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. 16, 1993
Filed:
Mar. 02, 1992
Bernard J Wallis, Dearborn, MI (US);
Other;
Abstract
A method and apparatus for cutting corrugated webs having louvers from a strip which is continuously formed to define undulating fins or corrugations extending transversely of the strip. The method and apparatus comprises periodically interrupting the movement of the corrugated strip, locating the strip, and severing the corrugation along an apex by moving a shearing cutting blade such that the blade is moved to engage and cut beginning at one longitudinal edge and progressively across the apex of the corrugation to the other edge of the corrugation. The apparatus functions to lift the knife blade initially to separate the corrugation thereby moving louvers out of contact with one another such that the louvers would not be severed by the movement of the knife blade.