Back to results
US 4,742,958 AGranted
Method for making artificial snow
AssigneePermasnow (Australasia) Limited
InventorAlfio Bucceri
Life of this patent
Estimating the term…
Abstract
A method of making artificial snow by mixing water with a water swellable polymer, preferably polyacrylamid, to approximately 50%-70% of the maximum water retention capacity of the polymer, aerating the mixture and freezing the mixture to produce snow crystals. The snow crystals are laid on a refrigerated floor to form a skiing slope.
Claims18
A method for making artificial snow comprising the steps of:
- (a) mixing water with a water swellable polymeric material at less than the maximum water retention capacity of the material to form an aqueous gel;
- (b) aerating the aqueous gel;
- and
- (c) freezing the aerated gel to form snow crystals.
1 more element
Dependencies are inferred from the claim text.