Stack formed from connected groups of interfolded sheets
First Claim
1. A stack of interfolded sheets comprising a plurality of groups of interfolded sheets which includes a top group and a bottom group and at least one intermediate group, each of the groups of interfolded sheets having a top panel and a bottom panel, and means for attaching the bottom panel of each group above the bottom group to the top panel of the next lower group.
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Reexamination
Accused Products
Abstract
A stack of interfolded sheets is formed from a plurality of groups of interfolded sheets. Adjacent groups are secured or bonded together so that the bottom sheet of each group pulls the top sheet of the next group. In one embodiment of the invention, the strength of the bond is such that when the bottom sheet of a group is withdrawn through an opening in a package for the stack, the bond releases the top sheet of the next group after the top sheet is partially withdrawn through the opening. In another embodiment of the invention, the strength of the bond is such that the top sheet remains secured to the bottom sheet and is completely withdrawn through the opening. The sheets can be secured by an adhesive bond or by a non-adhesive bond.
71 Citations
28 Claims
- 1. A stack of interfolded sheets comprising a plurality of groups of interfolded sheets which includes a top group and a bottom group and at least one intermediate group, each of the groups of interfolded sheets having a top panel and a bottom panel, and means for attaching the bottom panel of each group above the bottom group to the top panel of the next lower group.
- 16. A stack of interfolded sheets comprising upper and lower groups of interfolded sheets, the upper group of interfolded sheets having a bottom panel and the lower group of interfolded sheets having a top panel, and means for attaching the bottom panel and the top panel to form a sheet which is interfolded with both the upper group and the lower group.
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19. A package of interfolded sheets comprising:
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a container having a plurality of sidewalls, one of the sidewalls having an opening, a stack of a plurality of groups of interfolded sheets which includes a top group and a bottom group and at least one intermediate group, each of the groups of interfolded sheets having a top panel and a bottom panel, and means for securing the bottom panel of each group above the bottom group to the top panel of the next lower group so that the bottom panel pulls the top panel out of the opening but releases the top panel before the sheet which provides the top panel is pulled through the opening. - View Dependent Claims (20, 21)
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22. A package of interfolded sheets comprising:
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a container having a plurality of sidewalls, one of the sidewalls having an opening, a stack of interfolded sheets comprising upper and lower groups of interfolded sheets, the upper group of interfolded sheets having a bottom panel and the lower group of interfolded sheets having a top panel, and means for securing the bottom panel of the upper group to the top panel of the lower group so that the bottom panel pulls the top panel completely out of the opening when the bottom panel is withdrawn from the opening. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification