초록 ▼

An end portion of a pipe fitting or coupling member is provided. The member has a central longitudinal axis, a mouth at its very end, and an annular groove for receiving a gasket. The groove presents a first end wall spaced from and axially facing the mouth. The end wall has a radial inward end and

An end portion of a pipe fitting or coupling member is provided. The member has a central longitudinal axis, a mouth at its very end, and an annular groove for receiving a gasket. The groove presents a first end wall spaced from and axially facing the mouth. The end wall has a radial inward end and a radial outward end. A radially inwardly facing axially extending bottom wall extends substantially parallel to the longitudinal axis towards the mouth and extends from the radial outward end of the first end wall. The bottom wall terminates at a second wall axially facing the mouth. The second wall extends radially outwardly from the bottom wall has a radial inward end and a radial outward end, the radial inward end of the second wall connected to the bottom wall. The radial outward end of the second wall terminates further from the longitudinal axis than the bottom wall at a radially facing wall which extends axially away from the bottom wall towards the mouth for part of its extension and then being bent over to extend towards the longitudinal axis. A gasket is captured in the groove and has a central longitudinal axis and axially spaced opposing ends interconnected by an outer wall. One of the opposing ends of the gasket engages the first end wall of the groove and the other end of the gasket comprises an offset portion for being received between and in intimate contact with the second wall and radially facing axially extending wall bent over for part of its extension.

대표청구항 ▼

An end portion of a member, the end portion including a gasket attached thereto, the end portion comprising a mouth, a central longitudinal axis, an axially facing first end wall remote from the mouth, a radially facing axially extending wall extending towards the mouth for part of its extension and

An end portion of a member, the end portion including a gasket attached thereto, the end portion comprising a mouth, a central longitudinal axis, an axially facing first end wall remote from the mouth, a radially facing axially extending wall extending towards the mouth for part of its extension and being bent over to extend towards the longitudinal axis, an axially facing radially extending second wall closer to the mouth than the axially facing first end wall, said second wall having an inner radial end and an outer radial end, the outer radial end joined to the axially extending wall, a bottom wall extending longitudinally away from the mouth to the axially facing first end wall extending radially towards the central longitudinal axis, said gasket comprising a central longitudinal axis, axially spaced, opposing ends, an outer wall extending parallel to, and spaced radially from the longitudinal axis of the gasket and interconnecting the opposing ends, an inner wall closer the longitudinal axis of the gasket than the outer wall, a sealing lip, one of the opposing ends carrying an offset portion radially offset from the outer wall on the radial side of the outer wall remote from the longitudinal axis of the gasket, the offset portion being received between, and in intimate contact with, the second wall and the radially facing axially extending wall bent for part of its extension over the offset portion to extend towards the longitudinal axis thereby locking the gasket body against movement axially in a direction away from the mouth and permitting the sealing lip to be stretched.