Apparatus for centrifugal separation of test samples

US4052165A · kind A · utility

Assignee

• Compur-Electronic GmbH · DE

Inventors

• Otto Wienchol · Pullach, DE
• Franz Muhlbock · Munich, DE

Key dates

• Filing date: Oct 14, 1976
• Grant date: Oct 4, 1977
• Expiry date: Oct 14, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04B2007/025
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A rotor, adapted for rotation at high speeds, has symmetrically arranged radial channels for receiving tubular containers of material to be evaluated, such for example as samples of blood. The outer end of each radially extending container is placed against a resilient abutment at the rim of the rotor, and its inner end is placed against a clamping collar arranged centrally of the rotor and having limited movement in the direction of the axis of rotation. In the initial loading position, the tubular containers are inclined upwardly from the rim toward the center of the rotor. They are clamped firmly into position on the rotor by axial movement of the clamping member which carries the inner ends of the containers downwardly, to force the containers slightly radially outwardly, compressing the resilient abutments at their outer ends. The invention relates to details of construction of the axially movable clamping member, which has a spring tending to move it to unclamping or loading position, and a latch to hold it in clamped position, against the force of the spring.