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. 20, 1990
Filed:
Apr. 03, 1989
Applicant:
Inventor:
Heinz H Rieger, Toronto, Ontario, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24B / ;
U.S. Cl.
CPC ...
126531 ; 126 / ; 126521 ; 126527 ;
Abstract
The fireplace has a coaxial vent directly venting the exhaust gas through its top. The fresh air is directed through an outer jacket of the coaxial vent to a chamber located between the firebox and the rear panel and enters into the lower portion of the firebox while the exhaust air is conducted through the inner coaxial duct, located inside the fresh air duct, to be released to the outdoor. Residual heat in the exhaust gas is inherently recycled by the fresh air being drawn into the fireplace to enhance combustion and to increase the efficiency for heating purposes.