Method and apparatus for the production of tubes from concrete mix
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United States of America Patent
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Jan 10, 2006
Grant Date -
May 8, 2003
app pub date -
Nov 1, 2002
filing date -
Nov 2, 2001
priority date (Note) -
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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.
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