IP Library Granted Patent US 8,747,721
Granted Patent B2
US 8,747,721 · App. 12/607,195 · Granted Jun 10, 2014

Methods, systems, and products involving sheet products

Inventors: Ehteshamul Haque (Duluth, GA); Chiehlung Jay Hsu (Alpharetta, GA); David L. B. Knudsen (Buford, GA); Bruce Jerome Kokko (Neenah, WI); Steven B. Mattheeussen (Greenville, WI)
Assignee: Georgia-Pacific Consumer Products LP
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Quick Facts
Patent No.
US 8,747,721
App. No.
12/607,195
Granted
Jun 10, 2014
Kind
B2
Abstract

A method for forming a tubular sheet product roll includes providing a sheet product roll having a first configuration and a void, centering a rotational axis of the sheet product roll on a longitudinal axis of a first tool, and inserting the first tool into the void of the sheet product roll to define an inner diameter of the void and to form the sheet product roll having a second configuration different from the first configuration.

Claims (16)

1. A method for forming a tubular sheet product roll including:

providing a sheet product roll having a first configuration, a void and a moist portion surrounding the void;

centering a rotational axis of the sheet product roll on a longitudinal axis of a first tool;

inserting the first tool comprising a plurality of heated regions into the void of the sheet product roll to define an inner diameter of the void and to form the sheet product roll having a second configuration different from the first configuration; and

rotating the first tool inside of the void while heating the plurality of heated regions, wherein the heating of the plurality of heated regions and the rotation of the first tool cause a removal of at least a portion of a moisture from the moist portion.

2. The method of claim 1 , wherein the first tool is a mandrel.

3. The method of claim 1 , wherein the method further comprises moistening portions of the sheet product roll defining the void prior to inserting the first tool.

4. The method of claim 1 , wherein the method further comprises aligning the rotational axis of the sheet product roll over a reference point with a centering device having a plurality of sliding dogs disposed radially about the reference point operative to secure the sheet product roll.

5. The method of claim 1 , wherein a second tool is inserted along the rotational axis of the sheet product roll in a direction opposing the first tool.

6. The method of claim 1 , wherein the method further comprises forming a first indentation portion on the sheet product roll concentric to the rotational axis of the sheet product roll.

7. The method of claim 6 , wherein the first indentation portion is formed by a flared portion of the first tool.

8. The method of claim 6 , wherein the method further comprises forming a second indentation portion on the sheet product roll concentric to the rotational axis of the sheet product roll on a side of the sheet product roll opposing the first indentation portion.

9. The method of claim 1 , wherein the method further comprises emitting a liquid from a port in the first tool responsive to inserting the first tool into the void of the sheet product roll.

10. The method of claim 1 , wherein the inner diameter of the void is defined by an interior portion of the sheet product roll and the inner diameter of the void is concentric with a circumference of an outer surface of the sheet product roll.

11. The method of claim 9 , wherein the liquid includes an adhesive.

12. The method of claim 9 , wherein the liquid includes polyethylene glycol.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2018
From: GEORGIA-PACIFIC CONSUMER PRODUCTS LP
To: GPCP IP HOLDINGS LLC
Reel/Frame 045188/0257 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 26, 2010
From: HAQUE, EHTESHAMUL; HSU, CHIEHLUNG JAY; KNUDSEN, DAVID L.B.; KOKKO, BRUCE JEROME; MATTHEEUSSEN, STEVEN B.
To: GEORGIA-PACIFIC CONSUMER PRODUCTS LP
Reel/Frame 023846/0134 →
Continuity (1)
Related Publication 20110095117A1 · Apr 28, 2011