GASKET FOR PARABOLIC RAMP SELF RESTRAINING BELL JOINT

摘要

Gaskets for use with a bell and spigot coupling system are disclosed herein. The gasket comprises an elastomeric member having a front edge, a first section, and a second section. Axial forces generated by the insertion of the spigot to the first section of the elastomeric member displace the first section of the elastomeric member in an axial and radial direction.

主权项

1. A system for sealing a spigot, the system comprising:
a gasket, the gasket having a front end, a first section, and a second section, the gasket defining at least one groove in the first section; at least one substantially rigid member contacting the front end, the substantially rigid member made of a material that is more rigid than a material of the gasket; and a bell encircling the gasket, the bell defining a gasket seating area, the bell including an inner surface, wherein the inner surface includes a blended curve and directly contacts the at least one substantially rigid member.