Removable and pierceable activation closure for two-compartment

Details Removable and pierceable activation closure for two-compartment Removable and pierceable activation closure for two-compartment

1994-04-29

1995-04-11

Ackun, Jr., Jacob K.

Special receptacle or package

For mixing

Means to manipulate without rupture

220212, 220306, 220315, 215DIG8, B65D 2508

Patent

active

054050014

ABSTRACT:
A closure structure or cap for a two compartment vial includes a resilient stopper having a cylindrical body with a lower shoulder portion adapted for sealing fit in the mouth of the vial and a second circumferential shoulder at is upper end. A substantially rigid hollow cylindrical sleeve is configured to surround the mouth of the vial, and has, at its upper end, integrally constructed downwardly projecting longitudinally split fingers dimensioned to embrace the stopper, with the bottoms of the split fingers engaging and resting upon the lower shoulder portion of the rubber stopper. An internal groove in the split fingers engages the lower edge of a second shoulder of the stopper thereby gripping the stopper. A locking member is disposed between the longitudinally split fingers and the inside walls of the hollow cylindrical sleeve or cap, forming means to prevent spreading of the fingers and thereby preventing the loosening of the grip of the fingers on the stopper. The cylindrical sleeve is of such length that its lower end extends below the bottom of the stopper, whereby when the closure is removed from the vial and is placed on a support surface only the lower end of the sleeve rests on the surface. Optionally, the locking member includes a frangible tab which, after removal exposes the upper surface of the resilient stopper for puncturing with a hypodermic needle, thereby permitting removal of liquid from the vial with a needle and syringe.

REFERENCES:
patent: 4089432 (1978-05-01), Crankshaw et al.
patent: 4180173 (1979-12-01), Diaz
patent: 4194640 (1980-03-01), Crankshaw et al.
patent: 4267925 (1981-05-01), Crankshaw et al.
patent: 4274543 (1981-06-01), Braymer, Jr. et al.
patent: 4331233 (1982-05-01), Braymer, Jr.
patent: 4727985 (1988-03-01), McNeirney et al.
patent: 4779722 (1988-10-01), Hall
patent: 5291991 (1994-03-01), Meyer

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