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:
Jun. 30, 2020
Filed:
Aug. 29, 2018
Fanuc Corporation, Yamanashi, JP;
Takaaki Fujii, Yamanashi, JP;
Zheng Tong, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
The cutting fluid supply device of a machine tool includes a storage tank of a cutting fluid, a cutting fluid discharge port which discharges the cutting fluid, at least one pump which feeds the cutting fluid to the cutting fluid discharge port, a first filter, a second filter which has filter performance different from the first filter, a path switching unit which switches the paths of the cutting fluid and a control unit, and the control unit controls the pump and the path switching unit so as to switch, as the paths, to a first path along which the cutting fluid is fed without being passed through the filters, a second path along which the cutting fluid is passed through the first filter and is fed and a third path along which the cutting fluid is passed through the second filter and is fed.