Abstract: In a snow-making installation the pipelines for carrying the pressurized water and compressed air are provided over the entire length thereof with branch conduits for delivering the air and water under controlled conditions to a mixing chamber wherein the air and water are mixed and delivered to the nozzles of snow-making equipment which is permanently installed. The air branch conduit is provided with a selectively actuated valve which is automatically actuated from the control station located down the mountain. A valve positioned in the water branch conduit is activated upon sensing the flow of air in the air branch conduit thereby allowing water to pass to the mixing chamber where it is mixed with the air.

Abstract: A method and apparatus for producing snow at marginal ambient temperatures while at the same time eliminating compressed air line freeze-up and oil contamination. Compressed air is delivered from a compressor to a cooling tower wherein oil particles and condensate are removed from the stream of compressed air. The oil particles and condensate-free compressed air stream is then delivered to a cryogenic unit wherein the air is contacted in heat exchange relationship with a liquefied gas so as to supercool the air stream which is then delivered to snow-making apparatus.

Abstract: A method and apparatus for removing oil particles and condensate from a stream of compressed air used in the production of snow by snow-making equipment wherein the condensate is first crystallized thus allowing the oil particles to adhere thereto and thereafter the crystallized condensate and oil particles are heated in a holding zone to form a liquid which is separated from the stream of compressed air and drained therefrom.

Abstract: A method and apparatus for removing oil particles and condensate from a stream of compressed air used in the production of snow by snow-making equipment wherein the condensate is first crystallized thus allowing the oil particles to adhere thereto and thereafter the crystallized condensate and oil particles are heated in a holding zone to form a liquid which is separated from the stream of compressed air and drained therefrom.

Abstract: A mixture of compressed air and pressurized water is ejected from snow-making nozzle means in a cold ambient atmosphere and the mixture is expanded and cooled to form a stream of falling snow particles. Into this stream, high velocity jets of chilled water droplets are discharged at points ahead of the nozzle means along generally converging paths of travel. Water droplet portions adhering to the snow particles undergo progressive freezing to produce a cumulative crystallization and growth in the size of the snow particles. The water droplets are jetted at a velocity greatly exceeding the velocity of the snow particles in the stream, and these particles are accelerated and caused to travel over greatly extended distances for a given flow of compressed air supplied, for example, at a rate customarily utilized of one hundred cubic feet per minute.