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:
Jun. 02, 1992
Filed:
May. 30, 1990
Applicant:
Inventors:
Kenneth Lewtas, Oxfordshire, GB;
Edwin W Lehmann, Faringdon, GB;
John N Mears, Oxfordshire, GB;
Brian H Wiggins, Abingdon, GB;
Leslie G Jones, Abingdon, GB;
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 6 / ; 374 170 ;
Abstract
A test device for assessing low temperature performance of a wax-containing fuel which compriss: a vessel for containing a fuel to be assessed, having cooling and heating elements, for cooling and heating the fuel in the vessel and a filter element wherein the fuel is caused to pass through the filter of the filter element and the cooling and heating elements are so arranged that a stable convection current is set up in the fuel and the filter is so positioned that it receives wax settling from the fuel.