Process for the production of a container or tube fitted with a

Details Process for the production of a container or tube fitted with a Process for the production of a container or tube fitted with a

1989-05-04

1990-06-05

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Flash or sprue removal type

264267, 264274, 264277, 264278, 264318, 264DIG41, B29C 4514, B29C 6578

Patent

active

049312456

ABSTRACT:
The invention concerns a process for the production of a container (46) or tube (45) fitted with a pump (1) for the distribution of a liquid or creamy product, said pump (1) bearing an annular fixing rim (2), the periphery of which is of plastics material at least at its surface wherein: (a) the pump (1) is disposed between tools which sealingly clamp the rim (2) and contain the pump (1) with clearances limiting the rise in temperature thereof in the moulding operation; (b) the body or the skirt (19) is disposed around a tool, the upper end thereof projecting beyond same; (c) the assembly of tools is disposed in such a way as to form an annular moulding space which is fed by way of a plurality of injection ducts and connects said annular rim (2) to the projecting end of said body or skirt (19); and (d) molten plastics material is injected into said annular moulding space by way of said ducts, the assembly is left to cool and the resulting tube (25) is removed from the mould. The invention also concerns the assembly of die tools used and the resulting container or tube (45), the corresponding pump (1) preferably being a pump without air return. Such containers or tubes (45) are used in the fields of cosmetology, pharmacy, hygiene and foodstuff products.

REFERENCES:
patent: 3278086 (1966-10-01), Clouzeau et al.
patent: 3988413 (1976-10-01), Gaudet et al.
patent: 4021524 (1977-05-01), Grimsley

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