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:
May. 17, 2016
Filed:
Jul. 02, 2012
Hidetaka Katougi, Tokyo, JP;
Hirokazu Kobayashi, Tokyo, JP;
Hidetaka Katougi, Tokyo, JP;
Hirokazu Kobayashi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
The present invention relates to a cleaning device for electrical-discharge machining fluid that cleans electrical-discharge machining fluid of an electrical-discharge machining device including a machining tank that is filled with the oil-based electrical-discharge machining fluid and in which a workpiece is machined by applying a pulse voltage between the workpiece and a machining electrode and a machining-fluid storage tank storing the electrical-discharge machining fluid to be used in the machining tank, the cleaning device including a cleaning-material storage container, which stores a cleaning material made of a granular porous material having a specific gravity equal to or higher than that of the electrical-discharge machining fluid and a grain diameter between 0.01 millimeters and 10 millimeters, in a flow channel that causes the electrical-discharge machining fluid to flow between the machining tank and the machining-fluid storage tank.