Suck back valve

Details Suck back valve Suck back valve

1998-03-06

2000-02-29

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

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

Nozzle cleaner, flusher or drainer

239106, 222571, 251 3002, 251 635, 25112915, 251331, B05B 1500

Patent

active

060299037

ABSTRACT:
A suck back valve is equipped with a coupling having a fluid passage with a first port formed in one end, and a second port formed in another end thereof, a suck back mechanism for sucking a pressurized fluid inside the fluid passage under a displacement action of a second diaphragm which is displaced by a pilot pressure, and an ON/OFF valve disposed coaxially with the second diaphragm for opening and closing the fluid passage by displacement and movement thereof with the second diaphragm.

REFERENCES:
patent: 3895748 (1975-07-01), Klingenberg
patent: 4394945 (1983-07-01), Taylor, Jr.
patent: 4597719 (1986-07-01), Tano
patent: 5134962 (1992-08-01), Amada et al.
patent: 5386849 (1995-02-01), Gilchrist et al.
patent: 5423482 (1995-06-01), Mueller et al.

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