Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – With heating or cooling means
Patent
1979-01-24
1980-11-18
Silbaugh, Jan H.
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to shape parison directly by internal...
With heating or cooling means
264537, 425533, 425534, B29C 1707
Patent
active
042343020
ABSTRACT:
Apparatus for the preparation of hollow plastic articles wherein a more rapid operating cycle is obtained with less effect upon the temperature of the parison. The apparatus includes a first core, means for providing a parison thereon, a temperature controlled first mold engageable with said first core and parison, means for separating the first core from the first mold and parison contained therein, a second core in spaced relationship to the first core, means for transferring the parison to the second core, a blow mold in spaced relationship to said first mold for fully expanding the parison and means for transferring the second core and parison to the blow mold, wherein the blow mold is stationary and the second core with parison thereon is brought into alignment with the blow mold and is inserted therein.
REFERENCES:
patent: 3759686 (1973-09-01), Trahan
patent: 3776991 (1973-12-01), Marcus
patent: 3819314 (1974-06-01), Marcus
patent: 3944643 (1976-03-01), Sato et al.
patent: 3966378 (1976-06-01), Valyi
patent: 4106886 (1978-08-01), Sokolow
patent: 4140464 (1979-02-01), Spurr et al.
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