The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2012
Filed:
Jul. 13, 2007
Applicants:
David Neff, Willoughby, OH (US);
Richard S. Henderson, Solon, OH (US);
Lennard D. Lutes, Copley, OH (US);
James Grayson, Gurdon, AR (US);
Inventors:
David Neff, Willoughby, OH (US);
Richard S. Henderson, Solon, OH (US);
Lennard D. Lutes, Copley, OH (US);
James Grayson, Gurdon, AR (US);
Assignee:
Pyrotek, Inc., Spokane, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C 7/00 (2006.01);
U.S. Cl.
CPC ...
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.