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:
May. 20, 2008
Filed:
Apr. 20, 2005
Detlef Eisenkraetzer, Iffeldorf, DE;
Andreas Haug, Penzberg, DE;
Detlef Eisenkraetzer, Iffeldorf, DE;
Andreas Haug, Penzberg, DE;
Hoffmann-La Roche Inc., Nutley, NJ (US);
Abstract
An agitator for use on an agitator shaft having an axis of rotation. The agitator has a blade mount configured and dimensioned to receive the agitator shaft and being further configured and dimensioned so as to hold a plurality of agitator blades radially with respect to the axis of rotation. Each agitator blade has a plurality of segments, including an upper segment relative to the axis of rotation and a lower segment relative to the axis of rotation. The segments are inclined at an acute angle relative to the axis of rotation in the direction of rotation, wherein the acute angle changes continuously or stepwise from about 25° at the upper segment to about 65° at the lower segment.