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:
May. 25, 1993
Filed:
Oct. 15, 1990
David Sepavich, Dalton, MA (US);
William M Stone, Lenox, MA (US);
Beloit Technologies, Inc., Wilmington, DE (US);
Abstract
An apparatus and method for cross-cutting a traveling web of material, such as paper, while winding the traveling web into successive rolls of a specified diameter includes a laser, a pair of spaced adhesive applicators and energy means for activating the adhesive to change it from an essentially inert to a web adhesive state. A pair of horizontally arrayed drums support a core on which the traveling web is wound. Upstream of the core, over the lower periphery of one of the drums, the on-coming web has its drum-supported surface exposed to a transversely moveable laser which cuts the web transversely to its direction of travel. Upstream of the transversely actuated laser are a pair of adhesive applicator nozzles which are spaced in the web traveling direction and movable transversely with the laser. An energy means is mounted between the adhesive nozzles and laser to activate the adhesive sprayed by the nozzles. The traveling web can, thus, be severed by the laser and have its trailing edge glued to the web roll being wound while the leading edge of the severed web can be glued to a new core inserted in the winder between the drums.