Method of opening medical liquid container with separable outer

Details Method of opening medical liquid container with separable outer Method of opening medical liquid container with separable outer

1975-09-15

1977-04-05

McGehee, Travis S.

Package making

Interrelated or safety controls

53381A, B65B 4340

Patent

active

040154009

ABSTRACT:
A thermoplastic bottle for sterile medical liquids with a dispensing outlet closed off by an inner closure. An outer closure in the form of a thermoplastic cap overlies the inner closure. During steam sterilization at 240.degree. to 260.degree. F (116.degree. to 127.degree. C) the outer cap deflects inwardly against the inner cap to force the inner cap into a tighter seal against the bottle. This outer cap includes external left-handed threads and has a lateral frangible brim fused to the thermoplastic bottle. A threaded jacking ring is screwed onto the outer cap and with a counterclockwise motion acts to (1) fracture the cap's external brim and (2) separate the outer cap from the sealed inner cap.

REFERENCES:
patent: 3419172 (1968-12-01), Lee
patent: 3664536 (1972-05-01), Emery
patent: 3730372 (1973-05-01), Komendowski
patent: 3820675 (1974-06-01), Malles

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