摘要 |
1,160,981. Blow-moulding; liquid dispensers. SYBRON CORP. 5 Aug., 1966 [6 Aug., 1965], No. 35232/66. Heading B5A. In an extrusion/blow-moulding process, containers for liquids having a storage body portion and an integral, simultaneously formed, discharge tube extending to the bottom of the body portion are formed by blowing a tubular parison in a blow mould, Fig. 1, comprising a pair of mould halves, e.g. 21, each having a pair of cavities 30, 86 communicating at one point 90, defining the body and discharge portions, respectively, separated by lands 33 of each mould half which are separated, see Fig. 4, when the mould halves are closed so as to form a common wall therebetween, the mould halves also forming exit means at a different portion of the discharge tube. As in Fig. 1, the container is formed by side lands 31, 31<SP>1</SP>, bottom land 32, wall land 33, neck land 34 and lands 87-89 forming the discharge spout. Blow pin 39 extends through the neck at the bottom of the mould. Lands 31<SP>1</SP> and 33, Fig. 4, are formed on insert 43 which also has a flash-receiving cavity 44. In one embodiment (Figs. 12-15, not shown), a cap closure (17) is formed, integrally connected to the bottle (4a) by web (18) between compression dies (60, 60a) of mould half extensions (59, 59a). Size and position relationships of extruder, blow pin and article are discussed (Figs. 16, 17, not shown).
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