Block mold having moveable liner
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United States of America Patent
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Sep 27, 2016
Grant Date -
Jul 26, 2012
app pub date -
Feb 14, 2012
filing date -
Jun 5, 2009
priority date (Note) -
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Abstract
A method of operating a mold assembly having a plurality of liner plates forming a mold cavity. The method includes driving a master drive element back and forth in a continuous loop about at least a portion of exterior perimeter sides of the mold cavity to provide a first and second linear forces in first and second directions substantially in parallel with each perimeter side of the mold cavity about which the primary drive element is routed, and driving a secondary drive element, which engages the at least one moveable liner plate, with the first and second linear forces to drive at least one moveable liner plate toward and away from the interior of the mold cavity.
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