RAM device with eccentric drive
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United States of America Patent
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Feb 18, 1992
Grant Date -
N/A
app pub date -
Dec 15, 1989
filing date -
Mar 16, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The yam device has a plurality of guides and a striking mass which is movable so as to be displaceable thereat by means of a hydraulic cylinder, wherein the hydraulic cylinder is arranged with its longitudinal axis outside the path of the center of gravity of the striking mass. The striking mass can comprise a first elastomeric and/or plastic component and a second heavy metal component. Three guides which can be parallel to the movement path of the center of gravity are provided for the guidance of the striking mass, the striking mass is preferably constructed so as to be guided at its respective end areas. The ram device and the striking mass preferably have a symmetry plane defined by the axis of the hydraulic cylinder and the movement path of the center of gravity and the guides located out of the symmetry plane are arranged in two planes which are at an angle of 120.degree. or less relative to each other and symmetrically disposed on each side of the symmetry axis.
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