Apparatus and method for forming a discontinuity in an interfolded stack
First Claim
1. An interfolding apparatus comprising. a first interfolding roll to which sheets of web product are supplied;
- and a second interfolding roll to which additional sheets of web product are supplied, the interfolding rolls being rotatable to form a first number of folds in the sheets of web product, and the interfolding rolls being rotatable to form the first number of folds in some of the additional sheets and a second number of folds in at least one other of the additional sheets, the second number of folds being different than the first number of folds, wherein the interfolding rolls are rotatable to interfold the sheets with the additional sheets having the first number of folds to form a stack of interfolded web product, and wherein the interfolding rolls are rotatable to interfold at least one of the sheets with at least one of the additional sheets having the second number of folds to form a discontinuity in the stack.
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Accused Products
Abstract
An interfolding apparatus including first and second interfolding rolls. The first interfolding roll is supplied sheets of web product and the second interfolding roll is supplied additional sheets of web product. The interfolding rolls rotate to form a first number of folds in the sheets and rotate to form the first number of folds in some of the additional sheets and a second, different number of folds in at least one other of the additional sheets. The interfolding rolls rotate to interfold the sheets with the additional sheets having the first number of folds to form a stack of interfolded web product and rotate to interfold at least one of the sheets with at least one of the additional sheets having the second number of folds to form a discontinuity in the stack.
22 Citations
32 Claims
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1. An interfolding apparatus comprising.
a first interfolding roll to which sheets of web product are supplied; - and
a second interfolding roll to which additional sheets of web product are supplied, the interfolding rolls being rotatable to form a first number of folds in the sheets of web product, and the interfolding rolls being rotatable to form the first number of folds in some of the additional sheets and a second number of folds in at least one other of the additional sheets, the second number of folds being different than the first number of folds, wherein the interfolding rolls are rotatable to interfold the sheets with the additional sheets having the first number of folds to form a stack of interfolded web product, and wherein the interfolding rolls are rotatable to interfold at least one of the sheets with at least one of the additional sheets having the second number of folds to form a discontinuity in the stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An interfolding apparatus comprising.
a first interfolding roll to which sheets of web product are supplied, the sheets having a first length; - and
a second interfolding roll to which additional sheets of web product are supplied, the second interfolding roll being adjacent to the first interfolding roll, some of the additional sheets having the first length and at least one other of the additional sheets having a second length, the second length being different than the first length, wherein the interfolding rolls are rotatable to interfold the sheets with the additional sheets having the first length to form a stack of interfolded web product, and wherein the interfolding rolls are rotatable to interfold the sheets with at least one of the additional sheets having the second length to form a discontinuity in the stack. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of interfolding sheets of web product, the method comprising:
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providing an interfolding apparatus including a first interfolding roll and a second interfolding roll adjacent to the first interfolding roll;
supplying sheets of web product having a first length to the first interfolding roll;
supplying some additional sheets of web product having the first length to the second interfolding roll;
supplying at least one other of the additional sheets of web product having a second length to the second interfolding roll, the second length being different than the first length;
interfolding the sheets with the additional sheets having the first length;
forming a stack of interfolded web product;
interfolding the sheets with at least one of the additional sheets having the second length; and
forming a discontinuity in the stack. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A method of interfolding sheets of web product, the method comprising:
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providing an interfolding apparatus including a first interfolding roll and a second interfolding roll adjacent to the first interfolding roll;
supplying sheets of web product to the first interfolding rolls;
supplying additional sheets of web product to the second interfolding roll;
forming a first number of folds in the sheets;
forming the first number of folds in some of the additional sheets;
forming a second number of folds in at least one other of the additional sheets, the second number of folds being different than the first number of folds;
interfolding the sheets with the additional sheets having the first number of folds;
forming a stack of interfolded web product;
interfolding at least one of the sheets with at least one of the additional sheets having the second number of folds; and
forming a discontinuity in the stack. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification