Pipe ring apparatus
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United States of America Patent
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Feb 16, 2010
Grant Date -
Aug 28, 2008
app pub date -
Apr 29, 2008
filing date -
Oct 22, 2004
priority date (Note) -
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Abstract
An apparatus according to which the apparatus includes a pair of connected arcuate members for clamping around a pipe, with each arcuate member including at least one protrusion. The arcuate members have a first material hardness and at least a portion of the at least one protrusion has a second material hardness that is greater than the first material hardness so that the portion penetratingly engages the pipe when the arcuate members are clamped around the pipe.
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