F - Mech Eng,Light,Heat,Weapons – 25 – C
Patent
F - Mech Eng,Light,Heat,Weapons
25
C
62/11
F25C 3/04 (2006.01)
Patent
CA 1315112
ABSTRACT OF THE DISCLOSURE A process and apparatus for producing snow which provide a stream of pressurized air and pressurized water; combine the air stream and the water stream to cool the water and provide a first stream of a mixture of the air and water; thereafter aspirate a portion of air in a counter-flow direction from air into the first stream and mixing therewith, to form a second stream of a mixture of air and water, the second stream being coaxial with the first stream; and disperse the second stream into freezing temperature atmosphere to freeze the water in the second stream and produce snow. In the preferred embodiment, a central stream of water of pressure of at least 300 psig is combined with air of pressure no more than about 30 psig coaxially combined and creating-the first mixture. Ice crystals are utilized as a nucleating agent to promote the freezing of water in the second stream.
606635
Duryea George R.
Holden Michael S.
Calspan Corporation
Dendrite Associates Inc.
Duryea George R.
Gowling Lafleur Henderson Llp
Holden Michael S.
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