BOOM APPARATUS AND CONCRETE PUMP VEHICLE HAVING SAME
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United States of America Patent
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app pub date -
Mar 6, 2014
filing date -
Oct 24, 2011
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Abandoned
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Abstract
In one aspect of the invention, a boom apparatus includes at least a first boom, a second boom and a third boom sequentially connected to one another, wherein a root end of the first boom is connected to a turntable, some of the booms is a bent boom occupying at least two column spaces, and when the booms are in a folded state, the boom apparatus occupies at least three column spaces. The invention also provides a concrete pump vehicle having the boom apparatus.
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