One way flow device

Details One way flow device One way flow device

1991-03-27

1992-09-08

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137851, 137852, F16K 1514

Patent

active

051449862

ABSTRACT:
A one-way flow device (10) for use in a passageway (18) is provided. The device (10) comprises first (12) and second (14) walls attached together to form a passageway (18). A flexible diaphragm (20) having at least one orifice (24) extends across the passageway (18). The diaphragm (20) flexes between open and closed positions responsive to flow conditions in the passageway (18). In the open position, the orifice (24) is exposed, allowing fluid flow. In the closed position, the orifice (24) is sealed by the first sheet (12), substantially preventing fluid flow.

REFERENCES:
patent: 2404578 (1946-07-01), Liska
patent: 2589716 (1952-03-01), Marsh
patent: 2926692 (1960-03-01), Zillman et al.
patent: 3057373 (1962-10-01), Bragg
patent: 3401719 (1968-09-01), Rosser
patent: 3804113 (1974-04-01), Garcea
patent: 4230149 (1980-10-01), Worthen et al.
patent: 4708167 (1987-11-01), Koyanagi
patent: 4961516 (1990-10-01), Nakamura
patent: 4966185 (1990-10-01), Schram

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