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Publication numberUSD657443 S1
Publication typeGrant
Application numberUS 29/312,348
Publication dateApr 10, 2012
Filing dateOct 14, 2008
Priority dateApr 14, 2008
Publication number29312348, 312348, US D657443 S1, US D657443S1, US-S1-D657443, USD657443 S1, USD657443S1
InventorsTomasz Siemieńczuk
Original AssigneeSiemienczuk Tomasz
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Combustion tube
US D657443 S1
Abstract  available in
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  1. The ornamental design for a combustion tube, as shown and described.

FIG. 1 is a rear elevational view of a combustion tube;

FIG. 2 is a right side elevational view thereof; a left side elevational view is identical as the right side elevational view;

FIG. 3 is a front elevational view thereof;

FIG. 4 is an enlarged detail taken from FIG. 3 thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a rear perspective view thereof.

Non-Patent Citations
1G.E. Hewitt, Heat exchanger design Handbook 1998, Chapter 3, Subtitle 3.1.2, published by Bepell House Inc. New York.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
USD776801 *Dec 24, 2014Jan 17, 2017Kobe Steel, LtdHeat exchanger tube
U.S. ClassificationD23/418