Heat exchanger
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 15, 1989
Grant Date -
N/A
app pub date -
Oct 30, 1987
filing date -
Oct 30, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A conveying screw having a tubular helical flight attached only at its opposite end portions to a hollow conveying screw body. Heat exchange medium introduced into the hollow body is transferred along the tubular helical flight.
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