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:
Apr. 07, 2009
Filed:
Jul. 01, 2004
Penrod Geisinger, Dewey, AZ (US);
Mark C. Johnson, Phoenix, AZ (US);
Jason L. Addink, Phoenix, AZ (US);
Scott D. Klopfenstein, Phoenix, AZ (US);
Gregory E. Young, Chino Valley, AZ (US);
Penrod Geisinger, Dewey, AZ (US);
Mark C. Johnson, Phoenix, AZ (US);
Jason L. Addink, Phoenix, AZ (US);
Scott D. Klopfenstein, Phoenix, AZ (US);
Gregory E. Young, Chino Valley, AZ (US);
Vaporless Manufacturing, Inc., Prescott, AZ (US);
Abstract
An in-line motor and pump assembly is supported at the bottom of a fuel storage tank by a pipe and an internal concentric conduit for housing electrical conductors extending therewithin to the motor. An impeller, coaxial with the rotor of the motor, draws the fuel into an annular passageway surrounding the stator of the motor. Further passageways convey the fuel to an annular passageway defined between the pipe and the conduit for discharge external of the storage tank. A low pressure environment attendant the inflow of the fuel is used to channel fuel for lubrication and cooling purposes to a lower journal bearing and thrust bearing supporting a common shaft for the impeller and the motor. A high pressure environment attendant outflow of fuel is used to channel fuel for lubrication and cooling purposes to a journal bearing supporting the upper end of the shaft.