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:
Aug. 27, 1991
Filed:
Dec. 20, 1989
Applicant:
Inventor:
Takeo Fukuroi, Uozu, JP;
Assignee:
Yoshida Kogyo K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; B29L / ;
U.S. Cl.
CPC ...
264146 ; 264157 ; 264168 ; 264283 ; 264296 ; 264320 ; 425814 ;
Abstract
A method of forming a chain of meandering or zig-zag coupling elements for slide fasteners includes dividing or bifurcating a continuous length of substantially cross-sectionally circular monofilamentary material axially into identical halves of substantially semi-circular cross-section immediately prior to introduction to a forming apparatus. The identical halves may be provisionally joined together to provide a cross-sectionally circular monofilament and divided back into respective halves immediately prior to formation thereof into respective rows of coupling elements for slide fasteners.