Method of making blow molded thermoplastic container having ster

Details Method of making blow molded thermoplastic container having ster Method of making blow molded thermoplastic container having ster

1978-11-24

1981-12-22

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

425503, 425525, B29C 1707, B29D 300

Patent

active

043070590

ABSTRACT:
Disclosed herein is a container of blow molded plastic material which may contain a hermetically sealed biological. Attached to its outer side is an elastomeric diaphragm, adapted for cooperative use with a hypodermic needle as a self-sealing puncture site for injection or aspiration. The diaphragm may be protected by a storage cover which can readily be snapped off when the container is to be used. Also disclosed is a method and an apparatus for making the just described container with diaphragm and storage cover, in the preferred embodiment, as an assembled device, in a blow mold operation in which the container body is blown to fit against and lock to the diaphragm and storage cover.

REFERENCES:
patent: 3140329 (1964-07-01), Nutting
patent: 3275726 (1966-09-01), Rudolph
patent: 3325031 (1967-06-01), Singier
patent: 3479421 (1969-11-01), Armbruster et al.
patent: 3742995 (1973-07-01), Confer et al.
patent: 4207284 (1980-06-01), Speas

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