Package making – With contents treating – Reshaping
Patent
1975-04-28
1977-10-18
Lazarus, Richard B.
Package making
With contents treating
Reshaping
425524, 425522, B29D 2303
Patent
active
040540170
ABSTRACT:
An apparatus for producing a bottle-shaped container, filled, sealed and dy for shipment, which comprises the steps of inserting a section of a thermoplastic synthetic tube into a divided blow mold with individually adjustable crown mold halves. The bottom part of the tube is then closed. Blow-molding, filling and sealing steps of the tube are performed in the mold in its still locked state to form the container. The crown mold halves are thereafter closed airtight at the head end by joining together after insertion of a tube section to be widened into the blow mold by applying a pressure medium. At least a section of the wall of the container is subjected by engagement to an outer pressure and pressed in the wall into the inner space of the container. By the excess pressure developed thereby in the inner space of the container, the wall of the head of the container is pressed against the wall of the mold of crown mold halves.
REFERENCES:
patent: 3325860 (1967-06-01), Hansen
patent: 3597516 (1971-08-01), Harwood
patent: 3690803 (1972-09-01), Pechtold et al.
patent: 3717430 (1973-02-01), Hansen
Lazarus Richard B.
PMD Entwicklungswerk fur Kunststoff-maschinen GmbH & Co. KG.
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