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:
Apr. 14, 2020
Filed:
Aug. 26, 2016
Applicant:
Fanuc Corporation, Yamanashi, JP;
Inventors:
Nan Han, Yamanashi, JP;
Yasuo Nakashima, Yamanashi, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23H 1/00 (2006.01); B23H 1/10 (2006.01); C23F 11/10 (2006.01); C23F 11/00 (2006.01); B23H 1/08 (2006.01); B25J 11/00 (2006.01); G01N 21/27 (2006.01);
U.S. Cl.
CPC ...
B23H 1/10 (2013.01); B23H 1/08 (2013.01); B25J 11/0075 (2013.01); C23F 11/00 (2013.01); C23F 11/10 (2013.01); G01N 21/27 (2013.01); Y10S 901/43 (2013.01); Y10S 901/44 (2013.01);
Abstract
An electrical discharge machine is disclosed having a concentration detection function for a rust inhibitor containing an organic compound uses coloring of a metal complex produced through the reaction of the rust inhibitor with a color reagent to enable a detector to detect the change of characteristics involved in the change of the color of the metal complex. A predetermined amount of working fluid is sampled in a sampling cell at regular time intervals, a predetermined amount of color reagent is added to the working fluid, and the change of the color of the working fluid is detected by the detector.