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:
Jan. 09, 2007
Filed:
Jul. 20, 2005
William Blake Kolb, Woodbury, MN (US);
Don W. Hendrickson, Hugo, MN (US);
Gary L. Huelsman, St. Paul, MN (US);
William Blake Kolb, Woodbury, MN (US);
Don W. Hendrickson, Hugo, MN (US);
Gary L. Huelsman, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A web coating machine for coating a web of material having first and second faces and a web travel path, the web coating machine including a tension zone in a portion of the web travel path, a fixed port structure over which the web travels, and a web positioning device including at least one gas flow port in the port structure capable of generating a vacuum that brings the first face of the web of material into contact with a portion of the port structure immediately surrounding one of more of the gas flow ports and reduces, retards or arrests longitudinal travel of the web of material through the web coating machine.