Patent ID: 6494466
Filing Date: 2002-12-17
Classification: F16J,F16K

Abstract:
A seal for a valve housing containing a rotatable valve and having an annular interior surface with an internal annular groove in the interior surface that extends outwardly into a monolithic portion of the valve housing, the annular groove being adapted to receive the seal by pushing the seal outwardly into the groove, the seal comprising:a resilient ring dimensioned to fit inside the internal annular groove when the ring is inserted into the internal annular groove, the resilient ring has an annular interior surface, an annular exterior surface, and axially opposite first and second circular end surfaces that extend radially between the annular interior surface and the annular exterior surface, the ring has a cross-sectional area that interlocks with the groove, and the ring cross-sectional area leaves at least one void between the internal annular groove and the first and second circular end surfaces of the ring when the ring is inserted into the internal annular groove.