Patent ID: 11965618
Assignee: HULTEC ACQUISITION, LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 12:
13. A method for inhibiting separation of a bell end and a spigot end of a pair of pipes, the bell end including an annular groove having a front wall, the method comprising:
positioning a gasket within the groove, the gasket including a rigid segment having a spigot tooth and a plurality of bell teeth, the spigot tooth including a spigot tooth vertices,
forming a pipe joint by inserting the spigot end into the bell end and through the gasket,
pressurizing the pipe joint thereby causing the spigot end to partially withdraw from the bell end whereby the spigot tooth impinges upon the spigot end, the segment rotates in a first direction about the spigot tooth vertices and one or more of the plurality of bell teeth impinge upon the front wall, and
decreasing pressure within the pipe joint thereby causing the spigot end to partially reinsert back into the bell end whereby the segment rotates about the spigot tooth vertices in a second direction that is opposite to the first direction and at least one of the bell teeth of the plurality of bell teeth disengages from the front wall.