Patent ID: 8871062

Claim:
A fluid flow member, comprising A. a closed first end; B. a second end having a generally cylindrical cross section, wherein a central longitudinal axis is defined by a line extending from a center point of the closed first end to a point at the center of the generally cylindrical cross section of the second end, and wherein the second end is open, thus forming an inner chamber accessible via the second end; C. a variably curved outer flow surface extending from the closed first end to the second end, the surface having two fluid flow regions, namely, i. a fluid dispersal region extending from the first end to a point between the first end and second end, the fluid dispersal region being defined by a surface curvature that produces an increasing surface area as the region extends from the first end toward the second end along the central longitudinal axis; and, ii. an active region extending from a point below the fluid dispersal region, the active region having an increasing surface area as the region extends along the central longitudinal axis in a direction away from the fluid dispersal region and toward the second end, and wherein the rate of increase of the surface area in the active region is less than the rate of increase of the surface area in the fluid dispersal region.