Portable self-cooling and self-heating device for food and bever

Details Portable self-cooling and self-heating device for food and bever Portable self-cooling and self-heating device for food and bever

1993-05-28

1994-07-26

Tapolcai, William E.

Refrigeration

Vortex tube, e.g., ranque

62293, 62371, F25B 902

Patent

active

053318170

ABSTRACT:
A portable, self contained heating or cooling apparatus for a beverage can is disclosed. A vortex tube is provided which supplies the needed heating or cooling effect to the beverage in the can.

REFERENCES:
patent: 3074243 (1963-01-01), Tilden
patent: 3144754 (1964-08-01), Tilden
patent: 3525236 (1970-08-01), Solhkhah
patent: 3636726 (1972-01-01), Rosenfeld et al.
patent: 3654768 (1972-04-01), Inglis et al.
patent: 3786643 (1974-01-01), Anderson et al.
patent: 4640102 (1987-02-01), Tenenbaum et al.
patent: 4656838 (1987-04-01), Shen
patent: 4736599 (1988-04-01), Siegel
patent: 5010736 (1991-04-01), York et al.
patent: 5201183 (1993-04-01), Ramos

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