Suck back valve

Details Suck back valve Suck back valve

1998-03-19

1999-09-14

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With cleaning means, drip collecting, waste disposal or soil...

Nozzle cleaner, flusher or drainer

239106, 239 75, 222571, 251 11, 251 3002, 251 635, 251331, B05B 1506

Patent

active

059509236

ABSTRACT:
A suck back valve is proposed, comprising a suck back mechanism for sucking a coating liquid inside a fluid passage under a negative pressure action of a diaphragm displaced by a pilot pressure, an ON/OFF valve for opening and closing the fluid passage under action of the pilot pressure, and a flow amount control device for controlling the pilot pressure supplied to the ON/OFF valve.

REFERENCES:
patent: 3895748 (1975-07-01), Klingenberg
patent: 4394945 (1983-07-01), Taylor, Jr.
patent: 4597719 (1986-07-01), Tano
patent: 4943032 (1990-07-01), Zdeblick
patent: 5134962 (1992-08-01), Amada et al.
patent: 5423482 (1995-06-01), Mueller et al.

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