Pinch valve

Details Pinch valve Pinch valve

1981-05-26

1984-01-10

Spiegel, H. Jay

Fluid handling

Line condition change responsive valves

Direct response valves

251 4, 251 9, F16L 1100

Patent

active

044248326

ABSTRACT:
Various embodiments of pinch valves include an annular rib 5 formed on the inner walls of an elastic tube 4. The annular rib 5 is obliquely oriented in the elastic tube 4 and permits passage of fluid therethrough when the tube 4 is not deformed. Upon selective deformation of the tube 4 by choking means 6,7, the annular rib 5 prevents passage of fluid through the tube 4.

REFERENCES:
patent: 2371434 (1945-03-01), Eppler
patent: 2572658 (1951-10-01), Perkins
patent: 3770023 (1973-11-01), Rink
patent: 3836057 (1974-09-01), MacManus
patent: 4275761 (1981-06-01), Waldhauser

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