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:
Mar. 28, 2006
Filed:
Jun. 18, 2003
Stan Smits, Weilheim, DE;
Gerd Gumienny, Landshut, DE;
Lutz Riefenstein, Weilheim, DE;
Convotherm Elektrogeräte GmbH, Eglfing, DE;
Abstract
A heat exchanger device for a cooking appliance includes a burner arranged in a combustion chamber. The burner is connected by a feeding pipe to a mixing device which prepares a gas/air mixture necessary for the combustion and feeds it to the burner. The mixing device is connected to the burner in a gastight manner additional air is prevented from flowing in. The combustion chamber is formed by an enlargement of a heat exchanger pipe which, starting from the combustion chamber, spirally surrounds the fan wheel which provides forced circulation of the treatment medium. The heat exchanger pipe is also wound around the combustion chamber.