The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 1994
Filed:
Oct. 23, 1992
Rudolf Fux, Eschenburg, DE;
Alfred Schmeck, Biedenkopf, DE;
Kraemer + Grebe GmbH & Co. KG Maschinenfabrik, Biedenkopf-Wallau, DE;
Abstract
It is often desired to again seal packages, consisting initially of foils hot-sealed with one another, after opening and partial removal of the content in the package in order to at least partially separate the remaining content in the package from the environment. A resealing area is provided for this purpose besides the hot-sealing area, with which the top and the bottom foil are connected to one another, which resealing area consists of individual closing elements which, fitting into each other, are provided in the two foils. The foils are not threadlike connected with one another in the resealing area. Rather dotlike closing elements exist, which also permit a small undercut. They are formed in matrixes without a top die, which matrixes are thereby subjected to an underpressure, whereas the other side of the foil is under an excess pressure. The deformation is thus brought about purely pneumatically. The shape of the closing elements can in this manner be designed in many ways and can be easily adapted to the requirements of each individual package.