Cutting – Other than completely through work thickness or through work... – Scoring
Reexamination Certificate
2006-06-13
2006-06-13
Dexter, Clark F. (Department: 3724)
Cutting
Other than completely through work thickness or through work...
Scoring
C083S049000, C083S054000, C083S881000, C083S882000, C083S946000, C082S001110, C082S047000, C215S252000, C264S154000
Reexamination Certificate
active
07059232
ABSTRACT:
A tamper indicating closure comprising a base wall and a peripheral skirt having an internal thread adapted to engage the threads of a container wherein a tamper indicating band is provided on the skirt by a plurality of circumferentially spaced bridges. The band includes portions adapted to engage an annular bead on the container. The bridges are formed by using a primary knife having an interrupted cutting edge to produce a circumferential score in the side wall of the closure leaving spaced connectors or bridges followed by using a secondary knife having a continuous cutting edge to provide a continuous external score line and an accurately dimensional radial thickness of the bridges. In a preferred method and apparatus, the closures engage the successive primary and secondary knives and are moved such that the closures roll relative to the knives.
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Dexter Clark F.
Owens-Illinois Closure Inc.
LandOfFree
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