Back to results
US 3,988,100 AGranted
Apparatus for injection blow moulding
AssigneeAlbert Aly Kaufman
InventorPhilippe Julien
Life of this patent
Estimating the term…
Abstract
An injection blow moulding apparatus and method, in which a preform (or "parison") is formed on a blow tube in a preform mould, the preform mould is opened, the blow tube and preform are moved clear of the opened preform mould, a blow mould is closed around the blow tube and preform, and a hollow body is blown in the blow mould and then released, the blow mould parts being continuously around the blow tube and being moved together and apart to close and open the blow mould.
Claims9
An apparatus for injection blow moulding, which apparatus includes:
- an openable and closable preform mould provided at a first position;
- a blow tube and an associated, openable and closable blow mould, the blow tube and associated blow mould being movable together between (a) a first position in which the preform mould is intermediate the blow tube and the open blow mould and (b) a subsequent position where the blow tube and blow mould are clear of the preform mould;
- means for moving the blow tube and associated blow mould from the first position to a subsequent position, and then again to the first position, said moving means including means connected to the blow mould;
- means for closing the preform mould around the blow tube when the blow tube is in the first position, said preform mould closing means including the blow mould, and means, connected to the preform mould, for subsequently opening the preform mould;
- means, in the region of the first position, for injecting molten plastics material into the preform mould when the preform mould is closed in the first position around the blow tube;
- whereby a preform can be formed in the preform mould;
- means for closing the blow mould around the blow tube when the blow mould is in a subsequent position, and for subsequently opening the blow mould, said means for closing and opening the blow mould including means joinable to the blow mould;
- and
- means, coupled to the blow tube, for blowing a fluid medium via the blow tube into the closed blow mould when the blow mould is in a subsequent position, whereby a hollow body can be formed by expansion of the preform.
6 more elements
An apparatus for injection blow moulding, which apparatus includes:
- an openable and closable preform mould provided at a first position;
- a blow tube and an associated, openable and closable blow mould, the blow tube and associated blow mould being movable together between (a) a first position in which the preform mould is intermediate the blow tube and the open blow mould and (b) a subsequent position where the blow tube and blow mould are clear of the preform mould;
- means for moving the blow tube and associated blow mould from the first position to a subsequent position, and then again to the first position, said moving means including means connected to the blow mould;
- means for closing the preform mould around the blow tube when the blow tube is in the first position, and means, connected to the preform mould, for subsequently opening the preform mould;
- means, in the region of the first position, for injecting molten plastics material into the preform mould when the preform mould is closed in the first position around the blow tube;
- whereby a preform can be formed in the preform mould;
- means for closing the blow mould around the blow tube when the blow mould is in a subsequent position, and for subsequently opening the blow mould, said means for closing and opening the blow mould including means joinable to the blow mould;
- and
- means, coupled to the blow tube, for blowing a fluid medium via the blow tube into the closed blow mould when the blow mould is in a subsequent position, whereby a hollow body can be formed by expansion of the preform.
6 more elements
Dependencies are inferred from the claim text.