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:
May. 30, 2023
Filed:
Jan. 15, 2021
Applicant:
Sonoco Development, Inc., Hartsville, SC (US);
Inventors:
Brian P. Couchey, Inman, SC (US);
John Wrenn, Greenville, SC (US);
Assignee:
Sonoco Development, Inc., Hartsville, SC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 75/28 (2006.01); B65H 19/28 (2006.01); B65H 18/28 (2006.01); B65H 75/02 (2006.01); B65H 75/00 (2006.01); B65H 75/10 (2006.01);
U.S. Cl.
CPC ...
B65H 75/28 (2013.01); B65H 18/28 (2013.01); B65H 19/28 (2013.01); B65H 75/00 (2013.01); B65H 75/02 (2013.01); B65H 75/10 (2013.01); B65H 19/283 (2013.01);
Abstract
A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.