IP Library Granted Patent US 9,179,809
Granted Patent B2
US 9,179,809 · App. 14/607,728 · Granted Nov 10, 2015

Stack of interfolded absorbent sheet products

Inventors: Robert C. Hochtritt (Neenah, WI); Andrew M. Conger (Neenah, WI)
Assignee: SCA TISSUE NORTH AMERICA LLC
A47K10/42A47G11/001A47K10/16A47K10/424B32B3/04B65D83/0894B65H45/24A47K2010/428Y10T428/24223Y10T428/24231Y10T428/24264
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Quick Facts
Patent No.
US 9,179,809
App. No.
14/607,728
Granted
Nov 10, 2015
Kind
B2
Abstract

A stack of interfolded absorbent sheet products comprises a plurality of absorbent sheets each of which is itself folded at least twice about axes that are perpendicular to one another. The absorbent sheets have an embossed surface relief of a predetermined pattern or design. Each of the absorbent sheets within the stack comprises at least one pair of panels sandwiched between a pair of adjacent panels of another of the absorbent sheets in the stack.

Claims (14)

1. A stack of interfolded napkins, comprising:

a plurality of absorbent sheets, each having an interfolding fold defining first and second pairs of stacked panels on each side of said interfolding fold,

wherein said absorbent sheets are interleaved so that each of said first and second pairs of stacked panels is disposed between said first and second pairs of stacked panels of an adjacent one of said absorbent sheets,

wherein said stacked panels of said first pair have a substantially common shape and include a first pair of free ends,

wherein said absorbent sheets are detached from one another,

wherein said stacked panels of said second pair have a substantially common shape and include a second pair of free ends, and

wherein said first pair of free ends and said second pair of free ends lie adjacent corresponding first and second pairs of free ends of said adjacent one of said absorbent sheets.

2. The stack of claim 1 , wherein said stacked panels of said first pair have a substantially common set of dimensions.

3. The stack of claim 2 , wherein said stack panels of said second pair have a substantially common set of dimensions.

4. The stack of claim 1 , wherein said stacked panels of said first pair are defined along at least one boundary by a first fold orthogonal to said interfolding fold, said first fold being located opposite said first pair of free ends.

5. The stack of claim 1 , wherein each of said plurality of absorbent sheets has an additional fold orthogonal to said interfolding fold.

6. The stack of claim 1 , wherein each of said plurality of absorbent sheets has an additional fold parallel to said interfolding fold.

7. The stack of claim 1 , wherein each of said absorbent sheets is a single ply paper napkin having a basis weight of from about 10 to 20 lb.

8. The stack of claim 1 , wherein the absorbent sheets comprise an embossed surface relief of a predetermined pattern or design.

Assignments (2)
CHANGE OF NAME Recorded May 18, 2018
From: SCA TISSUE NORTH AMERICA LLC
To: ESSITY PROFESSIONAL HYGIENE NORTH AMERICA LLC
Reel/Frame 046184/0642 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 2, 2015
From: HOCHTRITT, ROBERT C.; CONGER, ANDREW M.
To: SCA TISSUE NORTH AMERICA LLC
Reel/Frame 034862/0402 →
Continuity (8)
Continuation 14136782 · Dec 20, 2013
Continuation 13737736 · Jan 9, 2013
Continuation 13441277 · Apr 6, 2012
Division 13087695 · Apr 15, 2011
Continuation 12577988 · Oct 13, 2009
Continuation 12055334 · Mar 26, 2008
Continuation 10660694 · Sep 12, 2003
Related Publication 20150147521A1 · May 28, 2015