Connection coupling connectable under pressure

Details Connection coupling connectable under pressure Connection coupling connectable under pressure

1978-09-05

1981-06-23

Cohan, Alan

Fluid handling

Systems

Flow path with serial valves and/or closures

2511496, 137614, F16L 2900, F16L 3728

Patent

active

042744415

ABSTRACT:
A connection coupling which can be coupled or connected under pressure and employed with hydraulic lines, comprising a non-pressure loaded coupling half and a coupling half under pressure, in each coupling half there is centrally mounted a valve guide. In each valve guide there is axially displaceably arranged a spring-loaded hydraulically impingeable or loadable valve in such a manner that the valve heads, during the coupling operation, are pressed against one another. The non-pressure impinged valve is shifted through twice the possible valve stroke of the pressure impinged valve, and the non-pressure impinged valve is loaded with a spring which is stronger than the spring loading the pressure impinged valve, so that upon pressure equalization the previously pressure impinged valve is pressed in its open position against a stop provided at the previously pressure impinged coupling half, there being provided a maximum valve-passage cross-section for both valves. The free passage cross-section about the valve guide at least of the non-pressure impinged coupling half is clearly greater than that of the valve-passage cross-section.

REFERENCES:
patent: 2637572 (1953-05-01), Bruce
patent: 2706646 (1955-04-01), Olson
patent: 2735696 (1956-02-01), Omon et al.
patent: 3236251 (1966-02-01), Hansen
patent: 3348575 (1967-10-01), Simak
patent: 3367366 (1968-02-01), Oliveau et al.
patent: 3791411 (1974-02-01), Bogeskov et al.
patent: 4200121 (1980-04-01), Walter et al.

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