Patent ID: 6120272
Filing Date: 2000-09-19
Classification: F01C

Abstract:
A pump, comprising:(A) a housing, having a fluid inlet and a fluid outlet, defining an upper cavity and a lower cavity;(B) a drive axle carried by the housing;(C) a first elliptical driver, carried by the drive axle within the upper cavity of the housing;(D) a first rocker, carried within the lower cavity of the housing, having left and right arms, and having an elliptical driver contact surface in contact with a portion of a peripheral edge of the first elliptical driver;(E) a second elliptical driver, carried by the drive axle within the upper cavity of the housing 90 degrees out-of-phase with the first elliptical driver; and(F) a second rocker, carried within the lower cavity of the housing, having left and right arms, and having an elliptical driver contact surface in contact with a portion of a peripheral edge of the second elliptical driver.