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:
Oct. 18, 1988
Filed:
Oct. 07, 1986
Applicant:
Inventors:
Pieter J Schuurman, The Hague, NL;
Franciscus J Konings, The Hague, NL;
Heinz Voetter, The Hague, NL;
Ian Poll, The Hague, NL;
Assignee:
Shell Internationale Research Maatschappij B.V., The Hague, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220 721 ; 220 71 ;
Abstract
Container suitable for preheating, retorting and cooling of shale under pressure comprising a vessel (2) and a primary stiffener system comprising side stiffeners (16, 17), a top stiffener (20) and a stiffener connecting system (21), wherein the primary stiffener system (11) prevents excess bending of the walls (3, 4, 7, 8) of the vessel (2), and wherein, when heated, the stiffener connecting system (21) forces the primary stiffener system (11) to give way so as to allow some expansion of the walls of the vessel (2).