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:
Mar. 04, 2008
Filed:
Oct. 29, 2003
Hervé Cleris, Curcy sur Orne, FR;
Olivier Lara, Jaunay-Clan, FR;
Hervé Cleris, Curcy sur Orne, FR;
Olivier Lara, Jaunay-Clan, FR;
I.S.L., Verson, FR;
Abstract
The invention concerns a method for determining the vanishing temperature of petroleum product crystals, characterized in that it comprises the following steps: introducing the sample to be analyzed in a measuring cell (), arranged in a cryostatic chamber (); connecting a laser emitter () and an associated optical receiver () to pass an optical beam through the sample to be analyzed and recording the light intensity received by the receiver (); gradually lowering the temperature of the cryostatic chamber () then increasing it again gradually while recording the curve representing the variations in the light intensity received by the receiver () based on the temperature; and determining the vanishing temperature of the crystals from said curve.