The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2003
Filed:
Apr. 17, 2001
Takamasa Fujiwara, Hiroshima, JP;
Koyo Industry Co., Ltd., Hiroshima, JP;
Abstract
An apparatus preventing adhesion, growth and freezing of ice pieces, which tend to happen with quality artificial snow such as fine flake snow and powder snow. The rotary valve to feed artificial snow at a constant rate includes: impeller rotary shaft which is placed in cylindrical casing along the length direction of the cylinder; a plurality of impellers which are arranged around impeller rotary shaft at an equal distance from each other in the radial direction; opening for loading of artificial snow which connects the top portion of a wall of cylindrical casing with the top portion of a housing; opening for receiving compressed air which is formed on casing side wall to receive said compressed air from a blower; and an exit for artificial snow formed at the other casing side wall to blow out artificial snow, cut in a given amount, with compressed air. The impeller is connected with the adjacent impeller at its end contacting impeller rotary shaft by a smooth surface of arched plate having arc The opening for loading of artificial snow on casing side wall and the exit for artificial snow on the other casing side wall are arranged across from each other in arc between impellers