Patents Assigned to Permasnow (Australasia) Limited
  • Method for making artificial snow
    Patent number: 4793142
    Abstract: A method of making artificial snow by mixing water with a surfactant, the surfactant preferably forming 0.03% to 5% of the mixture by weight; aerating the mixture to form a foam of bubbles; and freezing the foam to form the snow crystals. The mixture is preferably aerated with air in the ratio water:air in the range 1:2 to 1:3 (v/v). The foam of bubbles is frozen by laying it over a refrigerated grid laid over the skiing slope and the foam is preferably laid and frozen in layers until the desired depth of snow is achieved.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: December 27, 1988
    Assignee: Permasnow (Australasia) Limited
    Inventor: Alfio Bucceri
  • Method for making artificial snow
    Patent number: 4742958
    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.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: May 10, 1988
    Assignee: Permasnow (Australasia) Limited
    Inventor: Alfio Bucceri