Cartridge for holding a first and second fluid

Details Cartridge for holding a first and second fluid Cartridge for holding a first and second fluid

1999-10-22

2000-07-25

Sewell, Paul T.

Special receptacle or package

For mixing

Tear strip or piercer

206568, 141330, 215DIG8, 222 835, B65D 2508

Patent

active

06092649&

ABSTRACT:
A cartridge for holding a first and a second fluid including an outer capsule containing the first fluid. An inner capsule is enclosed within the outer capsule and has a portion attached to a portion of an inner surface of the outer capsule. The inner capsule contains the second fluid. A self-sealing preferable section is disposed on the outer capsule and a perforatable section is disposed on the inner capsule and is generally aligned with the self-sealing perforatable section of the outer capsule. The concentration of the second fluid in the inner capsule increases the shelf life of the second fluid, relative to the shelf life of the mixture of the first fluid and the second fluid, while the outer capsule and the first fluid act as a protective layer to cause the second fluid to be mixed with the first fluid to form a non-hazardous mixture in the event of an accidental rupture of the inner capsule, thus increasing the variety of fluids, and their associated shelf lives, that can be stored or transported. In the alternative, the present invention is directed to a base unit for receiving a cartridge having an outer capsule containing a first fluid and enclosing an inner capsule containing a second fluid. The base unit includes a body having a recess that receives the cartridge. A perforating tube is disposed in the recess of the body and has a distal end adapted to perforate the outer capsule and to perforate the inner capsule. The perforating tube has at least one opening displaced from the distal end for removing the mixture of the first fluid and the second fluid from the cartridge. In the alternative the present invention is directed to a system for mixing a first fluid and a second fluid including the above cartridge and base unit.

REFERENCES:
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patent: 3964640 (1976-06-01), Laughlin
patent: 4446989 (1984-05-01), Brannen
patent: 4752444 (1988-06-01), Bowen et al.
patent: 5008079 (1991-04-01), Wutzler et al.
patent: 5029718 (1991-07-01), Rizzardi
patent: 5037623 (1991-08-01), Schneider et al.
patent: 5048723 (1991-09-01), Seymour
patent: 5077008 (1991-12-01), Kralovic et al.
patent: 5225160 (1993-07-01), Sanford et al.
patent: 5348711 (1994-09-01), Johnson et al.

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