Package making – Methods – Enclosing contents within progressively formed web means
Reexamination Certificate
2006-02-28
2006-02-28
Gerrity, Stephen F. (Department: 3721)
Package making
Methods
Enclosing contents within progressively formed web means
C053S545000, C053S551000, C493S302000
Reexamination Certificate
active
07003929
ABSTRACT:
A forming apparatus is provided for forming a film into a sleeve around a filling tube. The forming apparatus has contact surface geometry that is contacted by the film as it travels thereacross configured to ensure smooth forming of the film into the sleeve. Smooth forming of the film into the sleeve is achieved, in part, by reducing longitudinal tensile forces in the film, by selecting the contact surface geometry to minimize transverse variations in tensile forces in the film, and by having contact edges of the contact surfaces shaped to reduce unnecessary stresses in the film.
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European Patent Search Report No. 04254351.2-2308 dated Jul. 27, 2005.
Durand Paul
Fitch Even Tabin & Flannery
Gerrity Stephen F.
Kraft Foods Holdings, Inc.
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