초록 ▼

An improved joint for a variable wall thickness conduit is disclosed. The joint includes a female joint section and a male joint section. The female joint section has a body portion which terminates in a first support surface and a sealing sleeve which extends beyond the first support surface. The s

An improved joint for a variable wall thickness conduit is disclosed. The joint includes a female joint section and a male joint section. The female joint section has a body portion which terminates in a first support surface and a sealing sleeve which extends beyond the first support surface. The sleeve has a first sealing surface and a thickness. The male joint section has a body portion that terminates in a wall and a sealing nose that extends beyond the wall. The wall has a width greater than the thickness of the sleeve. The nose includes a load bearing surface, a second sealing surface and a recess in the second sealing surface. The female joint section aligns and joins to the male joint section, the load bearing surface being in force transmittal relationship with the first support surface, whereby a gap is formed between the first sealing surface and the second sealing surface. The sleeve also includes a locking member on the first sealing surface for resisting tensile forces between the female joint section and the male joint section. The joint also includes a sealing member which is at least partially retained within the recess and contacts the first sealing surface.

대표청구항 ▼

[ What is claimed is:] [1.] A conduit section comprising:a female end having a body portion which terminates in a first support surface and having a sealing sleeve extending beyond said first support surface, said sleeve having a first cylindrical inner sealing surface, said sleeve having a thicknes

[ What is claimed is:] [1.] A conduit section comprising:a female end having a body portion which terminates in a first support surface and having a sealing sleeve extending beyond said first support surface, said sleeve having a first cylindrical inner sealing surface, said sleeve having a thickness;a male end having a body portion which terminates in a wall and having a sealing nose extending beyond said wall, said nose having a load bearing end surface and a second cylindrical outer sealing surface, said nose having a recess in said second sealing surface, said wall having a width greater than the thickness of said sleeve;said female end being configured to align with and join to a male end of a second conduit section, said male end being configured to align with and join to a female end of a third conduit section, said nose having a length greater than the length of said sleeve such that a gap is formed between the end of the sleeve of said third conduit section and the wall of said male end and the end of the sleeve of said third conduit section and the wall of said male joint end are free of axially compressive load when said male end is joined to said female end of said third conduit section; andfurther comprising a sealing member that is at least partially retained within said recess and wherein said sleeve includes a locking member on said first sealing surface, said locking member including a projection that extends radially beyond said first sealing surface and that cooperates with said sealing member to resist tensile forces when said female end is joined to said male end of said second conduit.