Sheet-material associating – Associating and folding – Zigzag package
Reexamination Certificate
2011-08-16
2011-08-16
Adams, Gregory W (Department: 3652)
Sheet-material associating
Associating and folding
Zigzag package
C270S039050, C493S357000, C414S789900
Reexamination Certificate
active
07997570
ABSTRACT:
The sheets are supplied interfolded by two folding rollers, on a table on which they are piled up forming a stack. When the stack achieves a predetermined height a first plurality of separators and a second plurality of separators, arranged for all the length of the stack and from opposite sides are inserted into the stack to provide the disengagement of the stack already formed from a stack being formed, leaving between them of a wing of sheet hanging. The stack formed is then withdrawn quickly from the stack being formed by means of a table, which translates vertically, and is subject to a blow of air for stretching a possible last sheet. Then, the stack formed is left on a longitudinal conveyor belt located underneath. At the same time, a sheet stretching board moves under the stack of interfolded sheets, for all its length, for provisional support thereof and for stretching completely the wing hanging from the stack being formed with a portion of wing that exceeds sheet stretching board. Then the separators and withdraw laterally and an element moving from a direction opposite to the sheet stretching board, for example a blow of air, stretches the portion of the exceeding wing of sheet just before that the table comes back.
REFERENCES:
patent: 4721295 (1988-01-01), Hathaway
patent: 4725469 (1988-02-01), Summerfield
patent: 4770402 (1988-09-01), Couturier
patent: 4874158 (1989-10-01), Retzloff
patent: 5088707 (1992-02-01), Stemmler
patent: 5730695 (1998-03-01), Hauschild et al.
patent: 6228014 (2001-05-01), De Matteis et al.
patent: 6322315 (2001-11-01), Schmidt et al.
patent: 2006/0073007 (2006-04-01), De Matteis
patent: 407053122 (1993-08-01), None
patent: 407291527 (1994-04-01), None
Adams Gregory W
Dennison, Schultz & MacDonald
MTC-Macchine Trasformazione Carta S.r.l.
LandOfFree
Method and appartus for separation of stacks of interfolded... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and appartus for separation of stacks of interfolded..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and appartus for separation of stacks of interfolded... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2634806