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.

Date of Patent:
Oct. 09, 2018

Filed:

Jun. 26, 2017
Applicant:

Rinnai Corporation, Nagoya-shi, Aichi, JP;

Inventors:

Shigeki Takeuchi, Aichi, JP;

Ryosuke Yuge, Aichi, JP;

Assignee:

RINNAI CORPORATION, Nagoya-Shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24D 3/08 (2006.01); F25D 17/06 (2006.01); G05D 23/13 (2006.01); F24D 3/10 (2006.01); F24D 19/00 (2006.01);
U.S. Cl.
CPC ...
F25D 17/06 (2013.01); F24D 3/1091 (2013.01); F24D 19/0095 (2013.01); G05D 23/132 (2013.01); F24D 2220/0221 (2013.01);
Abstract

Provided is a heat medium circulation device with a simple structure, capable of reducing power consumption in performing an anti-freezing treatment. A first heat medium circuitand a second heat medium circuitare connected via a connectorAn anti-freezing control unitactivates the first pumpwith the second pumpin a stopped state, when preventing the heat medium in the first heat medium circuitfrom freezing.


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