Patent ID: 6293290
Filing Date: 2001-09-25
Classification: B60S

Abstract:
A vehicle wash system comprising:a. one or more water supply lines;b. one or more chemical supply lines, each chemical supply line joining one of the water supply lines at a respective first juncture;c. one or more premix lines, each premix line being situated downstream from one of the first junctures;d. two or more mixing chambers, each mixing chamber being situated downstream from one of the premix lines, each mixing chamber having a flow area greater than the flow area of its upstream premix line;e. one or more postmix lines, each postmix line being situated downstream from one of the mixing chambers;f. a delivery system downstream from the one or more postmix lines, the delivery system including one or more hand-held spray nozzles, each spray nozzle bearing one or more fluid delivery orifices thereon;g. a fluid switch situated in line with each mixing chamber whereby fluid from each mixing chamber may be selectively supplied to each spray nozzle; andh. a vehicle washing bay having a vehicle path through which a vehicle may drive, wherein at least one of the fluid delivery orifices is situated adjacent the vehicle path.