Sealing element and a coupling device and a valve device...

Details Sealing element and a coupling device and a valve device... Sealing element and a coupling device and a valve device...

2011-01-18

2011-01-18

Hewitt, James M (Department: 3679)

Pipe joints or couplings

With fluid pressure seal

Expansible internal sleeve-type gasket

C285S031000, C285S100000, C285S101000, C285S229000, C285S334200

Reexamination Certificate

active

07871110

ABSTRACT:
A sealing element that includes a hollow body of metallic material and first and second male sealing members formed at a respective end of the body. The respective male sealing member has an external spherical contact surface designed for mating with a corresponding internal conical contact surface of a female sealing member so as to form a fluid-tight seal between the male sealing member and the female sealing member when their contact surfaces are pressed against each other. Also, a coupling device and a valve device provided with the sealing element.

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