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. 11, 2000
Filed:
Jan. 08, 1998
H Alfred Eberhardt, Marco Island, FL (US);
Other;
Abstract
For use with a fireplace, a heat exchanger mounted across the top portion of the fireplace with the heat exchanger comprising a heat exchanger core with four identical extruded core sections connected together around an inner spin chamber for the passage of combustion gases and surrounded by an outer spin chamber for the passage of combustion gases, with each core section having a center core passageway for the passage of room air and the heating of the room air by the heat from the combustion gases being transferred to the room air through the heat exchanger cores, and tortuous passageways between the core sections from the outer spin chamber to the inner spin chamber to increase the area of contact by the hot combustion gases to the core sections and to increase the dwell time of the combustion gases in the core to increase the amount of heat transferred to the combustion gases to the room air in the core sections.