Apparatus for production of compression-solidified snow

Details Apparatus for production of compression-solidified snow Apparatus for production of compression-solidified snow

1987-03-16

1988-09-13

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 66, 62341, B29C 300

Patent

active

047706848

ABSTRACT:
An apparatus for production of compression-solidified snow comprises a pressure chamber with a rust preventive inner face, a pressure head for applying pressure to snow, a boost-typed pressure cylinder installed at one end of the pressure chamber and equipped with the pressure head, a hopper having an inner face which allows snow to slide thereon smoothly, and a pusher installed in a snow compression zone at the other end of the pressure chamber. A method of compressing snow into solidified snow lump is characterized in that snow having a temperature of 0.degree. to -30.degree. C. is compressed and formed with a pressure of 10 to 200 kg/cm.sup.2 at a head displacement velocity of 0.1 to 150 mm/sec for pressure holding time of 0.about.300 seconds into a solid having a density of 0.6 g/cm.sup.3 or more.

REFERENCES:
patent: 2151855 (1939-03-01), Kobold
patent: 2565245 (1951-08-01), Lebovitz
patent: 2921444 (1960-01-01), Bump et al.
patent: 2927439 (1960-03-01), Polk
patent: 3685309 (1972-08-01), Harza
patent: 3858485 (1975-01-01), Rosaen et al.
patent: 4412852 (1983-11-01), Umino et al.

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