Rotary pipe and fixed channel auger with intermediate outer supporting elements
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 29, 1993
Grant Date -
N/A
app pub date -
Jul 16, 1992
filing date -
Jul 23, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary pipe and fixed channel auger with intermediate outer supporting elements includes alternated portions of a rotary spiral, within the fixed outer channel and, respectively, of a fixed spiral clamped within an outer pipe which turns rigidly therewith, the portions of rotary pipe having preferably a like length and bearing on outer supporting elements which substantially includes pairs of centering rollers connected by shafts which are parallel to the axis of the spiral.
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Cited Art Landscape
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