Patent ID: 6588767
Filing Date: 2003-07-08
Classification: F16L

Abstract:
A mat gasket for a tapping saddle disposed between an outer shell and an inner main conduit and further disposed about aligned apertures in said outer shell and said inner main conduit, said mat gasket comprising:a flexible, compressible, resilient member having first outer and second inner opposed surfaces and a circular aperture therein, wherein said first outer surface engages the outer shell and said second inner surface engages the inner main conduit about the respective aligned apertures therein; a pair of concentric O-rings disposed on the first outer surface of said flexible, compressible, resilient member about and adjacent to the aperture therein, wherein said O-rings engage and form a double seal with the outer shell; a generally circular ribbed portion disposed on the second inner surface of said flexible, compressible, resilient member about and adjacent to the aperture therein, wherein said ribbed portion includes a plurality of circular upraised ribs concentrically disposed about and in a radially spaced manner from the aperture in said resilient member, and wherein said circular upraised ribs engage and form plural seals with the inner main conduit; and a grid pattern disposed about said circular upraised ribs on the second inner surface of said flexible, compressible, resilient member for engaging and forming a seal with the inner main conduit.