Clamp valve

Valves and valve actuation – Tube compressors – Perpendicularly reciprocating tube contacting element

Patent

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Details

251 8, 25112911, F16L 5514

Patent

active

045963746

ABSTRACT:
An occluder valve for closing off the flow of fluid in a flexible plastic tube includes a linearly movable pinch member coupled to a rotatable shaft through a nut. The shaft is coupled to an electric motor through an electrically energizable clutch. The output shaft of the motor is mechanically constrained to rotate in only one direction. The motor, coupled through the clutch, rotates the shaft causing the pinch member to move linearly away from the tubing. A torsion spring opposes this rotation. Once opened the valve will stay opened as long as the clutch is energized as the shaft of the motor will not rotate in a closing direction. To close the valve, the clutch is deenergized and the torsion spring moves the pinch member linearly against the flexible tubing closing it off.

REFERENCES:
patent: 2219201 (1940-10-01), Smith
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patent: 4203573 (1980-05-01), Boss
patent: 4239179 (1980-12-01), Geier
patent: 4397642 (1983-08-01), Lamadrid
patent: 4500478 (1985-02-01), Furukawa et al.

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