| 摘要 |
1,183,408. Moulding containers. PHILLIPS PETROLEUM CO. 2 June, 1967 [3 June, 1966], No. 25636/67. Heading B5A. [Also in Division B8] Thin-walled plastics containers 1 having curved side walls 2<SP>1</SP> as shown, are blow-moulded in a unit having a combination screw-ram extruder with a manifold and platen assembly comprising four die heads and corresponding moulds, whereby four parisons are formed simultaneously. The containers which may be of polyethylene or polypropylene are designed to the shape assumed by similar but planarwalled containers which bulge when filled, e.g. with milk. |
