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:
Aug. 14, 2001
Filed:
Oct. 15, 1999
Applicant:
Inventors:
Neal L. Keefer, Portland, OR (US);
Kenneth A. Watson, Vancouver, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 5/502 ;
U.S. Cl.
CPC ...
F02B 5/502 ;
Abstract
A draw and return tube fuel assembly having a draw tube and a return tube welded to a flange. The tubes may be extruded in a variety of diameter sizes such that the assembly can be manufactured to connect to any size draw and return fuel line connectors. The method of manufacturing the draw and return tube assembly with extruded tubing eliminates the steps of heating, flaring and cleaning and thereby eliminates the corresponding hazardous materials created as a byproduct of these eliminated steps.