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. 03, 1995
Filed:
Jan. 31, 1994
Atsushi Taneda, Aichi, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An electronic discharge machining system in which an electrode and workpiece are coupled between first and second power supply circuits. The first power supply circuit includes a DC power source, a switching element, and a current limiting resistor, which are controlled by a control circuit. The second power supply circuit includes a machining gap status detecting DC power supply, which is composed of a voltage source and a controllable output impedance, and a switching element, all of which are controlled by a control circuit. The secondary power supply circuit is controlled by the control circuit, which sets and controls the voltage source and/or the output impedance of the machining gap status detecting DC power supply in accordance with machining conditions, such as the voltage detected across the machining gap.