Patent ID: 8844467
Filing Date: 2014-09-30
Classification: A01K

Abstract:
1. A drinking valve for an automatic water feeding system for animals, the drinking valve comprising: a) an inlet for connection of a water supply line; b) an outlet for supplying water to an animal; c) a passage for fluid flow from the inlet and to the outlet; d) a normally closed, resiliently deformable, elastomeric valve seat in the flow passage; e) a valve stem extending through the passage; f) wherein the elastomeric valve seat exerts an elastomeric restoring force on the valve stem to automatically close the flow path in the absence of said side forces; and g) a second o-ring, the valve stem is pivotally carried in both o-rings, the valve stem further comprising a second groove with an annular shoulder sealing against the second o-ring to prevent fluid flow therebetween when the valve seat is in said closed condition, wherein the valve stem is responsive to side forces of licking by the animal to pivot the valve stem and deform both o-rings to an open condition establishing a flow path therebetween.