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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.:

US 10583603 B1

PDFFull Text
Date of Patent:
Mar. 10, 2020

Filed:

Dec. 16, 2015

Apparatus and method for stretching and taking-away polymer films

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventor:

Jeffery N. Jackson, Madison, AL (US);

Assignee:

3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);

Attorneys:

Robert H. Jordan

Gregory D. Allen

Eloise J. Maki

Primary Examiner:

William P Fletcher, III

Int. Cl.
CPC ...
B29C 55/08 (2006.01); B29C 55/20 (2006.01); B65G 15/14 (2006.01); B65G 17/06 (2006.01); B65G 35/00 (2006.01); B29C 31/00 (2006.01); B29C 69/00 (2006.01); B65G 15/46 (2006.01); B65G 17/32 (2006.01); B65G 17/38 (2006.01); B65G 47/08 (2006.01); B29L 11/00 (2006.01);
U.S. Cl.
CPC ...
B29C 55/08 (2013.01); B29C 31/00 (2013.01); B29C 55/20 (2013.01); B29C 69/001 (2013.01); B65G 15/14 (2013.01); B65G 15/46 (2013.01); B65G 17/06 (2013.01); B65G 17/065 (2013.01); B65G 17/323 (2013.01); B65G 17/326 (2013.01); B65G 17/38 (2013.01); B65G 35/00 (2013.01); B65G 47/08 (2013.01); B29C 2793/009 (2013.01); B29K 2995/0051 (2013.01); B29L 2011/00 (2013.01);
Abstract

A film () processing apparatus () including a film stretching device () and a take-away device () and a film processing method using the apparatus. The take-away device receives the film after the stretching device and transports the film along a conveying region in a direction of transport (X). The take-away device includes opposing, first and second conveyor assemblies. The first conveyor assembly has a continuous belt driving a plurality of discrete pads (). Each pad forms a contact face () extending between leading () and trailing edges (). The pads are configured and arranged such that the trailing edge () of a first pad () overlaps the leading edge () of an immediately adjacent second pad () as the first and second pads traverse the conveying region. The overlap is characterized by a line () perpendicular to the direction of transport passing at any given moment through the first and second pads. A shape of the contact face can define a major central axis that is non-perpendicular and non-parallel with the direction of transport.

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