ECCENTRIC CONES FOR ROCK CUTTING
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United States of America Patent
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app pub date -
May 18, 2016
filing date -
May 18, 2015
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Abstract
A backreaming assembly having an elongate rotatable tool shaft and a plurality of cutting elements. The tool shaft is disposed on a tool axis and has a first end and a second end. Each cutting element is supported on the shaft in side-to-side relationship. Each cutting element is rotatable with respect to the shaft and with respect to each other. Each cutting element has a center offset from the tool axis.
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