Package making – Progressively seamed cover web or web folds – With package severing and subsequent closing of severed end
Reexamination Certificate
2007-02-13
2007-02-13
Truong, Thanh (Department: 3721)
Package making
Progressively seamed cover web or web folds
With package severing and subsequent closing of severed end
C053S374800, C053S552000, C156S515000, C493S209000
Reexamination Certificate
active
11209379
ABSTRACT:
A combination sealing and cutting device comprising: an elongated anvil having an elongated slot therein; an elongated blade having a longitudinal aperture therein; a heating element in the longitudinal aperture; and an actuator mechanism for driving the blade toward and into the elongated slot to accomplish simultaneous sealing and cutting of overlying polymer films. According to various preferred embodiments, the combination sealing and cutting device further includes a pair of parallel flanges extending along both edges of the blade that serve to retain the blade; and film retaining beads along the longitudinal edges of the parallel flanges that serve to retain the plastic films being cut and sealed against the outer edges of the elongated slot.
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Lomerson, Jr. Roland
Manzi Mark
Pearce Thomas
Wyman Eric
Bakery Holdings LLC
Truong Thanh
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