Line cleaning apparatus

Details Line cleaning apparatus Line cleaning apparatus

1990-10-26

1992-02-25

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Gas pressure storage over or displacement of liquid

137240, 137512, 137855, 222148, B67D 107

Patent

active

050904400

ABSTRACT:
An apparatus for cleaning fluid lines is disclosed. This apparatus contains a fluid manifold, a valve, and a line connecting said fluid manifold and said valve. The valve used in the apparatus contains at least two input ports, at least two output ports, means responsive to fluid pressure for closing off the flow of liquid from a first of said ports, and means responsive to fluid pressure for opening the flow of liquid from a second of said ports.

REFERENCES:
patent: 2582226 (1946-04-01), Doak
patent: 2693812 (1954-11-01), Jones
patent: 3260274 (1966-07-01), Morgan
patent: 3460168 (1969-08-01), Bruyne
patent: 3633605 (1972-01-01), Smith
patent: 4527585 (1985-07-01), Mirabile
patent: 4941593 (1990-07-01), Hicks
patent: 5572230 (1991-02-01), Mirabile

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