Appeal No. 1998-1825
Application No. 08/658,014
Appellants' invention is directed to an apparatus for
producing packaging material which has an adhered teartape
disposed thereon which facilitates the opening of packages
wrapped in the packaging material, such as packs of cigarettes
and confectionery, and the like. The apparatus includes a
means for moving the packaging material and a dispenser for
supplying the teartape. The dispenser supplies the teartape
through a series of rollers 15 and 17 mounted on a first fixed
guide arm 13 and a second compensating guide arm 14, wherein
the teartape is led along a guide path through the rollers to
a location where the teartape is adhered to the packaging
material (i.e., at roller 50). As the teartape is drawn from
the reel 3 by the packaging material 51, the compensating arm
14 moves in accordance with the tension of the teartape. In
the event that the speed of the packaging material 51 moves
slower than the speed of the tape in the guide path, the
decrease in tension on the tape allows the compensating arm to
pivot downwardly about pin 16 under the influence of the
tension spring 19 to extend the length of the tape path, which
increases the tension on the teartape. The compensating arm
2
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