Diaphragm reversing valve

Details Diaphragm reversing valve Diaphragm reversing valve

1971-12-07

1977-07-26

Nilson, Robert G.

Fluid handling

Systems

Multiple inlet with multiple outlet

251 611, F16K 1110

Patent

active

040376222

ABSTRACT:
In the present invention, four valves are connected in tandem to form a closed loop. A pair of inlet channels and a pair of outlet channels are connected between the valves and in such a manner as to form a bridge-circuit arrangement. The valves are preferably disc-shaped chambers with orifices in their rooves by means of which they interconnect with one another. In each valve is also located a diaphragm resting on the floor of the valve chamber and which may be raised and pressed against the roof of the chamber to cover the orifices there, thereby closing that particular valve. By thusly closing one pair of diagonally opposing valves or the other, the connections between the inlet and outlet channels can be reversed. The diaphragms can be raised by applying a relatively high pressure to their undersides through orifices located in the floors of their respective valve chambers.

REFERENCES:
patent: 2865402 (1958-12-01), Miller
patent: 2911005 (1959-11-01), Adelson
patent: 2984257 (1961-05-01), McCormick et al.
patent: 3080887 (1963-03-01), Brandenberg

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