STACKABLE MINE ROCK SHIELDS
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United States of America Patent
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Issued Date -
Jun 13, 2013
app pub date -
Feb 8, 2013
filing date -
Jan 30, 2009
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Abstract
A stackable mine rock shield is disclosed. The mine rock shield includes a body having a first surface and a second surface, an aperture positioned at about the center of the body for receiving a fastening mechanism, a continuous protuberance extending outwardly from the first surface of the periphery of the body and defining a recess wherein the continuous protuberance intersects the first surface of the body to form an angle of intersection with such first surface, and an edge portion at the perimeter of the body. The mine rock shield may further include a rigid notch at the periphery of the body.
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