초록 ▼

A resilient compressible gasket having an embedment portion, a pipe engaging portion and a intermediate "radius" portion integral with the embedment and pipe engaging portions. The gasket assumes a "pleated" configuration when in the operative position, the pipe engaging portion extending through th

A resilient compressible gasket having an embedment portion, a pipe engaging portion and a intermediate "radius" portion integral with the embedment and pipe engaging portions. The gasket assumes a "pleated" configuration when in the operative position, the pipe engaging portion extending through the embedment portion, yielding a gasket which compensates for deviation of the pipe from a nominal horizontal alignment without any reduction in the water-tight seal provided by the gasket. The gasket is sized to provide for easy insertion of a corrugated pipe into the pipe engaging portion while providing an excellent water-tight seal when clamped into position about one or more annular recesses and peaks of the corrugated pipe. Another embodiment of the gasket is designed to be secured to a cored or performed opening in a cast member through the use of an expansion-type clamping assembly. The free end of the pipe engaging portion is preferably provided with a radially outwardly directed flange which greatly facilitates alignment of the pipe engaging portion with an annular recess (or an annular peak) of a corrugated pipe.

대표청구항 ▼

1. A gasket for providing a liquid-tight seal between a pipe having corrugated outer periphery defined by alternating substantially U-shaped peaks and recesses, and an opening in a wall into which said pipe at least partially extends, said gasket comprising;a resilient rubber-like, annular-shaped me

1. A gasket for providing a liquid-tight seal between a pipe having corrugated outer periphery defined by alternating substantially U-shaped peaks and recesses, and an opening in a wall into which said pipe at least partially extends, said gasket comprising;a resilient rubber-like, annular-shaped member having an embedment portion for embedment into said opening and a pipe engaging portion encircling and engaging an outer periphery of said pipe; a joining portion arranged between and integrally joined to said embedment portion and said pipe engaging portion; said embedment portion having a cross-sectional shape to enhance securement of said embedment portion in said sidewalk opening, said embedment portion being joined to said sidewalk during a casting operation; said pipe engaging portion being urged into one of said annular-shaped recesses by an adjustable clamping band; the thickness of the pipe engaging portion and the width of the clamping band being selected to prevent the gasket from engaging the base of the recess into which the pipe engaging portion is clamped when the clamping band is tightened by an amount sufficient to assure a liquid-tight seal.