Method and device for packing products in films and...

Package making – Methods – Enclosing contents within progressively formed web means

Reexamination Certificate

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Details

C053S453000, C053S477000, C053S553000, C053S559000, C053S329200, C156S073300, C156S073400, C156S580100

Reexamination Certificate

active

10520674

ABSTRACT:
The present invention is directed to a method of wrapping products in films, including the steps of: positioning the products on a first sheet of film which is continuously advanced in one transport direction; covering the products with a second sheet of film, which is continuously advanced in the transport direction and which is aligned plane-parallel to the first sheet of film; ultrasonically welding the first and second films on the outer edges of the products in each case and ultrasonically separating the overlapping films at selected positions; separating the wrapped products or groups of wrapped products.

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