Pinch valve device

Details Pinch valve device Pinch valve device

1983-11-30

1986-05-13

Scott, Samuel

Valves and valve actuation

Tube compressors

251 9, F16L 5514

Patent

active

045881596

ABSTRACT:
A pinch valve device comprising a nipping element having a pair of nipping portions adapted to be brought nearer to and apart from each other and to nip a resilient tube therebetween when brought nearer with each other to thereby close a passage in the tube, and a stop element adapted to stop at least one of the nipping portions, tended to be apart from each other by the resilient repulsion of the resilient tube, at a predetermined spacing allowing to close the passage in the resilient tube when the nipping portions are brought nearer to each other than the predetermined spacing against the resilient repulsion of the resilient tube can surely close the passage in the resilient tube and reduce the degradation of the tube.

REFERENCES:
patent: 628391 (1899-07-01), Clarke
patent: 1876988 (1932-09-01), Lormor
patent: 2649635 (1953-08-01), Peterson
patent: 2796228 (1957-06-01), Kelly
patent: 3390860 (1968-07-01), Kavanu
patent: 3473738 (1969-10-01), De Matta
patent: 3539081 (1970-11-01), Norton
patent: 4046363 (1977-09-01), Whitley
patent: 4262876 (1981-04-01), Willatt
patent: 4407434 (1983-10-01), Kempf

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