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:
Jun. 25, 1991
Filed:
Oct. 31, 1989
Applicant:
Inventors:
David E Slutz, Columbus, OH (US);
Friedel S Knemeyer, Granville, OH (US);
Assignee:
The General Electric Company, Worthington, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H / ;
U.S. Cl.
CPC ...
219 6917 ; 51307 ; 21912169 ; 407114 ; 407115 ;
Abstract
An oversize compact blank having a surface and edges that establish it as oversized is provided. A chip breaker pattern is formed on the compact blank surface. Preferred means for forming the chip breaker pattern include use of a laser, a plunge EDM apparatus, or by ultrasonic abrading. Thereafter, the edges of the patterned oversized compact blank are finished to reduce the size of the blank. When pluge EDM apparatus fitted with a patterned plunger is used, the compact blank must be electrically conductive.