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:
Sep. 28, 2005
Uwe Stueven, Bad Soden, DE;
Leo Van Miert, Antwerp, BE;
Dominicus Van Esbroeck, Antwerpen, NL;
Oskar Stephan, Hockenheim, DE;
Annemarie Hillebrecht, Mannheim, DE;
Huanmin Wei, Frankenthal, DE;
Uwe Stueven, Bad Soden, DE;
Leo Van Miert, Antwerp, BE;
Dominicus van Esbroeck, Antwerpen, NL;
Oskar Stephan, Hockenheim, DE;
Annemarie Hillebrecht, Mannheim, DE;
Huanmin Wei, Frankenthal, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to a mixing kneader comprising at least two shafts () configured as hollow shafts, on whose surfaces kneading bars () are disposed on elements (). The construction of the shafts is selected in such a way that the resonant frequencies of the shafts have a separation of at least 5% from the excitation frequencies. At least one of the shafts is preferably flowed through by a temperature-control medium, the inlet being disposed on one side and the outlet on the other side of the shaft. The mixing kneader preferably comprises at least one orifice above the shafts which is configured as a dome, the dome being closed by a displacer (). In addition, at least one orifice for product withdrawal is provided, whose orifice cross section is adjustable during operation.