Patent ID: 11892107
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pipe joint system comprising:
a first pipe having a bell end with an outer bell surface, an inner bell surface defining a lug mouth, an arcuate segment cavity, a throat, a protrusion on a cavity-facing side of the throat, and a slot permitting access to the segment cavity;
a second pipe having a spigot end with an outer spigot surface and a weld bead extending circumferentially around the outer spigot surface and positioned toward the front of the segment cavity defined by the inner bell surface; and
a plurality of ring segments insertable into the slot, each ring segment having
an outer segment surface substantially molded to engage with the segment cavity, the outer segment surface terminating at a lead edge proximate to the lug mouth and adjacent to the outer bell surface and at a trailing edge proximate to the protrusion on the inner bell surface;
a rear segment face perpendicular to outer spigot surface and meeting the outer segment surface at the trailing edge;
an inner segment face parallel and adjacent to the outer spigot surface and meeting the outer segment surface at the lead edge; and
a large notch having a surface defined to engage the weld bead, the large notch terminating on a first edge with the inner segment face and a second edge with the rear segment face,
wherein the outer segment surface is defined by a first arc segment and a second arc segment, each arc segment having a beginning and an end, wherein the beginning of the first arc segment is at the lead edge, the end of the first arc segment is coterminous with the beginning of the second arc segment, and the end of the second arc segment is at the trailing edge, and further wherein the first arc segment and the second arc segment have distinct radial centers.