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. 14, 2015
Filed:
Dec. 21, 2012
Applicant:
William E. Murray, Sugar Land, TX (US);
Inventor:
William E. Murray, Sugar Land, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 1/08 (2006.01); F04D 29/42 (2006.01); F04D 1/06 (2006.01); F04D 13/14 (2006.01);
U.S. Cl.
CPC ...
F04D 1/08 (2013.01); F04D 1/063 (2013.01); F04D 13/14 (2013.01); F04D 29/4293 (2013.01);
Abstract
A fluid pump includes a primary impeller and a secondary impeller disposed on a common drive shaft within a pump housing. The pump housing including a respective diffuser or volute therein for each of the primary impeller and the secondary impeller. A fluid passage is formed within the housing connecting a discharge of the primary impeller to an intake of the secondary impeller. Each of the primary and secondary impellers has a respective outlet port.