Liquid or hydraulic blow molding
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United States of America Patent
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Sep 13, 2011
Grant Date -
Sep 3, 2009
app pub date -
Dec 4, 2008
filing date -
Dec 6, 2007
priority date (Note) -
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Abstract
An apparatus and method for simultaneously forming and filling a plastic container is provided. A mold cavity defines an internal surface and is adapted to accept a preform. A pressure source includes an inlet and a piston-like device. The piston-like device is moveable in a first direction wherein liquid is drawn into the pressure source through the inlet and in a second direction wherein the liquid is urged toward the preform. A blow nozzle may be adapted to receive the liquid from the pressure source and transfer the liquid at high pressure into the preform thereby urging the preform to expand toward the internal surface of the mold cavity and creating a resultant container. The liquid remains within the container as an end product.
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