Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent
1984-11-07
1987-03-17
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
264167, 2642098, B29C 4720
Patent
active
046506292
ABSTRACT:
A die ring for use in a blow molding process is provided with depressions at the downstream end of the land to provide the parison with a longitudinally thickened rib and depressions at the upstream end of the land to counteract parison deformation caused by the downstream depressions.
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"Blow Molding Marlex.RTM.," vol. 4, No. 3, The Shaped Extrusion Die, May-Jun. 1963.
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Phillips Chemical Company, Plastic Technical Center Report, SSL-178, "Die Shaping Calculation Procedures", May 1969.
Morgan Bill T.
Mozer Larry P.
Casperson John R.
Phillips Petroleum Company
Thurlow Jeffery
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