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Browse Prior Art Database

Centrifuge Tube

IP.com Disclosure Number: IPCOM000045766D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Alter, PC: AUTHOR

Abstract

This centrifuge tube contains a small removable cup which allows fine particles to be centrifuged down into the cup, away from the supernatant liquid, so that remixing of the particles does not occur when the supernatant is removed by use of a pipette.

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Centrifuge Tube

This centrifuge tube contains a small removable cup which allows fine particles to be centrifuged down into the cup, away from the supernatant liquid, so that remixing of the particles does not occur when the supernatant is removed by use of a pipette.

The tube of the figure can be formed of any material, consistent with the properties of the liquid being handled. The tube is about 2 centimeters (cm) in diameter and 9.5 cm long. The main portion 10 of the tube is closed by cap 11 after being filled with a liquid/particle mixture. Portion 10 terminates at a small opening 12 which is 0.3 cm in diameter. Removable cup 13 receives the particles during centrifugation. Ideally, the particles fill cup cavity 14. This cavity is 1 cm deep and 1 cm in diameter. If some supernatant remains in the cup after centrifugation, the cup is removed and the liquid is allowed to evaporate. Prior to removal of the cup, the supernatant in portion 10 is removed by use of a pipette, but the pipette is not inserted into the cup, through opening 12.

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