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:
Feb. 28, 1989
Filed:
Oct. 07, 1987
Masaru Shinkai, Aichi, JP;
Makoto Tanaka, Aichi, JP;
Jun Aramaki, Aichi, JP;
Masaaki Onizuka, Aichi, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A wire electrode type electric discharge machining device including a wire electrode confronting a workpiece with a small space therebetween, wherein electric discharge is caused to take place in the small space to machine the workpiece; an upper wire guide for slidably supporting the wire electrode above the workpiece; a lower wire guide for slidably supporting the wire electrode below the workpiece; a driver for supporting and moving the workpiece relative to the wire electrode in the horizontal direction; a lower arm for holding the lower wire guide at a position confronting the upper wire guide means. The electric discharge machining device further includes a protecting cover for covering the lower arm with a space therebetween, a splash preventing device which is movable with expansion and contraction with the movement of the workpiece for preventing machining solution jetted towards the small space between the workpiece and the wire electrode from splashing, and a holding device for fixedly holding the splash preventing device.