Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2004-09-09
2010-11-30
Crispino, Richard (Department: 1791)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S227000, C156S252000, C156S443000, C156S513000, C412S007000
Reexamination Certificate
active
07842150
ABSTRACT:
In order to produce an adhesive binding for bookbinding, in which the sheets, in letter paper format, are perforated on the folding edge, folded, provided with adhesive on the folding edge and assembled to form a book block, the perforating process is carried out on the folding edge in such a manner that two interrupted perforation lines are punched, these perforation lines being parallel at a short distance from one another, offset in a longitudinal direction and forming a widened folding edge. The punch locations of both perforation lines are, along the folding edge, offset by the length of one perforating tooth. The sheets, which are folded on the folding edge and which are assembled and squeezed to form a book block, are provided with the application of adhesive on surfaces, which are formed by the double perforating and which are assigned to one another, between full locations of one perforation line and full locations of the other perforation line.
REFERENCES:
patent: 3588085 (1971-06-01), Bailey et al.
patent: 4951867 (1990-08-01), Michalik et al.
patent: 5634758 (1997-06-01), Leu et al.
patent: 5768969 (1998-06-01), Dalfiume
patent: 2003/0170094 (2003-09-01), Yew
patent: 0 841 649 (1998-05-01), None
Crispino Richard
Musser Barbara J.
Welsh Flaxman & Gitler LLC
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