Apparatus for extracting cores
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United States of America Patent
Stats
-
Jul 21, 1981
Grant Date -
N/A
app pub date -
Jan 31, 1980
filing date -
Feb 2, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for extracting cores comprises an outer tube, an inner tube which contains a core receiving space, and a striking device which comprises a hammer and an anvil for producing a periodic axial movement of the inner tube relative to the outer tube, wherein the inner tube, the striking device and an associated supporting body form a unit which may be moved through the outer tube in the axial direction thereof by means of a withdrawal mechanism, and wherein a part of this unit joined to an element of the striking device for rotational entrainment may be connected to the inner tube.
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