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:
Apr. 02, 2002
Filed:
Feb. 08, 2000
David Vellut, Craponne, FR;
Jacques Jose, Villette de Vienne, FR;
Emmanuel Behar, Jouy le Moutier, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
An ebulliometric device measures with high precision a physical parameter of a liquid substance. It includes an ebulliometer having an elongate vessel into which a liquid substance is fed, a sensor for measuring the boiling-point temperature arranged in the upper part of the vessel, a pump allowing to spray substance in the form of liquid and vapor in the upper part of the vessel, and an assembly external to the vessel for condensing the vapor allowing to recycle the condensed vapor to the base of the vessel and at least one thermostat-controlled enclosure. The device also includes a first finger tube extending in the elongate vessel from an upper part of the same for protecting the sensor, an element in close contact with the first finger tube for increasing a time of contact of liquid and vapor with the finger tube, a second tube delimiting a containment space around the first tube and the element, this space communicating with the pump through a duct, and gas injecting means at an lower part of the elongate vessel for controlling the boiling temperature.