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. 14, 2003
Filed:
Jan. 31, 2001
Applicant:
Inventors:
Florian B. Mansfeld, Marina del Rey, CA (US);
Zhaoli Sun, Los Angeles, CA (US);
Assignee:
Advanced Mechanical Technology, Inc., Watertown, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
C23C 2/200 ; C23C 2/283 ; C23F 1/104 ; C23F 1/106 ; C09K 5/00 ;
U.S. Cl.
CPC ...
C23C 2/200 ; C23C 2/283 ; C23F 1/104 ; C23F 1/106 ; C09K 5/00 ;
Abstract
Corrosion of steel surfaces in a heat pump is inhibited by adding a rare earth metal salt to the heat pump's ammonia/water working fluid. In preferred embodiments, the rare earth metal salt includes cerium, and the steel surfaces are cerated to enhance the corrosion-inhibiting effects.
Mansfeld, Florian. (2003). Corrosion protection of steel in ammonia/water heat pumps (U.S. Patent No. 6632294). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6632294
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile