Refrigeration – Cooler utilizing solidified gas
Patent
1987-08-04
1988-08-30
King, Lloyd L.
Refrigeration
Cooler utilizing solidified gas
62388, 62457, F25D 312
Patent
active
047667400
ABSTRACT:
A container for transporting an accidentally severed limb 17 or other body part and keeping it cool to aid the success rate of replantation surgery comprising a suitcase-like openable container 2 made of aluminium sheet 4 with a heat insulating covering 5. To maintain the temperature of the container between 2.degree. C. and 6.degree. C., a cylinder of carbon dioxide 19 is mounted in a holder 9, 18 on the outside of the container and has its shut-off valve 20 connected to an injector nozzle 23 in the container. Carbon dioxide discharged by the nozzle 23 produces dry ice in the container 2 to cool it. The flow of gas through the nozzle 23 is controlled by a thermostatic device which includes a spring 24 made of a shape-memory alloy which allows the nozzle 23 to be closed at temperatures below 2.degree. C. but which regains its strength at a temperature of 6.degree. C. to open the nozzle when the inside of the container has warmed up again to this temperature.
REFERENCES:
patent: 1903171 (1933-03-01), Cordrey
patent: 3914954 (1975-10-01), Doerig
patent: 3922878 (1975-12-01), Jalali
patent: 4288996 (1981-09-01), Roncaglione
patent: 4462215 (1984-07-01), Kuraoka et al.
patent: 4606195 (1986-08-01), Winkler
Bradley Laurie
Cumner Clive S.
Lilleystone Richard J.
Bradley Laurie
King Lloyd L.
Lilleystone Richard J.
The Distillers Company (Carbon Dioxide) Limited
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