Energized restraining gasket for mechanical joints of pipes

Details Energized restraining gasket for mechanical joints of pipes Energized restraining gasket for mechanical joints of pipes

2006-09-12

2006-09-12

Bochna, David (Department: 3679)

Pipe joints or couplings

Packed

Externally with clamp

C285S343000, C285S342000, C285S421000, C029S890140

Reexamination Certificate

active

07104573

ABSTRACT:
A gasket for converting a standard mechanical joint into a restrained mechanical joint without the need for altered configuration of the bell, spigot, or gland of the joint, and without the need for additional fittings or devices. In the practice of the present invention, a standard mechanical joint's bell and gland configuration can be employed to connect a spigot end of one pipe length to the bell end of another pipe length in a restrained relationship, with the restraint based on forces superior to rubber-to-pipe friction. In more particular discussion of the embodiments taught, the invention includes forming the gasket to fit within the bell in such a manner that a void, or gutter, exists during rest, into which void the gasket compresses, which in turn influences the rotational motion of the segment. In this manner, the configuration of the gasket influences the timing and extent of rotation throughout the process of securing the gland to the bell.

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