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.:

US 7661420 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 16, 2010

Filed:

Sep. 28, 2006
Applicant:

Kenji Okayasu, Tokyo, JP;

Inventor:

Kenji Okayasu, Tokyo, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24H 9/00 (2006.01); F24H 1/00 (2006.01); F23D 14/12 (2006.01); F23D 14/14 (2006.01); F23D 14/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A portable heat transfer apparatus comprises a mixture forming/supply device for producing a mixture of fuel gas and air, a heating unit including a heat collection casing, and a burner installed in the casing and formed with a combustion chamber having a flat surface. The burner includes a large number of holes formed on an upstream side thereof to extend up to the flat surface to allow the mixture injected into the chamber therethrough to combust in the chamber, and a porous solid radiant-heat conversion component to partly convert heat energy of exhaust gas from the combustion in the chamber into radiant heat energy. The conversion component defines at least a surface region of the chamber located opposite to a flame front produced close to the flat surface. The apparatus includes a heat-driven pump joined to the casing and receiving heat generated by the combustion, through the heat collection casing.


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