Apparatus for the production of concrete paving stones
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United States of America Patent
Stats
-
Jan 28, 1997
Grant Date -
N/A
app pub date -
Jan 26, 1995
filing date -
Jan 27, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for the production of concrete paving stones, including an open top mold having a number of die cavities each with adjoining recesses, wherein the free volume of the recesses is reduced by local cross-sectional constrictions at the upper filling-in region of the recesses. Also included is a pressure ram for cooperation with each die cavity, the pressure ram having lateral projections each with a contour corresponding to the cross-section of the recesses at the constriction for entering into the recesses.
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Family
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Cited Art Landscape
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