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:
Aug. 15, 2000
Filed:
Aug. 24, 1998
Mark J Gleason, Madisonville, KY (US);
Barry T Malone, Dawson Springs, KY (US);
Terri K Brown, Central City, KY (US);
Darrin L Smith, Madisonville, KY (US);
Brian K Howell, Madisonville, KY (US);
Jason S Mogle, Hanson, KY (US);
Edwin D Tyler, Princeton, KY (US);
Michael D Simcox, Providence, KY (US);
General Electric Company, Cincinnati, OH (US);
Abstract
In the electrochemical drilling of a hole completely through a workpiece, the present invention proposes operating the power supply in a current regulating mode. Initially, a hollow cathode is positioned adjacent to a workpiece in which one or more holes are to be drilled. An electrolyte is flowed through the cathode and against the workpiece. A constant electrical current is applied between the cathode and the workpiece across the electrolyte. Then the cathode is advanced at a constant rate toward the workpiece for the drilling of the hole(s), while maintaining the electrolyte flow and current substantially constant.