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:
Nov. 28, 1989
Filed:
Jul. 05, 1988
Applicant:
Inventors:
Walter H Dziura, Bethlehem, CT (US);
Angelo Fusco, Waterbury, CT (US);
Parviz Khosravi, Gainesville, GA (US);
Assignee:
Scovill Fasteners Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; A44B / ;
U.S. Cl.
CPC ...
29 332 ; 29408 ; 29768 ;
Abstract
Apparatus grips and pulls zipper chain along from supply to a desired finite length, installing slider on the way. When next gap in chain is detected by a finger which inserts itself into gap and abruptly stops further advance of tape, a cutter closes to cut chain to length. Puller is driven by air cylinder, and back pressure is applied soon after puller starts. This reduces pulling force and eliminates tearing of zipper tape as tape is abruptly stopped.