Patent ID: 6253708
Filing Date: 2001-07-03
Classification: A01K,Y10T

Abstract:
A drinker system for supplying dispersed low pressure drinker water from a high pressure water source, said system comprising:a plurality of drinker runs, each including a three-way selector valve, a drinker line having a plurality of drinkers and a control valve assembly between said selector valve and said drinker line;each said selector valve including first and second selector valve inlets, an outlet connected to one of said control valve assemblies and selector means for connecting either said first or said second selector valve inlet to said selector output;a control pressure supply network connected to said first selector valve inlets;a high pressure supply network connected from said water source to said second selector valve inlets;a pressure reducing controller connected between the water source and said control pressure supply network for supplying said control pressure supply network with water at a reduced control pressure;each said control valve assembly including a proportional relay valve biased closed with a first, relatively weak spring for providing low pressure drinker water to the corresponding said drinker line in response to the receipt of control pressure water from the corresponding said selector valve; andeach said control valve assembly including a relief valve biased closed with a second, relatively strong spring for providing high pressure rinse water to the corresponding said drinker line in response to the receipt of high pressure water from the corresponding said selector valve.