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:
Dec. 31, 1991
Filed:
May. 17, 1991
Applicant:
Inventors:
Assignee:
Yoshida Kogyo K. K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
29408 ; 29712 ; 29766 ;
Abstract
A method is disclosed for manufacturing slide fasteners from a single homogeneous elongate stringer chain or a stringer chain comprising a plurality of interconnected stringer chains of different characteristics having first standard element-devoid space portions. The method comprises marking the stringer chain at spaced apart locations by providing second element-devoid space portions greater in length than the first standard space portions and detecting the second space portions to trigger operation of respective operative units in the manufacturing apparatus.