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. 01, 1986
Filed:
Feb. 03, 1984
Dirk Kanbier, The Hague, NL;
Alfred L Van Kleef, The Hague, NL;
Shell Oil Company, Houston, TX (US);
Abstract
An apparatus for fractional distillation under vacuum, comprising an evacuable vessel enclosing a first zone for liquid to be distilled, a second zone for distillate and a third zone for residue. The vessel is provided with a plurality of vertical tubular elements having side walls forming evaporator surfaces and being provided with inlet means at their upper ends for directing liquid to be distilled from the first zone towards the evaporator surface. Each hollow element surrounds at least partly a vertical cooling surface to cause condensation of vaporized liquid to form distillate, each hollow element being further provided with means for separately withdrawing distillate and residue from its interior into the second zone and the third zone, respectively. The vessel preferably consists of detachably interconnected wall portions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile