Variable displacement peristaltic pump
First Claim
Patent Images
1. A variable displacement peristaltic pump, comprising:
- a housing;
a rotor supported in said housing for rotation about the longitudinal axis of said rotor;
rotatable pinch rollers carried by said rotor and arranged in a spoke-like array with the rotational axis of each said pinch roller extending radially of said rotor axis and movable in a plane perpendicular to said rotor axis;
a stator adjustably supported by said housing in adjacent parallelism with the plane of movement of said pinch rollers;
adjustment means for moving said stator relative to said rotor axis along a line perpendicular to said rotor axis; and
resiliently flexible tube means carried by said stator and interposed between said stator and said pinch rollers, said pinch rollers engaging and compressing said tube with a travelling pinch action.
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Abstract
A variable displacement peristaltic pump includes an stator carrying a flexible resilient tube, and a spoke-like array of pinch rollers for cooperation with the flexible tube. The rollers extend radially of the axis of a driven rotor, the stator and tube extending tangent to the axis of rotation of the rotor and being adjustable radially of the rotor axis, thus providing for adjustment and calibration of the pump output.
37 Citations
7 Claims
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1. A variable displacement peristaltic pump, comprising:
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a housing; a rotor supported in said housing for rotation about the longitudinal axis of said rotor; rotatable pinch rollers carried by said rotor and arranged in a spoke-like array with the rotational axis of each said pinch roller extending radially of said rotor axis and movable in a plane perpendicular to said rotor axis; a stator adjustably supported by said housing in adjacent parallelism with the plane of movement of said pinch rollers; adjustment means for moving said stator relative to said rotor axis along a line perpendicular to said rotor axis; and resiliently flexible tube means carried by said stator and interposed between said stator and said pinch rollers, said pinch rollers engaging and compressing said tube with a travelling pinch action. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification