workpice, to output a detection signal, and in response to the detection signal, a control unit operates to suspend the supplying of the wire electrode and to insert it into a machining start hole formed in the workpiece while binding it with a jet stream, whereby the wire electrode is positively inserted into the machining start hole even when the wire guide is remote from the workpiece.