Vented microscale centrifuge tube
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United States of America Patent
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Aug 13, 1991
Grant Date -
N/A
app pub date -
Mar 2, 1990
filing date -
Mar 2, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sealable vented microscale centrifuge tube for centrifuging samples at substantially atmospheric pressure, thus avoiding the danger of backpressure in the stoppered centrifuge tube which may expel the cap or shatter the tube during centrifugation. The device of the invention includes a container having a wall defining a cavity capable of holding a sample; a flange surrounding the cavity opening and possessing a hole; and a shell which surrounds the flange and which extends above and below its plane, and is attached to the flange rim, thus supporting the container within the shell. It additionally includes a removable cap which seals the cavity of the container. When the cavity of the container is sealed by the removable cap, air which would otherwise be compressed in the container is vented through the hole through the flange of the container and into the space between the container wall and the supporting shell.
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