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:
May. 09, 2017
Filed:
Sep. 13, 2013
Applicant:
Thetford Corporation, Ann Arbor, MI (US);
Inventor:
Jürgen Keller, Siegen-Weidenau, DE;
Assignee:
THETFORD CORPORATION, Ann Arbor, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
C09K 15/18 (2006.01); C09K 15/02 (2006.01); C09K 15/04 (2006.01); C09K 5/04 (2006.01); F25B 15/04 (2006.01); F25B 15/10 (2006.01); F25B 45/00 (2006.01);
U.S. Cl.
CPC ...
C09K 15/18 (2013.01); C09K 5/047 (2013.01); C09K 15/02 (2013.01); F25B 15/04 (2013.01); F25B 15/10 (2013.01); F25B 45/00 (2013.01); Y02B 30/62 (2013.01); Y02P 20/124 (2015.11);
Abstract
Working material for absorption machines using ammonia (NH) or methylamine (CHNH) or dimethylamine ((CH)NH) as the working agent and using water (HO) as the solvent, to which a small amount of basic water glass is added, i.e., a certain mixture of water glass and bases, which does not contain any chromium salts as corrosion inhibitors.