Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – Including means to prepare parison
Patent
1988-02-10
1989-02-21
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to shape parison directly by internal...
Including means to prepare parison
215 1C, 264537, 425527, 425533, B29C 4906
Patent
active
048060925
ABSTRACT:
In an apparatus for manufacturing a plastic hollow body which hollow body is open on one end and closed on the other, for the forming of a head piece a withdrawal device rests on a ring-shaped nozzle having a ring-shaped nozzle having a ring-shaped nozzle opening, and for the forming of a plastic tubular segment the bottom elements of blow-mold pieces rest on the ring-shaped nozzle, to provide for blow-molding of the tubular segment by blow means.
It is desired to be able to produce a hollow body with a closed head piece and a perforated bottom member. This is achieved in that the withdrawal device is configured for forming a head piece which is closed to the exterior; in that the bottom elements of the blow mold which rest on the ring-shaped nozzle forms a perforation in the bottom member of the body part of the hollow body, which perforation extends over the region surrounded by the ring-shaped nozzle opening; and in that the blow means disposed in the ring-shaped nozzle is associated with or "operative through" the perforation in the bottom member of the body part of the hollow body. Thereby, a hollow body can be manufactured which has a closed head piece and is fillable via the open bottom member.
REFERENCES:
patent: 2936481 (1960-05-01), Wilkalis et al.
patent: 3329996 (1967-07-01), Marcus et al.
patent: 3394209 (1968-07-01), Cheney
patent: 3740180 (1973-06-01), Sidur
patent: 3791098 (1974-02-01), Webster
patent: 4097214 (1978-06-01), Hsu
Linss Gerhard
Ossberger Karl-Friedrich
Chiesa Richard L.
Ossberger Turbinenfabrik GmbH & Co.
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