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:
Sep. 15, 1987
Filed:
May. 17, 1985
Robert E Harwood, Princeton, NJ (US);
Frank Z Hawrylo, Trenton, NJ (US);
RCA Corporation, Princeton, NJ (US);
Abstract
An apparatus and method for imparting a sharp, defect-free outside corner of a desired angle to a metal workpiece are disclosed. The apparatus comprises two separate cutting tools, each with a distinct cutting direction. The tools are juxtaposed such that their leading surfaces are adjacent to each other and that their respective cutting edges intersect at the desired angle. This provides that the cutting directions of each tool are opposite one another. In using the improved cutting apparatus, the workpiece is secured and the apparatus must be movable along the x, y and z axes. By cutting the first and second surfaces of the workpiece in sequence with the first and second cutting edges of the present apparatus respectively, a sharp defect-free corner of the desired angle can be imparted to the workpiece. A specific application for the present invention is in the fabrication of intricate copper products, such as heatsinks for semiconductor devices.