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:
Jul. 19, 2005
Filed:
Nov. 15, 2002
Applicants:
Ronald Gilbert, Liberty Lake, WA (US);
Mark Palmer, Spokane, WA (US);
Inventors:
Ronald Gilbert, Liberty Lake, WA (US);
Mark Palmer, Spokane, WA (US);
Assignee:
Pyrotek, Inc., Spokane, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D007/06 ;
U.S. Cl.
CPC ...
Abstract
An impeller system for use in a molten metal pump, the impeller system including a generally cylindrical outer wall with outlets therein, an impeller lid mounted on the impeller walls, the impeller lid including a plurality of inlets, with the shaft being mounted directly into a base, which is mounted relative to the outer wall. The impeller system has an open interior defined by the outer wall, the lid and the base, and the impeller shaft mounts directly into the base without the need for a collar or attachment to the impeller lid.