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:
Oct. 22, 1985
Filed:
Oct. 26, 1983
Engelbert Sander, Vouvry, CH;
Automation Industrielle, S.A., Vouvry, CH;
Abstract
There is provided a packing tube having a gas tight head region. The tube consists of a tube body formed of a multilayered connecting foil having a metallic barrier layer. A prefabricated conical headpiece is provided consisting of synthetic material having a discharge opening and a connecting element disposed thereon. The connecting element consists of a connecting foil including a metallic layer and at least one layer of synthetic material. The peripheral rim of the tubular body overlaps the outer rim of the connecting element either thereabove or therebelow, and wherein the superimposed layers of synthetic material are softened by inductive generation of heat in the metal layers, and welded to one another under pressure. The headpiece consists of two overlapping portions, the lower portion completely covering the underside of the upper portion, the lower portion consisting of a non-permeable material. The outer diameter of the headpiece is smaller than the inner diameter of the tubular body. The outer rim edge formed by the superimposed upper and lower portions of the headpiece is undercut, and forms a portion of the surface of a cone, whose apex lies on the central axis of the tube, and directed oppositely to the discharge opening of the headpiece. For locking the headpiece portions, synthetic material of the connecting foil is overlappingly formed on the undercut outer rim edge of the headpiece overlapping at least the connecting line of the upper and lower parts.