Plastic article or earthenware shaping or treating: apparatus – Female mold including tamping means or means utilizing mold... – Means to vibrate shaping surface
Patent
1998-01-15
1999-12-28
Mackey, James P.
Plastic article or earthenware shaping or treating: apparatus
Female mold including tamping means or means utilizing mold...
Means to vibrate shaping surface
249119, 249139, 425253, 425470, B28B 724
Patent
active
060073217
ABSTRACT:
A unitary concrete product mold formed from a central member having an array of product-shaping molds bounded by side and end portions. Support rails mounted on the bottom surface of the central member limit deflection of the central portion of the central member, improving product quality and reducing mold wear.
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Hoskins Alan L.
Johnston Llewellyn L.
Litterell Kevin T.
Meckel Kevin
Rowland Ronald J.
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