Fluid coupling

Details Fluid coupling Fluid coupling

1993-05-06

1995-03-28

Arola, Dave W.

Pipe joints or couplings

Particular interface

285353, 285354, 285369, 285388, 285906, F16L 2500

Patent

active

054010659

ABSTRACT:
A fluid coupling provides a cap nut having an internal screw formed inside, a pipe having a mirror-finished surface formed at an end face and a groove in an outer periphery, a device for preventing rotation of the pipe together with the cap nut, in contact with the inner end face of the cap nut, a ferrule fitted in the groove formed in the outer periphery of the pipe, in contact with the device for preventing the rotation of the pipe together with the cap nut, the ferrule which transmits to the pipe a thrust of the cap nut in the pipe's longitudinal direction, a gasket fitted on an end part of the pipe, with the end face of the pipe in contact with the gasket through the entire circumference, and a body mirror-finished at the end face and provided with an external screw formed on the outer periphery, wherein the end face of the body is in contact with one side of the gasket the other side of which is in contact with the pipe, and the external screw of the body and the internal screw of the cap nut is tightened to a specific torque.

REFERENCES:
patent: 459910 (1891-09-01), Hogan
patent: 906099 (1908-12-01), Burgess
patent: 1675808 (1928-07-01), Kliss
patent: 2567113 (1951-09-01), Kristensen
patent: 4076286 (1978-02-01), Spontelli
patent: 4435005 (1984-03-01), Berger et al.
patent: 4685707 (1987-08-01), Miyashita
patent: 4811976 (1989-03-01), Yagisawa

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