Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Allan Joseph Hilling Smith0
David Sean O'Brien0
Michael Carl Junger0
Date of Patent
November 25, 2008
0Patent Application Number
110078490
Date Filed
December 9, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A mould assembly (60) and a method of use in injection moulding of a part having a functional cavity therein. The mould assembly has a recess (72) to receive a hollow tubular insert (48) intended to be placed in the mould assembly before the injection of a mouldable material into the cavity and to remain in the part after moulding. A gas supply arrangement supplies pressurised gas to the hollow tubular insert at a selected stage during the injection process whereby to form the functional cavity in the part.
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