Self-cooling containers

Details Self-cooling containers Self-cooling containers

1989-09-21

1991-02-19

Makay, Albert J.

Refrigeration

Container cutter or punch-type opening means

62 4, 62394, 62400, F25D 310

Patent

active

049932373

ABSTRACT:
The structure of the present invention comprises a self-cooling container in which a segregating wall is used to divide the container into a beverage chamber and a cooling chamber, the latter having a reaction chamber mounted therein, which in a preferred embodiment is of an elongated cylindrical shape. The reaction chamber cylinder of the present invention provides an inverted funnel-shaped bottom surface for receiving the flow of beverage from the beverage chamber portion of the container through a feed-through at the bottom of the segregating wall thereof. The funnel leads to a flow tube which is positioned in axial alignment with the cylinder, preferably through the center thereof and defining an inner wall of the reaction chamber. The reaction chamber houses a combination of chemical materials separated by a readily broken sealing device from a selected volume of distilled water, which rfeleased into the chemical constituents, initiates an endothermic reaction which extracts heat from the beverage.

REFERENCES:
patent: 3229478 (1966-01-01), Alonso
patent: 4407356 (1983-10-01), De Lau
patent: 4599872 (1986-07-01), Rist
patent: 4669273 (1987-06-01), Fischer et al.
patent: 4784678 (1988-11-01), Rudick et al.
patent: 4802343 (1989-02-01), Rudick et al.

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