Patent ID: 6126173
Filing Date: 2000-10-03
Classification: F16L

Abstract:
In combination, a cast member having an opening; a conduit extending therethrough and an annular gasket for providing a watertight seal between the opening in said cast member and said conduit extending there through, an outer surface of said conduit engaging said gasket, said conduit extending through said gasket over an entire length of said gasket, said gasket being solid throughout and being formed of a resilient compressible material, said gasket generally tapering from a first end thereof toward a second end and being provided near said second end with a tapered projection which extends outside of said opening and in an outward radial direction away from said opening so as to rest against a marginal portion surrounding the opening while the remaining portion of the gasket extends into said opening so that said gasket gradually increases in thickness from said tapered projection towards said first end to undergo gradually increasing compression upon insertion of the conduit into the second end of the gasket so as to gradually compress the gasket as the conduit moves through the gasket; andsaid first end of said gasket having a shallow curved concave annular recess which provides compression relief to increase yieldability and compressibility of the gasket near said first end and provide a more controlled compression of the gasket near said first end and for providing a good water-tight fit for a conduit of reduced diameter as compared with gaskets utilizing a hollow space therein.