Chemistry: physical processes
Patent
1979-11-13
1981-10-20
Jenkins, Robert W.
Chemistry: physical processes
211 74, 366214, B04B 1500
Patent
active
042956013
ABSTRACT:
A centrifuge tube holder which not only provides support for the tubes in a vertical orientation when placed on a workbench, but also horizontal and radial support when the tubes are placed in a centrifuge rotor. The tube holder has at least two sections which are pivotally connected to allow for upright or vertical orientation of the tubes when placed on a workbench. The two sections can be pivotally oriented with respect to each other to place the tubes horizontally in a centrifuge rotor at different radial angles with respect to each other with reference to the spin axis of the rotor. The holder also incorporates means for securely holding the tubes within the holder while they are being transported, so that the holder can be inverted without the escape of the tubes. On the other hand, the biasing or securing means for the tubes in the holder is eliminated when the holder is at rest on the workbench to permit convenient and easy insertion or removal of the centrifuge tubes. The tube holders act in conjunction with a spacer within the rotor bowl to not only provide the proper placement of the centrifuge tube holders during centrifugation, but also permit extraction of the holders from the rotor bowl to remove essentially all obstructions within the rotor bowl for easier cleaning after a centrifugation run.
REFERENCES:
patent: 3454217 (1969-07-01), Harbott
patent: 3666171 (1972-05-01), Ellz
patent: 3674198 (1972-07-01), Eberle
patent: 3891140 (1975-06-01), Ayres
patent: 4135660 (1979-01-01), Conn
Beckman Instruments Inc.
Jenkins Robert W.
May William H.
Mehlhoff F. L.
Steinmeyer R. J.
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