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. 28, 2001
Filed:
Jan. 19, 1999
Artur Meisberger, St. Wendel, DE;
Wolfram Weber, Spiesen-Elversberg, DE;
Carlo Lay, Saarwellingen, DE;
Friederich Witthaus, St. Wendel, DE;
Stefan Kreber, Saarbrücken, DE;
Henning Brass, Homburg, DE;
Fresenius AG, Bad Homburg, DE;
Abstract
A centrifuge, especially a flow-through centrifuge free of rotating seals, for centrifuging biological fluids has a stand on which a frame (,) is rotatably mounted. A centrifuge chamber (,) is rotatably mounted on the rotating frame (,) to rotate about the axis of the latter. The centrifuge chamber (,) is driven in the same direction of rotation as the frame (,) but at twice the rotational speed. Coupling elements which are engaged by magnetic forces and are designed in the manner of a clutch disk or a gearwheel are used to transmit the torque to the centrifuge chamber or the rotating frame. Force is transmitted in a non-contact and wear-free manner. No lubrication is necessary, which also reduces the buildup of dust and dirt. In addition, there is little generation of noise.