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:
Aug. 14, 2007
Filed:
Oct. 14, 2003
Hartmut Nikolai, Meckenheim, DE;
Ernst-jürgen Grittmann, Ludwigshafen, DE;
Hartmut Nikolai, Meckenheim, DE;
Ernst-Jürgen Grittmann, Ludwigshafen, DE;
BASF Aktiengesellschaft, , DE;
Abstract
A device comprising a shaft, a front ring connected to this shaft, an end ring connected to the shaft at a distance A from the front ring, and a loose mixing ring, which is freely rotatable and located between the front ring and the end ring. The mixing ring has a first region in which its inside diameter is large enough for it to be able to overlap with a region of smaller diameter of the front ring has an adjoining region in which the mixing ring has on its inner side at least two channels () which run axially parallel, at an angle in relation to the axis of the shaft or helically thereto, and also an adjoining third region in which its inside diameter is large enough for it to be able to overlap with a region of smaller diameter of the end ring and the mixing ring is so long that, in its respective end positions, the other of the two rings respectively is partially overlapped by the mixing ring. The mixing ring channels are offset in relation to each other.