Patent ID: 6851938
Filing Date: 2005-02-08
Classification: F04B,Y10S,Y10T

Abstract:
1. A magnetic pumping system, comprising: a pump, capable of urging a fluid therefrom during a forward stroke and a return stroke, having a piston disposed within a cylinder defined by a pump body, and a driver disposed external to the pump body, wherein the driver is capable of moving the piston by a magnetic field interaction between the driver and the piston; and a check valve bridge, spaced away from the pump and in fluid communication with the cylinder, capable of allowing ingress and egress of the fluid into and out of the cylinder in response to a movement by the piston, wherein the piston comprises: a first piston plug; a second piston plug; a piston magnet disposed between the first piston plug and the second piston plug; a retaining member for housing the piston magnet and coupling the first piston plug and the second piston plug; and at least one piston seal disposed external to the retaining member for inhibiting a flow of fluid between the piston and the cylinder wall.