Patent ID: 6550775
Filing Date: 2003-04-22
Classification: F16L,Y10S

Abstract:
An annular gasket for providing a fluid-tight seal between a corrugated pipe having an annular groove and an adjacent ridge that includes a recess, and a smooth annular section of a second member, when the corrugated pipe and the section are in a relative surrounded and surrounding relationship, comprising:a) a support portion made from a first material having a first durometer that includes an anchor portion shaped to fit within at least one of said recess in said ridge and said annular groove and a tip portion extending radially outward from said anchor portion, said tip portion is radially outward of said ridge, said first material of said anchor portion directly contacting said corrugated pipe in said at least one of said recess and said annular groove when said annular gasket is installed on said corrugated pipe; and b) an elastomeric gasket portion made from a second material having a second durometer that is less than said first durometer disposed on said tip portion of said support portion, said gasket portion being configured to make sealing contact with said ridge and said smooth annular section when said annular gasket is installed on said corrugated pipe and said corrugated pipe and the smooth annular section are in a relative surrounded and surrounding relationship.