Method for charging powdery heat insulator into a thermally insu

Details Method for charging powdery heat insulator into a thermally insu Method for charging powdery heat insulator into a thermally insu

1995-06-02

1997-12-30

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Utilizing special inert gaseous atmosphere or flushing mold...

264101, 264344, 220421, 406197, 34412, 34507, B65D 8802, F17C 1300

Patent

active

057026556

ABSTRACT:
Provided is a method for charging a powdery heat insulator into a thermally insulated, double-shelled tank between its inner vessel and outer vessel. The method comprises causing a powdery heat insulator to flow together with water into a space between the inner vessel and outer vessel of a thermally insulated, double-shelled tank, discharging the water in said space, and then drying the powdery heat insulator. The pressure in the space is then also reduced. The drying of the powdery heat insulator can be carried out by heating either the inner vessel or outer vessel, or both of these vessels, or by inert gas flow, such as nitrogen gas.

REFERENCES:
patent: 4667390 (1987-05-01), Acharya et al.
patent: 5066437 (1991-11-01), Barito et al.
patent: 5316816 (1994-05-01), Sextl et al.
patent: 5473901 (1995-12-01), Roseen

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