Machine for the production of flexible material sheets

Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – And with bending

Reexamination Certificate

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Details

C493S353000, C493S360000, C493S434000, C493S442000, C493S475000, C493S478000

Reexamination Certificate

active

07037251

ABSTRACT:
Machine for the production of flexible material sheets comprising at least one folding unit housing at least one cutting cylinder, to which a suction cylinder is opposed, and a gripping cylinder for transversal folding and/or conveying flat products by suction. A second suction cylinder for a second transversal fold and/or for conveying flat products and a second conveyor cylinder for conveying folded products or flat unfolded products may be associated downstream to said machine.

REFERENCES:
patent: 2047710 (1936-07-01), Schwartz
patent: 3689061 (1972-09-01), Nystrand
patent: 3870292 (1975-03-01), Bradley
patent: 4475730 (1984-10-01), Trogan
patent: 4861326 (1989-08-01), Kuhner et al.
patent: 5165671 (1992-11-01), Motooka
patent: 5558615 (1996-09-01), Albert
patent: 5676630 (1997-10-01), Mayr
patent: 5904277 (1999-05-01), Niedermeyer
patent: 5910090 (1999-06-01), Taute
patent: 6024685 (2000-02-01), Kirsch
patent: 6761678 (2004-07-01), Miescher et al.
patent: 44 07 375 (1995-09-01), None
patent: 0 302 031 (1989-02-01), None

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