Structure of interfolding machine

Details Structure of interfolding machine Structure of interfolding machine

2007-02-15

2008-10-28

Desai, Hemant M (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

C493S379000, C493S430000, C493S433000, C493S448000, C270S039010, C270S039020, C270S039050, C270S039060

Reexamination Certificate

active

07442157

ABSTRACT:
An interfolding machine for sheet material for making a stack of interfolded sheets includes at least one web of material to interfold that is cut into sheets of predetermined length and rolls for partially overlapping the sheets in order to form an overlapped portion between two consecutive sheets. Interfolding rolls are also provided, adapted to produce the stack, as well as a conveyor adapted to convey the partially overlapped sheets in a zone set between the roll and the interfolding rolls. Further, the overlapping portion of the sheets is maintained constant through a plurality of belts and guides facing the belts so that between the belts and the respective guides a channel is formed for conveying the partially overlapped sheets.

REFERENCES:
patent: 2420525 (1947-05-01), Deloye
patent: 3163413 (1964-12-01), Franke et al.
patent: 3229974 (1966-01-01), Banks
patent: 4725469 (1988-02-01), Summerfield
patent: 4824426 (1989-04-01), DuFresne
patent: 4874158 (1989-10-01), Retzloff
patent: 6165116 (2000-12-01), White
patent: 7306554 (2007-12-01), Couturier et al.
patent: 7329221 (2008-02-01), Haasl et al.
patent: 628053 (1949-08-01), None

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