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:
Jul. 29, 2008
Filed:
Nov. 22, 2004
John M. Fiske, Wakefield, MA (US);
James R. Mazur, Derry, NH (US);
Tamas Hetenyi, Concord, MA (US);
Edward J. Zanchi, Waltham, MA (US);
William F. Bolza, Chelmsford, MA (US);
Gregory Mercurio, Billerica, MA (US);
John M. Fiske, Wakefield, MA (US);
James R. Mazur, Derry, NH (US);
Tamas Hetenyi, Concord, MA (US);
Edward J. Zanchi, Waltham, MA (US);
William F. Bolza, Chelmsford, MA (US);
Gregory Mercurio, Billerica, MA (US);
Roll Systems, Inc., Burlington, MA (US);
Abstract
A system and method for cutting continuous web that provides a simplified and direct feed path during loading, and thereafter a more-complex serpentine feed path at an infeed unit for reliable infeed of the web, arranged as either a free loop or a moderately tensioned configuration. Downstream, an indexing drive intermittently pauses the web for the cutter knife to operate. The indexing drive and infeed unit's drive are synchronized by a controller to produce a small horizontally disposed buffer loop therebetween. The buffer loop is maintained within a predetermined range using a sensor, operatively with the controller, that measures the location of the end of the loop, modulating the drives to maintain the buffer loop's (returning) end within a predetermined location about the sensor's sensing field. The system includes an adjustment drive motor for moving a plurality of edge guide sets toward and away from each other in synchronization.