Patent · US Active

Impeller for dispersing gas into molten metal

US8178036B2 · kind B2 · utility

3Cited by

7References

20Claims

0Family size

Assignee

PYROTEK, INC. · US

Inventors

David Neff · Euclid, US
Richard S. Henderson · Solon, US
Lennard Lutes · Akron, US
James Grayson · Toronto, CA

Key dates

Filing date	Jul 13, 2007
Grant date	May 15, 2012
Priority date	—
Expiry date	Apr 13, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27D2027/002
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An impeller for dispersing gas into molten metal includes a rectangular prism body having upper and lower faces and four side walls. The body has an opening extending through the upper and lower faces and defines a hub around the opening on the upper face. The impeller further includes a plurality of elongate grooves extending radially outwardly from the hub.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.