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. 17, 1989
Filed:
Dec. 28, 1984
Applicant:
Inventor:
John P Ross, Cupertino, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156552 ; 226 64 ; 226 67 ; 226 68 ; 271267 ;
Abstract
A feed mechanism for a tape applying machine in the semiconductor lead frame arts, especially suitable for discrete pieces of lead frame, in which pins are inserted into holes in the lead frame and advanced periodically. The pins are deliberately made smaller than the holes and moved in such a way as to always return to the center of the holes, well clear of the edges, before entering or withdrawing from the holes.