Underground reamer
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United States of America Patent
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Jul 12, 2016
Grant Date -
Sep 26, 2013
app pub date -
Sep 15, 2011
filing date -
Sep 20, 2010
priority date (Note) -
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Abstract
A reamer for underground passageways made, for instance, for the installation of cables or pipelines to distribute services in a reticulated network. It includes a support housing having plural integral pairs of spaced-apart laterally extending support wings, wherein between each pair of support wing there is a longitudinally extending slot to receive a laterally extending cutting wing such that each cutting wing is captured between a respective pair of support wings. A stabilization ring comprising a circular sleeve supported by plural radial support pillars which extend from a central collar. Wherein, the cutting wings engage with the support housing to resist rearward longitudinal movement, with the support wings to resist torsional forces, and with the circular sleeve of the stabilization ring to resist radial movement.
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