EXPANSION BUSHING DOWEL
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United States of America Patent
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Issued Date -
Jun 5, 2014
app pub date -
May 7, 2012
filing date -
Mar 7, 2011
priority date (Note) -
Abandoned
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Abstract
The dowel comprises:
- i) a stem with, at one end, fastening means and, at the other end, an expansion cone; andii) an expansion bushing mounted around a portion of the stem adjacent to the expansion cone and through which the expansion cone is intended to be moved so as to anchor the dowel into an anchoring hole of a supporting material. According to the invention, the expansion bushing is free of slits and drilled with expansion holes along an opening area of the bushing.
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