Patent Number: 6,984,118

Title: Method and apparatus for the production of tubes from concrete mix

Abstract: The invention concerns a procedure for the production of tubes from concrete mix, whereby the concrete mix is filled into a shaping device, for the purpose of shaping, where it is condensed with a tool. The invention should enable an effective and fast production of concrete tubes with high quality regarding the uniformity of the material characteristics. In such a procedure the concrete mix is condensed in an interspace between two parts of a tool that rotate relative to each other.

Inventors: Kuch; Helmut (Weimar, DE), Schwabe; Jorg-Henry (Weimar, DE), Martin; Jurgen (Jena, DE), Benzin; Torsten (Tautenburg, DE)

Assignee: Institut fur Fertigteiltechnik UND

International Classification: B28B 1/20 (20060101)

Expiration Date: 1/10/02018