Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – Forming baffle – bottleneck – or handle
Patent
1975-11-10
1978-02-28
Lazarus, Richard B.
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to shape parison directly by internal...
Forming baffle, bottleneck, or handle
425533, 425537, B29D 2303
Patent
active
040764842
ABSTRACT:
An injection-blow molding machine is provided with non-splitting injection and blow molds mounted in stationary relationship on a first platen with the axes of the molds parallel with each other and with a spindle situated equidistant from the molds. Parison pins which cooperate with the two molds are mounted on a second movable platen connected to the end of the spindle and are inserted and withdrawn from the molds as the spindle and the second platen are reciprocated toward and away from the molds. The second platen is also rotatable about the spindle axis to permit the parison pins to be indexed between the injection and blow molds so that parisons can be formed in the injection mold and transferred to the blow mold where a final article such as a container is formed. Neckring segments are mounted on the second platen in cooperative relationship with the parison pins to form the neck portion of a container, and the neckring segments include projecting portions which mate with annular grooves around the mouth of the blow mold to define a shoulder of the blown container between the mouth of the non-splitting mold and the neck of the container.
REFERENCES:
patent: 3408691 (1968-11-01), Ruekberg
patent: 3694124 (1972-09-01), Saumsiegle
patent: 3717430 (1973-02-01), Hansen
patent: 3739052 (1973-06-01), Ayres et al.
patent: 3817678 (1974-06-01), Armour
patent: 3887316 (1975-06-01), Hestehave
Armour Donald F.
Olmsted Bernie A.
Hercules Incorporated
Lazarus Richard B.
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