Joint assembly for flexible and semi-rigid pipings

Details Joint assembly for flexible and semi-rigid pipings Joint assembly for flexible and semi-rigid pipings

2005-05-12

2008-03-11

Hewitt, James M. (Department: 3679)

Pipe joints or couplings

Nonmetal to metal

Internal member

C285S245000, C285S256000, C285S259000

Reexamination Certificate

active

07341284

ABSTRACT:
A joint assembly for flexible and semi-rigid piping, such as high density polyethylene piping or the like. The assembly comprises a joint end sleeve and a nut. The joint end sleeve comprises in series first, second, third and fourth co-axial sections of circular cross-sections. The first and second sections are to be disposed within the end of the piping. The nut, with an internal threaded surface, is made of a material harder than the one used in the piping and with a higher or equal hardness than the one on the joint end sleeve. The nut is configured to press the end of the piping around the first and second sections.

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