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Abstract

Method and apparatus for making snow by generating water spray from a triple array of multiple nozzle sub-boom branch-pipes transversely protruding from the upper end of a main boom of a pivotably adjustable snow making pipe tower. Three air jet streams, one for each branch pipe, are simultaneously discharged under high pressure into and sequentially through the throats of each associated multiple stack of water sprays issuing from each set of branch pipe nozzles to thereby form multiple spray plumes of atomized and seeded water all directed forwardly from the upper end of the tower pipe. The water pipe may be an elliptical aluminum extrusion with two interior air tubes respectively controllably feeding large and small diameter air jet arrays to thereby provide a range of air jet water spray interaction. The pipe tower may be pivotally raised and lowered by a block-and-tackle or chain fall type drive mechanism that may be recoupled to the tops of a lifting pole and tower pipe for bodily raising the entire tower pipe and its support pipe telescopically on a ground support pole. Spreader-supported guy wires may be used to brace the tower pipe and also provide an electrical deicing circuit. Air jet control, blow-out valving and water drain conduit arrangements are disclosed, and also universally adjustable ground support systems for the pipe tower, including an underground-fed combined telescopic hydraulic ram forming air and water conduits.

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First Claim