Quick-coupling fitting for pipes provided with a safety valve

Details Quick-coupling fitting for pipes provided with a safety valve Quick-coupling fitting for pipes provided with a safety valve

1995-06-05

1997-01-14

Lee, Kevin

Fluid handling

Systems

Flow path with serial valves and/or closures

F16L 3728

Patent

active

055929702

ABSTRACT:
A quick-coupling fitting for pipes comprises a female element and a male element that can be coupled together, formed by fixed parts and axially sliding parts. The fitting is provided with a valve apt for intercepting a communication port between a conduit and a passage port for the fluid in the initial stages of the coupling action and for opening it in the final stages of the coupling action. A seal of a fixed internal casing is covered by a sliding bush whatever is the axial position assumed by the bush during the initial and final stages of the coupling action.

REFERENCES:
patent: 3464436 (1969-09-01), Bruning
patent: 4742850 (1988-05-01), Ekman
patent: 5063965 (1991-11-01), Wilcox
patent: 5123446 (1992-06-01), Haunhorst et al.
patent: 5191914 (1993-03-01), Gonzalez
patent: 5443291 (1995-08-01), Stucchi et al.

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