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:
Aug. 13, 1991
Filed:
Mar. 17, 1989
R John Hansman, Jr, Cambridge, MA (US);
Adam Dershowitz, New York, NY (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
An optically indicating de-icing solution for surfaces comprising a freezing point depressant liquid and a compound which exhibits a visually observable change as solid phase domains become present in the solution is disclosed. When applied to a surface, particularly the surface(s) of aircraft, the formation of solid phase ice domains in the liquid provides a distinct and visible change in the appearance of the solution. This allows a determination of ice formation upon the aircraft as well as a determination of the effectiveness of the de-icing solution.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile