Hydraulic impactor
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United States of America Patent
Stats
-
Dec 14, 1982
Grant Date -
N/A
app pub date -
Apr 17, 1980
filing date -
Apr 17, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An all-hydraulic impactor for percussion tools and the like embodying an oil accumulator and an annular sleeve valve. Hydraulic fluid is initially supplied to the accumulator at full supply pressure and is then charged, for example, to three times the supply pressure by a differential piston arrangement. The impactor of the invention minimizes the required volume of the accumulator.
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Cited Art Landscape
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