Vibratory concrete screed
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United States of America Patent
Stats
-
Mar 25, 1986
Issued Date -
N/A
app pub date -
May 29, 1984
filing date -
Dec 31, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for screeding and finishing concrete pavements having an elongate sectional framework, turnbuckles between framework sections to provide a crown or sag, a rotating shaft with eccentric weights driven by an internal combustion engine to impart vibration, hydraulic pumps and motors driving winches for self-propulsion of the device across the concrete. The screed bars are hollow rectangular members having two useable wearing surfaces. The screed bars may be rotated to bring their second wearing surfaces into contact with the concrete.
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Cited Art Landscape
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