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. 24, 2012
Filed:
Aug. 25, 2008
Hongfei MA, Nanjing, CN;
Zhihua Zhang, Nanjing, CN;
Lei Cao, Nanjing, CN;
Hyungsik Lee, Mequon, WI (US);
Gu Qinghai, Nanjing, CN;
Hongfei Ma, Nanjing, CN;
Zhihua Zhang, Nanjing, CN;
Lei Cao, Nanjing, CN;
Hyungsik Lee, Mequon, WI (US);
Gu Qinghai, Nanjing, CN;
Aos Holding Company, Wilmington, DE (US);
Abstract
A storage-type water heater includes a tank enclosing a volume of water, the tank having an upper portion and a lower portion, a chamber adjacent the lower portion of the tank and adapted to at least partially enclose a source of a heated fluid, and a helical tube heat exchanger at least partially enclosed within the tank and fluidly connected to the chamber. The helical tube directs the heated fluid from the lower portion to the upper portion of the tank and promotes heat exchange between the water in the tank and the heated fluid flowing therethrough.