Patent ID: 11939993
Assignee: PYROTEK, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A molten metal pump comprising an elongated straight-walled non-parabolic chamber having a base end and a top end, a shaft disposed within said chamber and an impeller rotatable by said shaft, said impeller disposed proximate said base end, said chamber having an intermediate width diameter at least 1.1 times a diameter of the impeller, said base end including an inlet located on a lower most wall of the chamber and said top end including an outlet, wherein said inlet is vertically aligned with a longitudinal axis of said shaft, wherein a distance between said inlet and said outlet is at least three times a height of said impeller, and wherein a bearing surface is provided between a radial edge of the impeller and the inlet.