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. 10, 2016
Filed:
Oct. 30, 2013
Cambridge Viscosity, Inc., Medford, MA (US);
Larry Angelo Spino, Houston, TX (US);
Daniel Alfred Airey, Woburn, MA (US);
David Anthony Malaguti, Stoneham, MA (US);
Herve Philippe Cleris, Curcy sur Orne, FR;
Viachaslau Urvantsau, Fontenay le Marmion, FR;
Cambridge Viscosity, Inc., Medford, MA (US);
Abstract
An apparatus and method is shown for determining the pumpability limit, freeze point and/or pour point of liquids, particularly fuels, at sub-ambient temperatures. A sample is placed in a viscometer which viscometer is rapidly cooled by a chiller. During cooling, after some measurements of temperature and viscosity, further temperatures and viscosity are approximated using the least squares method, which temperature and viscosity are subsequently measured to determine the pumpability limit. Continuation of the method will also give the freeze point and pour point of the sample being tested.