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:
Jul. 04, 2017
Filed:
Sep. 10, 2015
Applicants:
Hitachi, Ltd., Tokyo, JP;
Hitachi Appliances, Inc., Tokyo, JP;
Inventors:
Assignee:
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/04 (2006.01); F25B 21/02 (2006.01);
U.S. Cl.
CPC ...
C09K 5/047 (2013.01); F25B 21/02 (2013.01);
Abstract
Provided is a working medium of the present invention for absorption refrigerators is a mixture that is to contact a carbon steel or a copper alloy that is a structural material of any one of the absorption refrigerators, and includes water and 1,4-dioxane, and further includes a corrosion inhibitor. The corrosion inhibitor includes one or more selected from the group consisting of respective hydroxides of any alkali metal and any alkaline earth metal, and respective oxoates. Thus, corrosion of the structural material of the absorption refrigerator can be restrained.