Package making – Methods – Forming a cover adjunct or application of a cover adjunct to...
Reexamination Certificate
1999-02-19
2001-01-16
Gerrity, Stephen F. (Department: 3721)
Package making
Methods
Forming a cover adjunct or application of a cover adjunct to...
C053S450000, C493S239000, C493S923000
Reexamination Certificate
active
06173554
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a pouch, coated with a film-forming mass, made of flexible packaging material and featuring a zone for tearing the pouch open.
Filling pouches such as tube-shaped pouches with foodstuffs and closing off the pouch by sealing is known. The contents may be removed for example by tearing the pouch open. Depending on the type of packaging material used, it may be difficult to tear open the pouch. Especially pouches made from flexible packaging materials employing highly elastic or tough plastics are difficult to tear open to remove the contents. For that reason an aid to tearing the plastic is often stamped onto a sealed seam on the package. This enables the pouch to be opened; often, however, the contents of the pouch cannot be removed without spillage e.g., or the pouch must be torn beyond the region offering assistance to tearing it open; very often this is problematic for the user. It has also already been proposed for example to provide the pouches with a tear-open strip. This tear-open strip may extend right round the pouch so that the packaging material separates leaving the pouch open. This is, however, a very complicated process as the tear-open strip has to be incorporated in the packaging laminate material.
The object of the present invention is to provide a pouch which contains an aid to tearing it open which may be placed at any desired place, advantageously at an edge region, and enables the pouch to be opened easily and makes the contents of the pouch accessible in such a manner that the contents may be removed without requiring any additional further manipulation to open the pouch.
SUMMARY OF THE INVENTION
That objective is achieved by way of the invention in that the zone for tearing the pouch open is a weakness in the packaging material and the region exhibiting the weakness is covered over with at least one film-forming mass and, after the packaging step, the contents of the pouch are protected by the pouch and, to remove the contents from the pouch, a pulling or snapping movement breaks the cover layer of film-forming mass, whereupon the contents of the pouch become accessible.
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Alusuisse Technology & Management Ltd.
Bachman & LaPointe P.C.
Gerrity Stephen F.
Tawfik Sam
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