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:
Dec. 06, 2011
Filed:
Jun. 06, 2008
Applicant:
Franz-josef Irnich, Hürthgenwald, DE;
Inventor:
Franz-Josef Irnich, Hürthgenwald, DE;
Assignee:
Z & J Technologies GmbH, Duren, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 43/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus is provided for closing or opening an opening, especially a bottom opening of a material hopper arranged above the mouth of a blast furnace having a drivable flap plate, which is movable into an open position leaving the opening clear and into a closed position blocking off the opening and vice-versa. The flap plate carries out, in the region of the opening, a linear movement substantially perpendicular to the plane of the opening and, distal to the opening, a pivoting movement.