Patent ID: 9523359
Filing Date: 2016-12-20
CPC Classification: F04B

Claim Text:
1. A rotary peristaltic pump, comprising: a pump frame; a platen operatively associated with the pump frame, including a periodical plurality of N staggered curved surfaces around the inner circumference of the platen; at least one transfer tube having a wall thickness, an inside diameter, an outside diameter, an input end, and an output end, the at least one transfer tube operatively coupled to the inner circumference of the platen; a drive shaft mounted to the pump frame; a platen assembly rotatably secured to the drive shaft, configured to elliptically rotate at an eccentric displacement from the drive shaft axis; a plurality of N−1 rollers rollably secured to the platen assembly, each roller mounted to an axle along its longitudinal axis, each axle mounted parallel to the longitudinal axis of the platen assembly, the plurality of rollers configured to sequentially and radially interact with the staggered curved surfaces and peristaltically occlude the at least one transfer tube between the rollers and the staggered curved surfaces.