Apparatus for mixing concrete
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United States of America Patent
Stats
-
Dec 22, 1981
Grant Date -
N/A
app pub date -
Jun 25, 1979
filing date -
Jun 25, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A concrete mixing apparatus comprises a mixing vessel at the bottom of which a plurality of heated steam injectors are arranged, the opening and closing whereof are controlled by valves slaved to actuating means.
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Cited Art Landscape
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