Mixing system

US9045722B2 · kind B2 · utility

Assignee

• Sartorius Stedim Biotech GmbH · DE

Inventors

• Oscar-Werner Reif · Hannover, DE
• Gerhard Greller · Oettingen, DE
• Juergen Van Den Boogaard · Dransfeld, DE
• Sven Luehmann · Northeim, DE
• Marco Lohrengel · Hattorf am Harz, DE

Key dates

• Filing date: May 7, 2009
• Grant date: Jun 2, 2015
• Expiry date: Jun 9, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01F2101/44
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A mixing system has a container with flexible walls (1), a fluid-tight drive space (6) and a mixing device. The container with flexible walls (1) has at least one head plate (5). The fluid-tight drive space (6) is outside of the container interior (2), and is enclosed by the head plate (5) and a cap (7) attached to the head plate (5). The mixing device has a stirrer shaft (3), onto which stirrer elements (4, 4′) are attached. The stirrer shaft (3) is guided from the container interior (2) through an opening in the head plate (5) and the section of the stirrer shaft (3) in the drive space (6) is guided by bearings (9, 10). A seal (8) is fit into the opening of the head plate, and encloses the stirrer shaft (3) and seals the container interior (2) from the drive space (6).