Static reduction roller and method for reducing static on a web

US9908733B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Fred J. Roska · Woodbury, US
• Chris J. Tanley · Woodbury, US
• Kevin B. Newhouse · Houlton, US
• Bruce E. Tait · Woodbury, US

Key dates

• Filing date: Dec 17, 2013
• Grant date: Mar 6, 2018
• Expiry date: Dec 17, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2515/70
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The present disclosure describes a looped pile static reduction roller (100, 200, 300), an apparatus (400) including the looped pile static reduction roller, and a technique to neutralize static and static patterns from a polymeric film surface during processing, to enable higher speeds and fewer defects during web transport. The looped pile static reduction roller includes a static reduction engagement cover (160, 260, 360) that is resilient and can facilitate discharge of static from the web to ground before, during, and after contact with a charged web (320, 420).