Patent ID: 11953134
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A fitting for a pipe comprising:
a cylindrical sleeve comprising:
a gripper ring cavity having a conical bearing surface with a smaller diameter toward a distal end and a larger diameter toward a proximal end;
a plurality of gripper rings disposed within the gripper ring cavity, wherein an outer surface of the rings slidingly engages the bearing surface, and wherein the rings are movable in an axial direction along the conical bearing surface; and
a spigot disposed concentrically within the sleeve and having an outer surface sized to fit within a proximal end of the pipe;
wherein the sleeve is slideable along the spigot in a proximal direction, wherein the inner surface of the gripper rings and the outer surface of the spigot define an annular space with a first radial width sized to accept insertion of the proximal end of the pipe, and wherein, when the sleeve is moved with respect to the spigot in the proximal direction toward a sealed position, the plurality of gripper rings are inwardly compressed by the bearing surface to grip an outer surface of the pipe.