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. 08, 1980
Filed:
Jun. 14, 1978
Applicant:
Inventor:
John D Gibbon, Charlotte, NC (US);
Assignee:
Fiber Industries, Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29D / ; B29C / ;
U.S. Cl.
CPC ...
425461 ; 425465 ; 4258 / ;
Abstract
A slit extrusion die with a modified entry port which allows extrusion of a low denier tape at high draw down ratios is disclosed. The die has an entry port wherein the depth of the slit is greater at both ends than at the middle by an amount equal to 0.1 to 0.4 times the length of the slit.