Package making – Methods – Enclosing contents within progressively formed web means
Reexamination Certificate
2006-02-21
2006-02-21
Gerrity, Stephen F. (Department: 3721)
Package making
Methods
Enclosing contents within progressively formed web means
C053S052000, C053S375900, C493S008000
Reexamination Certificate
active
07000366
ABSTRACT:
A decoration correction method for a form-and-seal unit for producing sealed packages of a pourable food product from a tube of packaging material fed along a feed path, and having two pairs of jaws movable along the feed path and opened and closed so as to travel, cyclically and alternately with each other, along a form-and-seal portion along which the pairs of jaws are closed and travel integrally with the tube, and along a repositioning portion along which the pairs of jaws open and move with respect to the tube. To make a decoration correction, a nominal trajectory of the jaws is modified along the repositioning portion on the basis of a position error of the tube with respect to a nominal position. A first solution provides for correcting the travel of the jaws by selectively modifying the amplitude of the trajectory; and a second solution provides for correcting the phase of the jaw trajectory.
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Borghi Davide
Faskhoody Behrooz
Hellberg Bo
Buchanan Ingersoll P.C.
Durand Paul
Gerrity Stephen F.
Tetra Laval Holdings & Finance S.A.
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