Moulding process
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United States of America Patent
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Apr 20, 2004
Grant Date -
Jan 31, 2002
app pub date -
Jun 7, 2001
filing date -
Jun 10, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method of moulding articles from layers of composite material being fibres impregnated with uncured resin, includes draping at least one layer of the composite material over a moulding tool, applying over the composite material layer or layers a membrane, and establishing an at least partial vacuum between the membrane and the moulding tool to consolidate the composite material, and wherein the membrane is made of a resilient material, and the method includes applying a force to the membrane to stretch the membrane over the moulding tool and maintaining the force whilst the at least partial vacuum is established.
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