Dewar cooling device

Details Dewar cooling device Dewar cooling device

1974-12-23

1976-10-05

O'Dea, William F.

Refrigeration

Storage of solidified or liquified gas

Storing solidified gas

165179, 165181, 220 9LG, 220 14, F17C 702

Patent

active

039842223

ABSTRACT:
A dewar vessel adapted to have fluid pumped therefrom to reduce its internal pressure and temperature has a porous plate located in the path of the pumped fluid. For a given fluid pressure and viscosity, the pores are sized to provide a sufficiently low pressure drop across the plate while still providing a sufficiently large surface area for the transfer of heat between the vessel and the pumped fluid. A sheet-like liquid-retaining collar extends from the interior wall of the dewar container toward the center thereof so that the container liquid is restrained from moving along the container's inner wall when the container is tilted.

REFERENCES:
patent: 3108447 (1963-10-01), Maher et al.
patent: 3538714 (1970-11-01), Kling et al.
patent: 3705498 (1972-12-01), DeHaan

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