Molten metal pump
AssigneeThe Carborundum Company
InventorsRonald E. Gilbert, George S. Mordue
Life of this patent
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Abstract
An impeller for a molten metal pump having a cup-shaped body comprised of a sidewall and a closed end portion that define a cavity. A plurality of shear vanes extend radially from the outer surface of the impeller, particularly from the end portion of the impeller. The impeller also has a plurality of openings extending laterally through its sidewall, wherein the openings have center lines disposed parallel to lines extending radially from the center of the cavity. The openings may be equidistantly spaced about the periphery of the sidewall. The impeller may also be comprised of a bearing member forming a portion of the sidewall.
Claims5
An impeller for a molten metal pump, comprising:
- a cup-shaped body having a side wall and a closed end portion that define a cavity;
- a plurality of radially extending shear vanes disposed on an outer surface of the impeller the vanes being connected to the end portion;
- and
- a plurality of openings extending laterally through the side wall, the openings having centerlines disposed parallel to lines extending radially from the center of the cavity, the centerlines of the openings being displaced from the radially extending lines.
Dependencies are inferred from the claim text.