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:
Mar. 30, 1976
Filed:
Jul. 22, 1974
Applicant:
Inventor:
Ernst Daniel Nystrand, Green Bay, WI (US);
Assignee:
Paper Converting Machine Company, Green Bay, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
270 79 ;
Abstract
A method of zig-zag folding and apparatus therefor wherein two endless belts are each equipped with tuckers and grippers to engage a web continuously and uniformly advanced toward the point of tucker web engagement, the paths of belt travel in the zone contacting the web to be zig-zag folded being of the order of about 60.degree., and wherein there is a means for providing a controlled surplus of the web spaced upstream of the point of folding, the surplus being released at the time of folding to provide precise position of the folds independent of speed.