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US 5,628,456 AGranted
Below surface control system for snow making devices
OwnerHerman K. Dupreinventor
Life of this patent
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OwnerHerman K. Dupreinventor
Estimating the term…
A snow making system wherein snow making devices, such as snow towers or snow guns, are distributed along a ski slope for producing man made snow with the supply of compressed air and water under pressure in subfreezing conditions. Valving for the supply of air and water to each snow making device is housed underground in a control pit enclosure with a removable access lid. The valves are ganged together for simultaneous operation by a single handle which is exposed through and above the lid for manual operation. The air and water connection hoses are also exposed through and above the lid for connection to an associated snow making device. The handle and these connection hoses are removable to present a flush nonhazardous ground surface in the off ski season. The valves are three-way valves which are adapted to drain all water from the associated snow making device when they are in the off condition in order to automatically drain the devices and protect them from freeze-up.
In a snow making system including a snow making device adapted to produce a spray of artificial snow from a combination of compressed air and water supplied thereto from remote compressed air and water supplies, valve means operatively connected between said snow making device and the supplies of compressed air and water for controlling the supply of air and water to the snow making device, and control pit enclosure means adapted for enclosing said valve means below a ground surface with a removable access lid and bottom water drain means for draining off water, said valve means including air and water valves ganged for simultaneous valving of the air and water supply and said valves adapted for draining water from the connected snow making device when said valves are in their off position, the improvement comprising:
A snow making system comprising:
Dependencies are inferred from the claim text.