FOLDED SHEET MATERIAL AND METHOD AND APPARATUS THEREFOR

• US 3,679,095 A
• Filed: 06/01/1970
• Issued: 07/25/1972
• Est. Priority Date: 06/01/1970
• Status: Expired due to Term

• Current Assignee: Philip G. Hammond, Walter D. Nissen
• Original Assignee: Philip G. Hammond, Walter D. Nissen
• Inventors: Nissen, Walter D., Hammond, Philip G.
• Primary Examiner(s): Reeves, Robert B.
• Assistant Examiner(s): Bartuska, Francis J.
• Application Number:
  US05/042,348
• Time in Patent Office: 785 Days
• Field of Search: 221/47-55 270/40 206/57
• US Class Current: 221/50
• CPC Class Codes: A47K 2010/428 Details of the folds or interfolds of the sheets
• CPC Class Codes: B65H 45/24 Interfolding sheets, e.g. cigarette or toilet papers

Abstract

Tissue webs which may be of substantially indefinite length and suitable for cutting to a convenient size for packaging are folded and interfolded. The upper or starter web of the stack is folded in quarters and so arranged that this upper web is readily grasped by the fingers of a hand and easily removed from the stack. The next lower web being interfolded with the upper is partially withdrawn from the stack so that it is presented for easy removal also. Several apparatus arrangements and methods for effecting the folding are described.

Claims

1. A sheet material assembly comprising a stack of longitudinally folded sheet material webs including an uppermost starter web and a next lower web, said uppermost web having longitudinal quarter folds all in overlying relation providing a folded web having an opening toward a side edge of the stack, said next lower web having a fold lying in the said opening of the uppermost web so that withdrawal of the uppermost web from the stack also partially withdraws the said next lower web, said uppermost web being closed along a longitudinal zone intermediate side edges of the stack to permit grasping of the folded thickness of the said uppermost web.

2. A sheet material assembly according to claim 1 in which the quarter folds of the central portion of the uppermost web lie in contact, the quarter folds of the opposite edges of the uppermost web lie in contact and the next lower web is interposed between the folds of the said central portion and the folds of the opposite edges.

3. A sheet material assembly according to claim 2 in which the said next lower web has a pair of folds in contact which folds are the portion of the next lower web interposed between the folds of the central portion and the folds of the opposite edges of the uppermost web.