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. 23, 2002
Filed:
Feb. 16, 2001
William E. Lawson, Somerset, WI (US);
Other;
Abstract
An apparatus and method for high speed laser perforation of a web involves a web-bearing cylinder receiving the web in a wrapped spiral pattern. The web-bearing cylinder includes a slit along a circular circumference of the cylinder. A laser guiding tube is provided for propagation of a laser beam within the web-bearing cylinder. An inner cylinder is also provided in the web-bearing cylinder. The inner cylinder has an axis, supports a reflecting mirror adjacent to the laser guiding tube to direct the laser beam in the slit in the web-bearing cylinder, and is rotatable around the axis to adjust an orientation of the reflecting mirror so as to direct the laser beam around the circular circumference of the web-bearing cylinder in the slit.