Device for the controlling of a variable-moment vibrator
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United States of America Patent
Stats
-
May 2, 1995
Grant Date -
N/A
app pub date -
Jun 4, 1993
filing date -
Jun 19, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The device embodying the invention uses a phase shifter controlled by a dual-effect hydraulic acting element comprising a phase shifting chamber connected to the distributor output via a circuit comprising a nonreturn valve and a hydraulic accumulator whose load pressure can be limited by means of a limiter and a rephasing chamber whose pressure is controlled by a pressure regulator so that a predetermined phase shift corresponds with each regulator control value. The invention applies notably to the driving into the ground of objects such as stakes or sheet piles.
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Cited Art Landscape
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