Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2007-08-07
2007-08-07
Crispino, Richard (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S304300, C156S469000, C156S553000
Reexamination Certificate
active
10808596
ABSTRACT:
A process and apparatus are provided for applying double-layered rigidity strips to a sealable foil web which is transported in sequences. V-shaped loops are formed at predetermined foil sections set at a distance from one another in the web transport direction. The sides of the loops are subsequently sealed together in such a way that the thus formed rigidity strips, extending transversely to the direction of transport, project collar-like from the foil web. Each foil section at which a loop is formed, a controlled auxiliary loop is arranged which serves for adaptation to changes in format regarding the distances between the foil sections. A drum, having a relatively large diameter serves as a transport roller, which drum has devices arranged around its circumference for the purpose of forming a plurality of loops and auxiliary loops.
REFERENCES:
patent: 4522676 (1985-06-01), Masao
patent: 4557713 (1985-12-01), Savich
Packaging Strategies, Japanese Pouches Are ‘Stand Outs’ Among Alternative U.S. Options, p. 4, Nov. 30, 2002.
Crispino Richard
Crowell & Moring LLP
Musser Barbara J.
Ruediger Haaga GmbH
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