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:
Sep. 15, 1998
Filed:
Aug. 19, 1997
Robert R Brown, Markle, IN (US);
Waterfurnace International, Inc., Fort Wayne, IN (US);
Abstract
A hot water heat pump is coupled to a primary liquid heat source, typically an earth coupled closed loop system, and a hot water retention tank. The hot water heat pump extracts heat from the liquid heat source and gives off heat to water stored in the hot water retention tank. A coupling device is connected to the liquid heat source conduit for diverting liquid heat source flow to the hot water heat pump. A dedicated liquid heat source pump maintains liquid heat source flow through a first heat exchanger in the domestic hot water heat pump independent of primary heat, source operation. Refrigerant flows through both the first heat exchanger and a second heat exchanger. Water stored in the retention tank is circulated by the dedicated hot water circulating pump through the second heat exchanger thereby removing heat from the refrigerant. The stored water is typically used for domestic hot water supply.