Patent ID: 8905731
Filing Date: 2014-12-09
Classification: F04B

Abstract:
1. A linear peristaltic pump for pumping a fluid through a flexible tube, comprising: a central member mounted for rotation about a central shaft; a plurality of planetary gears mounted by a plurality of planetary gear shafts to the central member respectively; a ring gear in a mesh engagement with each of the plurality of planetary gears; a roller located on each of the planetary gears offset from the planetary gear shafts respectively; a generally flat compression surface located relative to the central axis for enabling the flexible tube to be inserted between the generally flat compression surface and at least one of the plurality of rollers; and a motor for effecting relative rotation between the central member and the ring gear for enabling the plurality of rollers to serially collapse the flexible tube and to move in a substantially linear motion along the generally flat compression surface for pumping the fluid through the flexible tube.