Slit paper expansion method and apparatus

Patent metadata

Field	Value
Publication number	US-11220395-B2
Application number	US-201715820514-A
Country	US
Kind code	B2
Filing date	Nov 22, 2017
Priority date	Jan 19, 2016
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

An expansion devise includes an unexpanded slit sheet roll that is wound on a paper core that is wider than the slit sheet paper. The paper core is placed into a yoke that holds the paper in position on each side of the unexpanded slit sheet material. An adjustable downward pressure is exerted on the paper core and the paper core exerts pressure on the yoke. As the paper is pulled, this downward pressure creates the friction required to enable the unexpanded slit sheet to be unwind and fed while simultaneously expanding. A blank sheet is formed into a box that stabilizes slit paper sheet wound around a core member.

First claim

What is claimed is:

1. A corrugated shipping container formed from a blank sheet of corrugated board, said blank sheet having:
a) four rectangular main panels, each contiguous with at least one other of said four rectangular main panels;
b) a first set of four foldable panels, each panel of said first set of foldable panels being contiguous with a first edge of a respective rectangular main panel of said four rectangular main panels, and separated therefrom by a fold line;
c) a second set of four foldable panels, each panel of said second set of foldable panels being contiguous with a second edge of a respective rectangular main panel of said four rectangular panels, and separated therefrom by a fold line;
d) each foldable panel of said first set of four foldable panels being proximate to but not contiguous with at least one proximate panel of said first set of four foldable panels;
e) each foldable panel of said second set of four foldable panels being proximate to but not contiguous with at least one proximate panel of said second set of four foldable panels;
f) each of two of said first set of four foldable panels being subdivided by a fold line and forming a first and a second foldable end panel, wherein the first foldable end panel is foldable to a position substantially perpendicular to a plane of the respective contiguous rectangular main panel and the second foldable end panel is foldable to a position substantially parallel to the plane of the respective contiguous rectangular main panel, such that the second foldable end panel extends inwardly into said corrugated shipping container in order to support a first end of a paper roll and a first end of a paper core within the corrugated shipping container, said second foldable end panel supporting the first end of the paper core by a substantially planar outer surface of the second foldable end panel that extends alongside the periphery of the first end of the paper core a distance greater than a thickness of the second foldable end panel;
g) each of two of said second set of four foldable panels being subdivided by a fold line and forming a third and a fourth foldable end panel, wherein the third foldable end panel is foldable to a position substantially perpendicular to a plane of the respective contiguous rectangular main panel and the fourth foldable end panel is foldable to a position substantially parallel to the plane of the respective contiguous rectangular main panel, such that the fourth foldable end panel extends inwardly into said corrugated shipping container in order to support a second end of the paper roll and a second end of the paper core within the corrugated shipping container, said fourth foldable end panel supporting the second end of the paper core by a substantially planar outer surface of the fourth foldable end panel that extends alongside the periphery of the second end of the paper core a distance greater than a thickness of the fourth foldable end panel.

2. The corrugated shipping container of claim 1 , further comprising:
each of said four contiguous rectangular main panels being rotated about a fold line to a position at a right angle to a contiguous rectangular main panel, and
a tab panel contiguous with a first end panel of said four rectangular main panels, being rotated to a position wherein it is in an overlapping contact with a second end panel of said four rectangular main panels and secured thereto.

3. The corrugated shipping container of claim 2 , further comprising:
a) a roll of expandable slit sheet paper wound on an interior core member,
b) said core member having an axial length that is greater than the width of the slit sheet paper that is wound on said core member;
c) said roll of expandable slit sheet paper being positioned within said four contiguous rectangular main panels, each of said rectangular main panels being rotated about a fold line to a position at a right angle to a contiguous rectangular main panel, and having a first end panel of said four rectangular main panels rotated to a position in contact with a second end panel and secured thereto,
d) said second foldable end panel being rotated about a fold line to a position substantially parallel to both a rectangular main panel and the axis of said core member and positioned to contact with said core member and having an edge positioned to contact with said roll of expandable slit paper;
e) said fourth foldable end panel being rotated about a fold line to a position substantially parallel to both a rectangular main panel and the axis of said core member and positioned to contact with said core member and having an edge positioned to contact with said roll of expandable slit paper.

4. The corrugated shipping container of claim 3 , further comprising:
said first end panel of said four rectangular main panels being secured to said second end panel by an overlapping tab panel.

5. The corrugated shipping container of claim 3 , further comprising:
said first and said second foldable end panels being folded such that said second foldable end panel extends inward to press against the wound paper and to rub against an exterior surface of the paper core, and
said third and said fourth foldable end panels being folded such that said fourth foldable end panel extends inward to press against the wound paper and to rub against an exterior surface of the paper core.

6. The corrugated shipping container of claim 1 , further comprising:
a tab panel contiguous with a first end panel of said four rectangular main panels, said tab panel being rotatable to a position wherein it is in an overlapping contact with a second end panel when said panels are rotated into a shipping container configuration.

7. A method of supporting a roll of expandable slit sheet paper within a corrugated shipping container, comprising:
1) providing the corrugated shipping container of claim 1 ; and
2) placing inside the corrugated shipping container a roll of expandable slit sheet paper that is wound on an interior core member, the core member having an axial length that is greater than the width of the slit sheet paper that is wound on said core member;
3) rotating said second foldable end panel about a fold line to a position substantially parallel to both a rectangular main panel and the axis of said core member and positioned to contact with said core member and having an edge of the second foldable panel positioned to contact with said roll of expandable slit paper;
4) rotating said fourth foldable end panel about a fold line to a position substantially parallel to both a rectangular main panel and the axis of said core member and positioned to contact with said core member and having an edge of the fourth foldable end panel positioned to contact with said roll of expandable slit paper.

Assignees

• Goodrich David Paul

Inventors

• Goodrich David Paul

Classifications

• B65D5/001

  stackable · CPC title

• B65B41/12

  Feeding webs from rolls · CPC title

• B65B11/004

  in blanks, e.g. sheets precut and creased for folding · CPC title

• B65D85/672 Primary

  on cores · CPC title

• B65D5/4266

  Folding lines, score lines, crease lines · CPC title