Plastic closure for a plastic container

Dispensing – With lock or fastening seal – Plural

Patent

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Details

222529, 215256, B67B 500

Patent

active

050041266

ABSTRACT:
The specification describes a plastic closure adapted to be screwed onto the neck (1) of a plastic container, with a screw-on ring (5) and with an insert portion (11) comprising a flexible bellows (14) and a pour spout (15), with a frame cap (21) adapted to be screwed on to an external thread (19) on the spout. In order to maintain good pouring properties, e.g. by means of the flexible bellows, and to make automatic production simpler and cheaper, the invention proposes that the frame cap (21) is integral with the screw-on ring (5), and the top wall (23) of the cap (21) is moulded on so that it projects a distance (d) from the top wall (8) of the ring (5).

REFERENCES:
patent: 3489319 (1970-01-01), Marcel
patent: 3817416 (1974-06-01), Costa
patent: 4261478 (1981-04-01), Summers
patent: 4320843 (1982-03-01), Dubach
patent: 4422563 (1983-12-01), Babiol
patent: 4478242 (1984-10-01), Bond
patent: 4569464 (1986-02-01), Wassilieff
patent: 4760941 (1988-08-01), Salmon et al.
patent: 4773560 (1988-09-01), Kittscher
patent: 4796769 (1989-01-01), Obadia

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