Open gap film roll core

US10011449B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Kevin B. Newhouse · Houlton, US
• Bruce E. Tait · Woodbury, US
• Terence A. Lee · Decatur, US
• Christopher Michael Eastman · Adams, US
• Arlie J. Cecil · Hazel Green, US
• Andrew F. Neitzel · Menomonie, US

Key dates

• Filing date: Feb 26, 2016
• Grant date: Jul 3, 2018
• Expiry date: Jun 23, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2408/23
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The disclosure generally relates to a film roll core used for winding a polymeric film around, an apparatus for winding the polymeric film on the film roll core, a process of winding the polymeric film on the film roll core, and a rolled film on the film roll core. The disclosure more particularly relates to an open gap film roll core that is capable of reducing defects in wound films.