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Title:
PROCESS AND DEVICE PLUS WINDER CORE FOR THE PRODUCTION OF PIPE FITTINGS MADE OF FIBRE-REINFORCED PLASTIC
Document Type and Number:
WIPO Patent Application WO1991004843
Kind Code:
A3
Abstract:
In the process of the invention, an inner gel coat is applied round a core (11) made up of several separable parts. The inner gel coat is cured by heating. The core (11) is mounted on the head (39) of a robot (49). A glass-fibre tape (46) impregnated with liquid thermoplastic is wound at a winding station (38) in overlapping turns round the inner gel coat until several layers are formed. The thermoplastic in the glass-fibre layers is cured by heating, and an outer gel coat subsequently applied over the glass-fibre layers and cured. The core (11) is then removed from the fitting. This process enables fittings of consistently high quality to be produced cheaply.

Inventors:
LONA NORBERT (CH)
Application Number:
PCT/CH1990/000235
Publication Date:
November 28, 1991
Filing Date:
October 04, 1990
Export Citation:
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Assignee:
FUTURTECH AG (LI)
International Classes:
B29C53/58; B29C53/76; B29C53/82; B29C; (IPC1-7): B29C53/76
Foreign References:
GB2147561A1985-05-15
US4750960A1988-06-14
DE2012112A11971-09-23
FR1150700A1958-01-16
US3988103A1976-10-26
US2878038A1959-03-17
GB1000375A1965-08-04
CH479019A1969-09-30
FR2133232A51972-11-24
Other References:
Research Disclosure, März 1982, Industrial Opportunities Ltd, (Homewell, Havant, Hampshire, GB), G. Heidemann: "GRP filament wound T-pieces", siehe Seite 60, Zusammenfassung Nr. 21507
Plastverarbeiter, Nr. 8, Band 35, August 1984, (Speyer, DE), H. Cherek: "Fortschritte in der Fertigung von Wickel- und Pressteilen", Seiten 56,59-62,64, siehe Seiten 56,59
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