Chemistry: physical processes – Physical processes – Crystallization
Patent
1976-10-14
1977-10-04
Serwin, R.E.
Chemistry: physical processes
Physical processes
Crystallization
233 26, G01N 3316, B04B 500
Patent
active
040521648
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 filled with the sample to be evaluated is placed against a resilient abutment at the rim of the rotor, and the inner end of the container is placed in a receiving groove in a clamping member having limited axial movement relative to the axis of rotation of the rotor. The length of each sample container is such that it fits fairly snugly between the abutment and the clamping member when at a slight inclination to the plane of rotation of the rotor (that is, a plane perpendicular to the axis of rotation) when the clamping member is in a loading position. When the clamping member is then moved axially to its locking position, the sample container is swung through the plane of rotation to a slight angle on the opposite side thereof from the loading position, meanwhile compressing the resilient abutment at the outer end of the container by a toggle action. This holds the container firmly and safely for rotation at high speed, to separate the components of the contents of the container by centrifugal action. The results of the separation may be read on a numerical scale marked on the rotor alongside each container.
REFERENCES:
patent: 2507309 (1950-05-01), Larsson
patent: 3679367 (1972-07-01), Negersmith et al.
patent: 3720368 (1973-03-01), Allen
patent: 3748101 (1973-07-01), Jones et al.
patent: 3891140 (1975-06-01), Ayres
Compur-Electronic Gesellschaft mit beschrankter Haftung
Serwin R.E.
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