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:
Oct. 29, 2013
Filed:
Jun. 03, 2008
Richard M. Jendrejack, Hudson, WI (US);
William B. Kolb, West Lakeland, MN (US);
Robert A. Yapel, Oakdale, MN (US);
Peter T. Benson, North St. Paul, MN (US);
William R. Dudley, Geneseo, NY (US);
Raghunath Padiyath, Woodbury, MN (US);
Richard M. Jendrejack, Hudson, WI (US);
William B. Kolb, West Lakeland, MN (US);
Robert A. Yapel, Oakdale, MN (US);
Peter T. Benson, North St. Paul, MN (US);
William R. Dudley, Geneseo, NY (US);
Raghunath Padiyath, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Methods and apparatus () to neutralize the charge on a moving web () by splitting the field present on the web (). One portion of the field is removed by a grounded element () proximate to, and optionally contacting, one side of the web (). Proximate the opposite side of the web, the apparatus includes an ion source (), which provides ions to the web () to neutralize the charge remaining on the web (), and a second grounded element () positioned between the ion source () and the web (). The methods provide a web () that is net neutralized and is also dual-side or bipolar neutralized.