Patent ID: 8225583
Filing Date: 2012-07-24
Classification: B29C,B29L,B65B

Abstract:
1. A closing apparatus for closing bag-type packaging units by compression, which units have regions of differing thickness along a package opening to be closed, the package being made of coated or uncoated paper, paperboard, plastic, film, and/or woven material, which packaging units have at least one suitable sealing surface that is integrated in or applied to the material for permanent bonding to a surface that is adjacent to or opposite and pressed against the material, the closing apparatus comprising: a pressing device; at least one pressure device; at least one counter-pressure device between which the packaging units are compressed, with the application of heat, in the region of their sealing surface(s), wherein the pressure device and the counter-pressure device are designed as pressure rollers that are elastically tensioned against one another and heated, which have, along the package opening to be closed, zones of different pressure that depend on a thickness of a material layer.