Air hammer for a boring machine
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United States of America Patent
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Aug 11, 2015
Grant Date -
Oct 18, 2012
app pub date -
Dec 22, 2009
filing date -
Dec 22, 2009
priority date (Note) -
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Abstract
An air hammer for a boring machine includes a main body, a first bushing member, a second bushing member installed at an end on the opposite side of the main body, a bit unit installed at an end of the second bushing member, a piston hammer, a pneumatic discharge part formed at the top end of the second bushing member, and a pneumatic pressure distribution part formed on the piston hammer.
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