Patent ID: 9681674
Date: 2017-06-20
CPC Classifications: A22C,A23V,B29C,B29K,B29L,Y10T

Claim:
1. Method for the production of a sheath having a greater length, for foods, from a plurality of individual sheath sections composed of casings that contain collagens, comprising the steps of pushing sheath sections onto a mandrel, one after the other, wherein two end regions of consecutive sheath sections that face one another overlap on the mandrel and form an overlapping region of sheath sections, simultaneously applying heat and pressure temporarily to the overlapping region of the two sheath sections, so that the sheath sections are welded to one another, at least in part, in the overlapping region, wherein the overlapping region of the two sheath sections is positioned above a deformable expansion body, wherein the expansion body is enlarged, before or during the welding process of the overlapping region, from its starting diameter to its end diameter, which corresponds to the maximal casing caliber, and thereby enlarging the overlapping region also in its diameter, and after the welding process, moving the expansion body back to its starting diameter, wherein before heat and pressure are applied, water is pressed out of the overlapping sheath sections of the casing.