Manufacturing container or tube from paper; or other manufacturi – Bending – Form-scoring
Reexamination Certificate
2011-04-05
2011-04-05
Harmon, Christopher (Department: 3721)
Manufacturing container or tube from paper; or other manufacturi
Bending
Form-scoring
C493S396000, C493S397000, C493S400000, C493S401000
Reexamination Certificate
active
07918775
ABSTRACT:
In a method for producing a hinge-like bend line (3a,b,4a,bor5a,b) in a sheet (1) of paper, paperboard, cardboard or foil, particularly a brochure cover, by rotatively driven tools (7.1, 7.2), the bending line (3a,b,4a,bor5a,b) is produced by roll bending without scoring the material in the form of a scoring bead. The roll bending is preferably realized by the cooperation of a tool edge (12a) of a first rotary tool member (8.1) with a conical outside surface (11a) of a second rotary tool member (9.1). The roll bending process lowers the bending resistance of the sheet (1) in the region of the bending point (3a,b,4a,bor5a,b), wherein the sheet (1) is simultaneously pre-bent in a certain direction along the bending point (3a,b,4a,b), e.g., in order to take into account the position of the brochure cover on the book block at the spine edges (the sheet is pre-bent inward in a U-shaped fashion).
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Alix Yale & Ristas, LLP
Harmon Christopher
Kolbus GmbH & Co. KG
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