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1. (WO1991006419) APPARATUS FOR MAKING PLASTIC TUBING INCLUDING MOLD BLOCKS HINGEABLY OPENABLE AND CLOSEABLE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006419 International Application No.: PCT/CA1990/000372
Publication Date: 16.05.1991 International Filing Date: 29.10.1990
Chapter 2 Demand Filed: 24.05.1991
IPC:
B29C 49/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
49
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
Applicants:
LUPKE, Manfred, A., A. [CA/CA]; CA
Inventors:
LUPKE, Manfred, A., A.; CA
Agent:
PARSONS, Jane; Suite 706 43 Eglinton Avenue East Toronto, Ontario, M4P 1A2, CA
DAHLKE, LIPPERT, STACHOW; Frankenforster Str. 135-137 5060 Bergisch Gladbach 1, DE
Priority Data:
428,63530.10.1989US
Title (EN) APPARATUS FOR MAKING PLASTIC TUBING INCLUDING MOLD BLOCKS HINGEABLY OPENABLE AND CLOSEABLE
(FR) APPAREIL DE PRODUCTION DE TUBES EN PLASTIQUE COMPOSE DE BLOCS DE MOULAGE ARTICULES PAR DES CHARNIERES PERMETTANT LEUR OUVERTURE ET LEUR FERMETURE
Abstract:
(EN) The invention concerns apparatus for molding tube (20) utilizing a travelling mold tunnel. The tunnel is made up of mold blocks (16) each comprising parts (13, 15) which are hinged together to be closeable to form the tunnel and openable to release tube from the tunnel. The opened mold blocks (16) from the downstream end of the tunnel are opened and returned to the upstream end without change in their orientation to reform the tunnel about an extrusion nozzle (18) for thermoplastic extrudate.
(FR) L'invention se rapporte à un appareil de moulage de tubes (20) qui utilise un tunnel de moulage à mouvement d'avance. Le tunnel est composé de blocs de moulage (16) comportant chacun des parties (13, 15) qui sont articulées l'une à l'autre par des charnières permettant leur fermeture en vue de former le tunnel et leur ouverture en vue de libérer le tube du tunnel. Les blocs de moulage (16) arrivés à l'extrémité aval du tunnel sont ouverts et ramenés à l'extrémité amont sans modification de leur orientation, ce qui permet de reformer le tunnel autour d'une buse d'extrusion (18) d'où sort le produit d'extrusion thermoplastique.
Designated States: AU, BB, BG, BR, CA, CH, FI, HU, JP, KP, KR, LK, MC, MG, MW, NO, RO, SD, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
FI921833EP0498819US5372774JPH05501228CA2066754DE000069003109
AU1990066140