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:
Aug. 11, 2020
Filed:
Sep. 17, 2018
Fanuc Corporation, Yamanashi, JP;
Hirotsugu Kasai, Yamanashi-ken, JP;
Hiroyuki Abe, Yamanashi-ken, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
A dielectric working fluid processor for processing dielectric working fluid used in a wire electrical discharge machine includes: a dirty liquid tank for storing dielectric working fluid containing machining swarf; a filter for removing machining swarf from the dielectric working fluid in the dirty liquid tank; a clean liquid tank for storing the dielectric working fluid from which the machining swarf has been removed by the filter; a pump for supplying dielectric working fluid from the dirty liquid tank to the filter; an inverter for controlling electric power to be supplied to the pump; a pump controller for controlling the rotation speed of the pump by varying the frequency of electric power supplied from the inverter to the pump; and a feed pressure obtainer for obtaining the feed pressure of the dielectric working fluid supplied from the pump to the filter, based on the frequency of the electric power.