Watson Marlow Gmbh

Andrew John Green

A peristaltic pump comprises a housing ( ) in which a peristaltic action is applied to a tube ( ) by a rotor ( ). The tube ( ) has locating means in the form of flanges ( ) at each end, which ensure proper positioning of the tube ( ) within the housing ( ). The housing ( ) makes a fluid-tight seal with the flanges ( ) so that the interior of the housing ( ) is isolated from the ambient surroundings. The flanges ( ) are non-circular and fit in complementary recesses ( ), ( ) in the housing ( ) so that, when installed, the tube ( ) is not twisted between its ends.

Peristaltic pumps

A peristaltic pump includes a rotor (21) comprising a hub (211), an actuating part (214) mounted on the hub (211) for operative engagement with a flexible tube (7) of the pump, the actuating part (214) being radially displaceable relatively to the hub (211) and being connected to the hub (211) by an elastic connecting portion; and adjustment means (22) for adjusting the radial position of the actuating part (214) and for maintaining the actuating part (214) in an adjusted position.

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Falmouth, United Kingdom

Andrew John Green