Boom arrangement for rock drilling apparatus
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United States of America Patent
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-
Oct 8, 2002
Grant Date -
N/A
app pub date -
Feb 20, 2001
filing date -
May 26, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A boom arrangement for a rock drilling apparatus includes at least one boom and an actuator, e.g., a passenger cage, arranged at a free end of the boom. The boom also includes at least two boom parts articulated pivotably with respect to each other. The first boom part is articulated by a first articulation pivotable substantially in a horizontal direction. The second boom part in turn is arranged at an end of the first boom part, and the second boom part can be turned both vertically and horizontally with respect to the first boom part.
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