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. 27, 1990
Filed:
Jan. 09, 1989
Marc W Akkala, New Berlin, WI (US);
Dennis R Hughes, Germantown, WI (US);
A. O. Smith Corporation, Milwaukee, WI (US);
Abstract
A water heater comprising a tank to contain water to be heated and having a downwardly convex lower head. A flue extends upwardly through the tank and the lower end of the flue projects downwardly beyond the lower head. A burner having a substantially smaller cross-sectional area than the flue is located adjacent the lower end of the flue, and a locator interconnects the projecting lower end of the flue with the burner for precisely positioning the burner with relation to the flue. A layer of insulation is disposed on the outer surface of the convex lower head and extends radially inward to the projecting end of the flue.