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. 01, 2008
Filed:
Aug. 22, 2006
Marc D. Belcastro, Glen Allen, VA (US);
Loren Duvekot, Goochland, VA (US);
Kenneth E. Rudolph, Jr., Louisville, KY (US);
Marvin G. Thompson, Chesterfield, VA (US);
Marc D. Belcastro, Glen Allen, VA (US);
Loren Duvekot, Goochland, VA (US);
Kenneth E. Rudolph, Jr., Louisville, KY (US);
Marvin G. Thompson, Chesterfield, VA (US);
Philip Morris USA Inc., Richmond, VA (US);
Abstract
A system and method for controlling a cigarette tipping paper perforation process includes supplying the paper in the form of a flexible web from a supply spindle that is mounted for powered angular rotation to a take-up spindle that receives a portion of the flexible web, and the take-up spindle also being mounted for powered angular rotation. A laser beam generator provides at least one laser beam through a series of optics that can include a laser beam expander or contractor, a rotating multi-faceted mirror, collimating lenses and downstream focusing lenses that focus the plurality of laser output beams received from the rotating multi-faceted mirror to burn a plurality of holes in the flexible web of cigarette paper. A control device controls the angular rotation of the supply spindle, the angular rotation of the take-up spindle, tension of the web, laser power and rotation of the multi-faceted mirror.