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. 10, 1997
Filed:
Mar. 31, 1995
Applicant:
Inventors:
Edward G Adamski, Middletown, CT (US);
David A Niezelski, Plainville, CT (US);
Richard H Shaw, Groton, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H / ; B23H / ; H01R / ; C25F / ;
U.S. Cl.
CPC ...
219 6915 ; 219 6917 ; 29889721 ; 29557 ; 204212 ; 2042 / ; 204292 ; 204293 ; 205665 ; 205686 ;
Abstract
An electrode for use in a rotary electrical discharge machining (EDM) device for producing at least one curved hole in an article includes at least one curved tooth. The curved tooth lies in a plane. A perpendicular line to that plane is parallel to the axis of rotation on the rotary EDM device. At least one curved cooling hole is machined in the article.