Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1982-08-16
1984-01-31
Nilson, Robert G.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137501, 239542, G05D 701
Patent
active
044283970
ABSTRACT:
There is provided a fluid flow-rate control device comprising a housing, an elastic stretchable membrane dividing the interior of said housing into a first and a second chamber; an inlet port of said housing leading to a fluid source and communicating with said first chamber; and an outlet port of said housing communicating with said second chamber; wherein the first and second chambers are in fluid communication via at least one passageway the dimensions of which remain unchanged during operation, and said membrane is fixedly held and positioned between said chambers so that when said membrane is exposed to a fluid pressure differential, it is adapted to be stretched and a portion thereof to move, solely by virtue of its elasticity, between positions closer to said outlet port to restrict the rate of flow therethrough, and positions further away from said outlet port to increase the rate of fluid flow therethrough, whereby the flow of fluid through said outlet port is controlled at a constant rate by said membrane, despite variations in the fluid pressure at, at least, one of the ports.
REFERENCES:
patent: 172163 (1876-01-01), Peebles
patent: 611519 (1898-09-01), Simmance
patent: 2192042 (1940-02-01), Hoffman
patent: 2219408 (1940-10-01), Benz
patent: 2909191 (1959-10-01), Horton
patent: 2916047 (1959-12-01), Butcher
patent: 2938538 (1960-05-01), Allen
patent: 3357448 (1967-12-01), Martin
patent: 3807430 (1974-04-01), Keller
patent: 3812876 (1974-05-01), Krieter
patent: 3886968 (1975-06-01), Murrell
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