Plastic article or earthenware shaping or treating: apparatus – Stock pressurizing means operably associated with downstream... – Including auxiliary shaping means associated with molding...
Patent
1993-04-02
1994-02-08
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Stock pressurizing means operably associated with downstream...
Including auxiliary shaping means associated with molding...
425466, 425467, 425532, B29C 4722, B29C 4904
Patent
active
052844340
ABSTRACT:
An extrusion head for a blow molding machine wherein a movable plunger is slidably mounted in a distributor head which receives a melt at an inlet end of its channel and directs it along such channel to the terminal end of the channel while simultaneously directing portions of it along spiral radial paths to the lower circumferential edge of the distributor head to fill an accumulator chamber which also causes the plunger to recede facilitating the filling of the accumulator chamber. The channel as defined by the adjacent circumferential wall and the curvilinear contour on the distributor head defines a smooth integral flow channel that is curvilinear in cross section.
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Europlastics, vol. 47, No. 2/3, Mar. 1974; pp. 67-71.
Balasko Michael M.
Beal Christopher I.
Throne James L.
Chiesa Richard L.
Januszkiewicz Joseph
The Geon Company
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