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. 30, 1989
Filed:
Oct. 26, 1987
Applicant:
Inventors:
Clifford C Segerstrom, Houston, TX (US);
Jacob H Stil, The Hague, NL;
Pieter J Schuurman, The Hague, NL;
Gunter K Eckstein, Hamburg, DE;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10J / ;
U.S. Cl.
CPC ...
48210 ; 48DI / ;
Abstract
A method and apparatus for determining blockage of a coal gasification slag tap by observing changes in the pressure differential across a diaphragm seal located within an annulus formed by a pressurized vessel and a gasifier contained therewithin.