Package making – Methods – Closing package or filled receptacle
Reexamination Certificate
2005-01-04
2005-01-04
Smith, Scott A. (Department: 3721)
Package making
Methods
Closing package or filled receptacle
C053S477000, C053S376300, C053S376800, C493S162000, C493S164000, C493S166000, C074S09900A, C074S107000
Reexamination Certificate
active
06837029
ABSTRACT:
A carton closure method wherein heated end side walls of the open end of a carton are initially infolded to partially close the open end of the carton and thereafter subjected to capture between a backup pad and a pressure pad by a linearly reciprocative cam to which pressure is applied by a cam follower driven in a direction substantially perpendicular to the direction of linear movement of the cam relative to the backup pad, whereby the cam is moved between positions wherein there is applied pressure against the partially infolded portions of the end side walls of a carton blank to effect a sealing pressure against such infolded portions and a position wherein no material pressure is applied to the partially infolded end side walls of the carton blank, the cam movement being facilitated by a multi-faceted geometry of the camming face of the cam.
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Kreher Cletus E.
Morden George A.
Smith Scott A.
Truong Thanh
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