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

Claim 8:
9. A method for inhibiting separation of a bell end from a spigot end of a pair of pipes, the bell end including a groove having a front wall, the method comprising:
positioning a gasket within the groove, the gasket including a rigid segment having (i) a spigot tooth with a spigot tooth vertices, the spigot tooth being configured for engaging the spigot end, (ii) a plurality of bell teeth configured for engaging the bell end, the plurality of bell teeth including a first tooth with a first tooth vertices, a second tooth with a second tooth vertices, a third tooth with a third tooth vertices, and a fourth tooth with a fourth tooth vertices, (iii) a first length defined between the spigot tooth vertices and the first tooth vertices, (iv) a second length defined between the spigot tooth vertices and the second tooth vertices, (v) a third length defined between the spigot tooth vertices and the third tooth vertices, and (vi) a fourth length defined between the spigot tooth vertices and the fourth tooth vertices, the second length being greater than the first length, the third length being greater than the second length and the fourth length being greater than the third length,
inserting the spigot end into the bell end and through the gasket,
partially withdrawing the spigot end 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
impinging the first tooth and the second tooth on the front wall while the fourth tooth is spaced apart from the front wall.