Direct sealing coupling

Details Direct sealing coupling Direct sealing coupling

1991-12-17

1992-11-03

Arola, Dave W.

Pipe joints or couplings

Particular interface

285354, 285917, F16L 2500

Patent

active

051601788

ABSTRACT:
A body is engaged with a sleeve by a direct sealing coupling. The sleeve has a flange at one end acting as a belleville spring. The flange has a sleeve sealing surface and a rear annular projection. The body has a body sealing surface at one end. The sleeve sealing surface has a conical angle and comes in contact with the body sealing surface by a female nut, a female thread of which is engaged with a male thread of the body, thereby applying fastening force onto the rear annular projection to form sealing between the body and the sleeve.

REFERENCES:
patent: 3058761 (1962-10-01), Christophersen
patent: 3672704 (1972-06-01), Christianson
patent: 4660868 (1987-04-01), Totani
patent: 4685707 (1987-08-01), Miyashita
patent: 4811976 (1989-03-01), Yagisawa

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