Patent ID: 6202983
Filing Date: 2001-03-20
Classification: F16J,F16K,Y10T

Abstract:
An annular valve seal for use in valve housings having an internal annular groove adapted to receive a portion of the seal therein, the seal comprising:an annular interior surface defining a central opening of the valve seal, the central opening having a center axis, a portion of the annular interior surface being adapted for engagement with a moveable valve element when the valve element is in a closed position to prevent fluid flow through the central opening of the valve seal; andan annular exterior surface generally opposite the annular interior surface, at least a portion of the annular exterior surface being receivable within the internal annular groove of the valve housing, the annular exterior surface including a plurality of recesses therein, the recesses being circumferentially spaced about the center axis of the central opening of the valve seal.