Manufacturing container or tube from paper; or other manufacturi – Bending – Corrugating
Reexamination Certificate
2008-07-15
2008-07-15
Tawfik, Sameh H. (Department: 3721)
Manufacturing container or tube from paper; or other manufacturi
Bending
Corrugating
C493S123000, C493S315000, C493S101000
Reexamination Certificate
active
07399267
ABSTRACT:
An apparatus and method for the vacuum assisted bonding of sections of corrugated cardboard and for manufacturing corrugated cardboard. A pressure plate has a bore for applying a vacuum therethrough. A first section of corrugated cardboard has an orifice which is aligned with the bore in the pressure plate. Adhesive is applied between the first section of corrugated cardboard and a second section of corrugated cardboard and the second section is placed adjacent to the first section away from the pressure plate. A vacuum is applied through the bore in the pressure plate and orifice in the first sections to cause the first and second sections to be drawn and adhered together. In the manufacture of corrugated cardboard, vacuum and optionally hot air are applied to opposite edges of the sandwiched core of fluted linerboard with adhesive and overlaying flat linerboard to draw them together to form the corrugated cardboard.
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Christie Parker & Hale, LLP.
Tawfik Sameh H.
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