Traveling extrusion machine
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United States of America Patent
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-
Apr 20, 2004
Grant Date -
Jun 27, 2002
app pub date -
Oct 22, 2001
filing date -
Jan 14, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A spiral conveyor for a concrete extrusion machine has a first spiral conveyor section with a first external diameter. There is a second spiral conveyor section having a second external diameter which is greater than the first diameter. The second section is spaced apart from the second section. A third spiral conveyor section is between the first section and the second section. The first end of the third section is connected to the first section and the second end is adjacent to the second section. The second spiral conveyor section may be mounted on a hollow shaft of the third section. The second section has two longitudinally divided components, each having a recess therein. Connectors interconnect the two components and a locking device is between the hollow shaft and the second section.
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