Fluid handling – Systems – Sequentially closing and opening alternately seating flow...
Patent
1976-09-27
1978-03-21
Nilson, Robert G.
Fluid handling
Systems
Sequentially closing and opening alternately seating flow...
F16K 1116
Patent
active
040797538
ABSTRACT:
Disclosed is a solenoid valve which is useful essentially as a control device for pressure-actuated equipment which responds proportionally to an electric signal transmitted to the valve in accordance with the strength thereof. The valve functions in perhaps its most important utilization to maintain a static pressure which may be varied in accordance with the strength of the current supplied to the solenoid of the valve. The valve is constructed for operation by which an output pressure is modulated, according to the current strength of the solenoid, between two supply pressures admitted to separate portions of the valve. One supply pressure is lesser and the other is greater than generally contemplated output pressure.
REFERENCES:
patent: 2927608 (1960-03-01), Jenkins et al.
patent: 3151914 (1964-10-01), Stelzer
patent: 3605813 (1971-09-01), Nakano et al.
Midland-Ross Corporation
Nilson Robert G.
Portz Woodrow W.
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