Title:
PRODUCTION OF HOLLOW ARTICLES
Document Type and Number:
WIPO Patent Application WO1999047338
Kind Code:
A9
Abstract:
The moulding tool comprises a plurality of components which are connected to one another and form a flexible string. The tool incorporates actuating means which pulls the components into an abutting relationship in which the tool has the form of a rigid string. The actuating means can comprise electromagnets. When power is supplied the electromagnets pull the components together. Alternatively a passageway through the tool, constituted by a passage in each component, can be connected to a source of suction. As the passageway is evacuated, the components are drawn together. The tool is used in a preform mould. Once the preform has been moulded, it and the tool embedded in the preform, are removed to a blow mould and the preform blown. The tool is then returned to its flexible string form. It can then be withdrawn from the bottle through its neck.
Inventors:
HUMAN JAN PETRUS (ZA)
Application Number:
PCT/AP1999/000004
Publication Date:
August 22, 2002
Filing Date:
February 26, 1999
Export Citation:
Assignee:
LOMOLD PTY LTD (ZA)
LOMOLD INTERNAT LTD (GB)
HUMAN JAN PETRUS (ZA)
ROSETTENSTEIN JENNIFER JANE (ZW)
LOMOLD INTERNAT LTD (GB)
HUMAN JAN PETRUS (ZA)
ROSETTENSTEIN JENNIFER JANE (ZW)
International Classes:
B29C49/42; B29C33/00; B29C33/30; B29C33/76; B29C45/26; B29C49/00; B29C49/06; B29C; (IPC1-7): B29C49/48; B29C33/00; B29C49/00
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