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:
Mar. 11, 1986
Filed:
Mar. 09, 1984
Kiyoshi Inoue, Tokyo, JP;
Makoto Onoue, Kanagawa, JP;
Sadao Sano, Kanagawa, JP;
Jun Hayakawa, Kanagawa, JP;
Inoue-Japax Research Incorporated, Kanagawaken, JP;
Abstract
A traveling-wire electroerosion apparatus using a first nozzle disposed at one side of a workpiece so as to coaxially surround the electrode wire moving into the workpiece for directing under a relatively low pressure a cutting liquid medium into a cutting zone in the workpiece and a second nozzle disposed at the other side of the workpiece so as to coaxially surround the electrode wire moving from the workpiece for directing under a relatively high pressure the cutting liquid medium into the cutting zone. A liquid flow guidance member, generally in the form of an annular disk or discus, is disposed at that one side of the workpiece and adjacent thereto so as to overlie at least a region of the cutting slot generated behind the advancing electrode wire, which region is adjacent the nozzle opening of the first nozzle. The flow guidance member has a liquid escape passage formed therein adjacent the said nozzle opening and a flow deflecting surface overlying the said region for impeding direct flow of the flushing liquid medium from the cutting slot and creating a high-velocity stream of the high-pressure cutting liquid medium from the second nozzle flowing through and out of that liquid escape passage.