发明名称 SNOWMAKING APPARATUS AND METHODS
摘要 SNOWMAKING APPARATUS AND METHODS An improved ducted-fan type snowmaking machine and method wherein an impeller is driven at a variable speed selected to produce a variable noise level depending on the proximity of the apparatus to an inhabited area. The machine includes air stream straightening vanes for converting a spiraling stream to a linear, laminar flow stream, and a plurality of neucleating nozzles positioned within the confines of the duct.
申请公布号 CA2057958(A1) 申请公布日期 1992.07.12
申请号 CA19912057958 申请日期 1991.12.18
申请人 SNOW MACHINES INCORPORATED 发明人 VANDERKELEN, JAMES B.;TOPHAM, WILLIAM C.;KOENIG, DONALD R.;VANDERKELEN, JOSEPH M.
分类号 F04D27/02;F25C3/04;(IPC1-7):F25C3/04 主分类号 F04D27/02
代理机构 代理人
主权项
地址