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:
Nov. 05, 1985
Filed:
Jun. 21, 1983
Applicant:
Inventor:
Georges-Andre Marendaz, Meyrin, CH;
Assignee:
Ateliers des Charmilles S.A., Geneva, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364474 ; 364482 ; 364552 ; 219 / ; 219 / ; 219 / ;
Abstract
A process and apparatus for monitoring machining conditions in a travelling wire EDM apparatus. The resistivity of the machining fluid in the machining zone is measured and is compared to a reference value. A signal is provided as soon as the measured resistivity increases beyond the reference value and the signal is used for decreasing or interrupting the machining current.