Pinch control valve
OwnerSebastien Robert LEFEBVRE, Kevin GOUT +1inventors
InventorsSebastien Robert LEFEBVRE, Kevin GOUT, Philippe VERNOT
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Abstract
A pressure control pinch valve for a flexible tube, includes a fixed support cooperating with one side of a flexible tube to be controlled, a dynamic pressure arranged on the opposite side to the fixed support and able to pinch the tube in order to control the pressure therein, the dynamic pressure being composed of a rotating roller that is mounted so as to rotate about an off-center axis with respect to the center of the roller and is provided with a peripheral contact surface exerting a force directly on the tube.
Claims11
A pressure control pinch valve for flexible tube comprising a fixed support working in conjunction with one side of a flexible tube to be controlled, a dynamic pressure arranged on the side opposite the fixed support and capable of pinching the tube to control the pressure, the dynamic pressure being provided by a roller rotating around an axis which is eccentric to the center of the roller and provided with a peripheral contact surface exerting a force directly on the tube so as to gradually compress the tube against the fixed support during a rotation of the roller in the clamping direction and gradually open the tube during a rotation in the release direction, characterized by the fixed support comprising an active surface capable of compressing the tube, said active surface being plane or concave with a width (Lar) equal to or greater than 1.4 times the external diameter DE of the tube at rest.
Dependencies are inferred from the claim text.