Patent ID: 7810787
Filing Date: 2010-10-12
Classification: A01K

Abstract:
1. An animal watering valve comprising: A. a housing which has a longitudinal bore formed therein having an upstream inlet and a downstream outlet; B. a valve seat which is disposed in said bore; C. an elastomeric diaphragm which is disposed in said bore upstream of said valve seat and which includes D. a valve stem which is located in said bore and which extends from said diaphragm toward said outlet, said valve stem having a head that is clamped between said diaphragm and said valve seat and a tail that is laterally deflectable to move said valve stem head relative to said diaphragm from a seated position in which said valve stem head seals against said valve seat to prevent water flow though said valve to an unseated position in which said valve stem head pivots relative to said valve seat to permit water to flow through said apertures in said diaphragm, between said valve stem head and said valve seat, and out of said valve, said valve stem head having an upstream surface that abuts said seat portion of said diaphragm, wherein at least portions of said flow aperture outlets are located radially inwardly of and axially upstream of said upstream surface of said valve stem head when the valve stem tail is in both the deflected and undeflected positions thereof.