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:
May. 12, 1987
Filed:
Sep. 05, 1985
Ingemar Ohlsson, Malmo, SE;
Tetra Pak Developpement S.A., , CH;
Abstract
The specification describes an apparatus for forming, welding and conveying packs, particularly liquid filled plastic bags, where the forming shells (17) are each made up of two half shells provided on two parallel, opposing endless conveyors (1,3) with a circling motion, wherein heatable welding jaws (2) are located between successive half shells on one endless conveyor (1) and counter pressure jaws (4) are provided on the opposite endless conveyor (3). To enable forming shells of a specific volume to be produced between opposing endless conveyors without any great outlay on construction and with safe operation, the invention provides for each half shell to be formed by a trough plate (6) which is supported displaceably and deformably between two adjacent welding jaws (2,4).