Ring valve

Details Ring valve Ring valve

1985-07-30

1986-12-16

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375123, 13751615, 417562, 417564, F16K 1508

Patent

active

046289585

ABSTRACT:
A ring valve apparatus is designed for efficient transfer of liquids and gases and for attaining near-perfect vacuum state of gases. Intake means consist of a flexible ring valve and three ports encompassed by valve seats. Exhaust means include a rigid ring valve, three port openings encompassed by valve, and three cylinders containing spring-loaded plungers. The configuration of the piston head and structure of the valves make possible a complete exhaustion of gases from a cylinder, a feature required for attaining near-perfect vacuum in a chamber.

REFERENCES:
patent: 1001305 (1911-08-01), Rix
patent: 3050237 (1962-08-01), Nicholas

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