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:
Jan. 15, 2019
Filed:
Oct. 05, 2015
Applicant:
Fanuc Corporation, Yamanashi, JP;
Inventors:
Ryou Nishikawa, Yamanashi, JP;
Shouji Takahashi, Yamanashi, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23H 1/10 (2006.01); B01D 37/04 (2006.01); B01D 35/143 (2006.01); B23H 1/00 (2006.01); B01D 35/02 (2006.01); B23H 3/10 (2006.01); C02F 1/00 (2006.01); B23H 7/20 (2006.01);
U.S. Cl.
CPC ...
B23H 1/10 (2013.01); B01D 35/02 (2013.01); B01D 35/143 (2013.01); B01D 37/046 (2013.01); B23H 1/00 (2013.01); B23H 3/10 (2013.01); C02F 1/008 (2013.01); B23H 7/20 (2013.01); C02F 2209/03 (2013.01); C02F 2209/40 (2013.01); C02F 2209/445 (2013.01);
Abstract
A wire electric discharge machine has a function of estimating the time for replacement of a filter based on a use situation for the machine. A time Tr during which the filter is serviceable is calculated according to an equation, Tr=|(Pd−Pn)/ΔP|, based on a fluid pressure variation amount ΔP, a current filter fluid pressure Pn, and a filter life pressure. A remaining available time Td for the filter which takes into account the operation rate of the machine is calculated according to an equation, Td=Tr/W.