Patent · US Expired

Centrifuge having marker elements

US5814279A · kind A · utility

16Cited by

12References

7Claims

0Family size

Assignee

Fresenius AG · DE

Inventors

Wolfgang Biesel · Ottweiler, DE
Stefan Kreber · Riegelsberg, DE
Henning Brass · Homburg, DE
Friedrich Witthaus · Namborn, DE
Artur Meisberger · Sankt Wendel, DE

Key dates

Filing date	Feb 2, 1996
Grant date	Sep 29, 1998
Priority date	—
Expiry date	Feb 2, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/25375
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A centrifuge has a drive unit, a separation chamber which can be inserted into the drive unit, and a scanning device for recognizing the position of the separation chamber which is rotated by the drive unit. The separation chamber is constructed as a disposable chamber and is provided with a marker element which is arranged in a scanning region extending annularly around the rotation axis of the chamber. The position of a phase boundary window is detected by sensing the position of the marker with a phase boundary detector portion of the scanning device whereby the chamber can be inserted into the drive unit in any position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.