Patent ID: 7641174
Filing Date: 2010-01-05
Classification: A61M,F16K

Abstract:
1. A valve, comprising in combination: an inlet housing having a central bore; an outlet housing; an elastomeric valve element having a generally dome-shaped configuration with a central integral stem positioned substantially concentrically therewith, said valve element further including a plurality of notches positioned longitudinally along the length of said stem, said plurality of notches including a larger width toward said inlet and a smaller width toward said dome-shaped configuration and a depth radially inward to define a castellated configuration in said stem; and said inlet housing and said outlet housing being fastened together at a joint with said elastomeric valve element positioned therein with said stem of said valve element extending an appreciable distance into said central bore of said inlet housing such that said stem extending into said central bore aligns said valve element concentrically within said inlet housing while allowing fluid flow through said notches.