Concrete pressure monitoring device for monolithic concrete structure forming apparatus
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United States of America Patent
Stats
-
Apr 13, 1982
Grant Date -
N/A
app pub date -
May 3, 1979
filing date -
May 3, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A concrete pressure monitoring device in an apparatus for continuously forming an elongated monolithic concrete structure within a prepared excavation. The device includes a pressure sensitive membrane exposed to wet concrete between a bottom surface of the excavation and an inner form member of the apparatus. The membrane covers an open end of a fluid filled housing so that variations in concrete pressure adjacent the membrane will flex the membrane to cause displacement of fluid within the housing. A remote indicator responsive to displacement of fluid within the housing is operatively connected to the housing to indicate the concrete pressure variations.
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Cited Art Landscape
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