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. 31, 2020
Filed:
Mar. 12, 2019
Applicant:
Intpro, Llc, Uniontown, OH (US);
Inventor:
Herbert B. Kohler, Uniontown, OH (US);
Assignee:
INTPRO, LLC, Uniontown, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31F 1/28 (2006.01); B31F 1/22 (2006.01); B65H 23/24 (2006.01);
U.S. Cl.
CPC ...
B31F 1/2836 (2013.01); B31F 1/225 (2013.01); B31F 1/2863 (2013.01); B31F 1/2877 (2013.01); B65H 23/24 (2013.01);
Abstract
An apparatus for introducing transverse trapezoidal corrugations into a traveling web is provided, and includes a plurality of corrugating rollers for imparting corrugations to the web. In disclosed embodiments four such rollers are provided in a roller train defining respective first, second and third nips therebetween, wherein the teeth of the first and second rollers have rounded distal faces and those of the third and fourth rollers have flattened distal faces. Methods of yielding a trapezoidal corrugated web also are disclosed.