Vented microscale centrifuge tube

Details Vented microscale centrifuge tube Vented microscale centrifuge tube

1990-03-02

1991-08-13

Marcus, Stephen

Receptacles

Closures

Vent at closure, closure support juncture

215355, 220DIG27, 422102, B65D 5116, B01L 300

Patent

active

050389580

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.

REFERENCES:
patent: 600064 (1898-03-01), Chaplen et al.
patent: 2367908 (1945-01-01), Walsh et al.
patent: 4065018 (1977-12-01), Megowen et al.
patent: 4192429 (1980-03-01), Yerman
patent: 4227620 (1980-10-01), Conway
patent: 4483616 (1984-11-01), Liston et al.
patent: 4576595 (1986-03-01), Aas et al.
patent: 4758409 (1988-07-01), Uffenheimer
patent: 4785953 (1988-03-01), Buchholz et al.

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