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:
Oct. 09, 2018
Filed:
Oct. 25, 2016
Applicant:
A. O. Smith Corporation, Milwaukee, WI (US);
Inventors:
John Robert Lowdermilk, Bristol, TN (US);
Donald Irvin Pridemore, Jr., Jonesborough, TN (US);
Bradley S. Yon, Kingsport, TN (US);
Steven Lawrence Tilson, Erwin, TN (US);
Assignee:
A. O. Smith Corporation, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F22D 7/04 (2006.01); F24H 9/12 (2006.01);
U.S. Cl.
CPC ...
F24H 9/124 (2013.01);
Abstract
A water heater including a thermal break in the form of an air pocket that moves into an air trap segment of the cold water pipe to reduce heat loss during standby. The air pocket is pushed back into the tank by incoming cold water during a hot water and reforms at the top of the tank. During standby, the air pocket moves into the air trap via an anti-siphon hole communicating with the cold water inlet. The anti-siphon hole can be, for example, in the top of the dip tube.