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:
Nov. 19, 2013
Filed:
Nov. 16, 2009
Brian E. Schreiber, Oakdale, MN (US);
William B. Kolb, West Lakeland, MN (US);
Keith R. Bruesewitz, River Falls, WI (US);
Brian E. Schreiber, Oakdale, MN (US);
William B. Kolb, West Lakeland, MN (US);
Keith R. Bruesewitz, River Falls, WI (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method of web cleaning, particularly relatively soft polymeric webs, without using dipping baths or ultrasonic energy. The method includes conveying the web against a backup roller and spraying the web with a high pressure liquid while the web is supported by the backup roller. Thereafter, residual fluid from the high pressure stream is stripped from the web by a gas curtain while the web is supported by the backup roller. In many convenient embodiments, the web is contacted with a cleaning roller while the web is in contact with the backup roller.