Device for the production of plastic containers by means of stretch blow moulding and device for coating the inner walls of a plastic container

US7481636B2 · kind B2 · utility

Assignee

• Tetra Laval Holdings & Finance S.A. · CH

Inventors

• Damerow Volker · Uelversheim, DE
• Heinrich Gruenwald · Florstadt, DE
• Jens Fuchs · Uelversheim, DE
• Hanno Käβ · Darmstadt, DE
• Lothar Wilhelm · Karben, DE
• Hans Kindinger · Bensheim, DE
• Eberhard Sendobry · Rimbach, DE
• Rudiger Wlach · Büttelborn, DE

Key dates

• Filing date: Mar 17, 2003
• Grant date: Jan 27, 2009
• Expiry date: Apr 24, 2024

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/712
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Apparatus for producing plastic containers by stretch blowing including a rotatable rotor and at least one distributor block connected to the rotor. The distributor block has a mixing chamber that can be directly connected to an internal space of a preform so that a combustion chamber is formed from the mixing chamber and the internal space of the preform. A feed device is provided for feeding an explosive fluid into the combustion chamber and a firing device is provided for firing the explosive fluid in the combustion chamber. Of importance is that the distributor block can be connected directly to a preform or to a formed container. The apparatus is desirably a round rotor machine with a rotatable carousel for receiving a plurality of distributor blocks having a mixing chamber that can be directly connected to an internal space of a preform. The distributor blocks are desirably arranged in such a way that they can be rotated together with the carousel. The invention also includes an apparatus, in particular a round rotor machine, for coating the inside walls of a plastic container with a barrier layer which is impermeable in relation to gases, aroma substances and the like, in wh…