Patent ID: 6511000
Filing Date: 2003-01-28
Classification: B65G,F25C

Abstract:
A rotary valve to feed artificial snow at a constant rate comprising:a cylindrical casing; an impeller rotary shaft which is placed in said cylindrical casing along the length direction of the cylinder; a plurality of impellers which are arranged around said impeller rotary shaft at an equal distance from each other in the radial direction; a housing which supports said cylindrical casing therein; an opening for loading of artificial snow, which connects the top portion of a wall of said cylindrical casing with the top portion of said housing; an opening for receiving compressed air, which is formed on the side wall of said casing at one end of said impeller rotary shaft to receive said compressed air from a blower; and an exit for artificial snow, which is formed on the other end of said casing wall to blow out artificial snow cut in a given amount with compressed air, wherein the diameter of said impeller rotary shaft is established to be about one half of the diameter of said cylindrical casing, wherein said impeller is connected with the adjacent impeller at its end contacting said impeller rotary shaft by a smooth surface of an arched plate having an arc; and wherein said opening for receiving compressed air on one end of the side wall of said casing and said exit for artificial snow on the other end of the side wall of said casing are arranged across from each other in said arc between said impellers.