Apparatus and method for molding blocks
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United States of America Patent
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Nov 9, 2004
Grant Date -
Sep 12, 2002
app pub date -
May 15, 2002
filing date -
Jun 21, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus for molding blocks with laterally projecting, undercut side features includes a mold box having split mold parts defining a mold cavity open at the top and bottom. A top plate having an opening aligned with a cavity overlies the mold parts. Moldable block material is charged into the cavity from a feed box, and the material is compacted and shaped between a lower pallet and upper stripper head. The mold parts are retractable beneath the top plate to release the block for stripping through the bottom of a mold. A plurality of fluid outlets in the top plate cleanse the mold surfaces of the block material between mold cycles.
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