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:
Jan. 03, 2012
Filed:
Apr. 23, 2008
Toshihiro Kobayashi, Nagoya, JP;
Hiroshi Oda, Nagoya, JP;
Toshihiro Kobayashi, Nagoya, JP;
Hiroshi Oda, Nagoya, JP;
Paloma Indusrties, Limited, Nagoya, JP;
Abstract
The object is to provide a water heater capable of efficiently transmitting radiation heat of a burner to hot water in a hot water storage chamber with improved thermal efficiency. In the water heater, a second restriction part having a shallower depth than a first restriction part is arranged along a peripheral edge of a lower mirror plate of a hot water storage chamber with a protrusion part protruding in a ring shape toward the center side of the lower mirror plate. The protrusion part is further arranged between the first restriction part and the second restriction part, and a burner is positioned so that the burner combustion surface faces the protrusion part.