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. 27, 2004
Filed:
Mar. 18, 2002
Applicant:
Inventors:
Assignee:
Fanuc Ltd., Yamanashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H 1/08 ; B23H 1/10 ;
U.S. Cl.
CPC ...
B23H 1/08 ; B23H 1/10 ;
Abstract
For maintenance and management of filters in a wire electric discharge machine, a sensor for detecting the filtration pressure is disposed between the filter and pump in the working fluid circulation channel. The sensor periodically senses the pressure and its output (transition of water pressure) is stored and sequentially displayed as a graph on a display device to allow monitoring of filter clogging by checking such sensor output at the time of commencing the processing.