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:
Jul. 02, 1991
Filed:
Jan. 30, 1990
Mitsubishi Denki K.K., Tokyo, JP;
Abstract
A wire electrical discharge machining apparatus comprising a nozzle for a machining liquid for jetting the machining liquid from a jet hole, a surrounding member for intercepting the flow of the machining liquid jetted from the nozzle so as to prevent the machining liquid from flowing out to a portion other than the spark gap, and a holding device for holding the surrounding member so as to removably mount the surrounding member on the nozzle and so that the surrounding member does not slip off while mounted. The holding device facilitates both the operation of mounting and dismounting the surrounding member on and from the nozzle and replacement of the surrounding member. Since the surrounding member does not slip off while it is mounted, smooth preparation and working is enabled.