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:
Nov. 29, 1977
Filed:
Mar. 18, 1976
Applicant:
Inventors:
Herbert Grebe, Bremen, DT;
Wolfgang Hartwig, Bremen, DT;
Johann Kohler, Barrien, DT;
Rudolf Rothe, Bremen, DT;
Karl-Friedrich Schroder, Bremen-Lesum, DT;
Assignee:
HAG Aktiengesellschaft, Bremen, DT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
23284 ; 23285 ; 2328 / ; 2326 / ; 214 / ;
Abstract
A bottom closure for a chemical reactor having a cylinder extension whose attachment opening is closed by a closing part with said closing part bearing upon the conical counter-surface of the attachment opening and protruding a sufficient distance into the interior of the reactor that solid bridges or arches formed from solid material within the reactor are destroyed during the opening of the closure.