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:
Nov. 06, 2018
Filed:
Feb. 06, 2015
Wilson NG, Sydney, AU;
Hiroshi Oda, Nagoya, JP;
Wilson Ng, Sydney, AU;
Hiroshi Oda, Nagoya, JP;
Other;
Abstract
The present invention provides an outdoor water heater () having a lower chamber () located in a cabinet () which substantially sealingly encloses a naturally aspirated or natural draught burner, a combustion chamber, a heat exchanger (), a flue () for conveying combustion gases from the burner (), the flue () extending away from the heat exchanger () and passing through a middle chamber () located above the lower chamber (), the flue () not opening into the middle chamber () and opening into an upper chamber () which has two opposed openings (), the upper chamber () and middle chamber () being substantially sealed with respect to each other to prevent combustion gas flow between the middle chamber () and the upper chamber (), and wherein the middle chamber () has divider formations () separating one side of the middle chamber () from an opposed side of the middle chamber (), whereby the divider formations () direct air flowing from one side of the middle chamber () to pass downwardly into the lower chamber () on one side then upwardly out of the lower chamber () to exit the middle chamber () on the other or opposite side.