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US 5,921,148 AGranted
Method for stabilizing a centrifuge rotor
AssigneeDade Behring Inc.
InventorGary Wayne Howell
Life of this patent
Estimating the term…
Abstract
A method to dampen vibrations of a centrifuge by restraining vertical movement of a disk rotatably attached to the centrifuge's drive shaft. Damping bearings contact with the disk to restrain movement. Means responsive to the radial displacement of the disk activate the damping bearings beyond a predetermined displacement.
Claims1
A method for accommodating vibrations in a centrifuge, the centrifuge comprising:
- a rotor;
- an upper drive shaft adapted for mounting the rotor;
- a lower drive shaft connected to a source of rotation;
- a coupling for flexibly connecting the upper drive shaft to the lower drive shaft;
- a disk having lower sides and upper sides rotationally attached to the shaft;
- and
- damping bearings positioned against the upper side of the disk;
- the method comprising sensing radial displacement of the disk and positioning the damping bearings against the upper side of the disk whenever the radial displacement exceeds a predetermined value, thereby damping vibrations of the disk.
5 more elements
Dependencies are inferred from the claim text.