Fermentation vessel closure

Details Fermentation vessel closure Fermentation vessel closure

1989-12-29

1992-05-26

Lacey, David L.

Chemistry: molecular biology and microbiology

Apparatus

Including measuring or testing

215322, 220336, 220345, 435296, 435298, C12M 6100

Patent

active

051167581

ABSTRACT:
A closure device for fermentation test tubes or flasks comprises a cylindrical cap which fits snugly over the mouth and neck of a test tube or flask to maintain the sterility of the tube or flask contents while permitting the free flow of gases into and out of the tube or flask. An aperture in the end cap of the closure device permits free access to the tube or flask contents for sampling and is closed by a moveable aperture cover.

REFERENCES:
patent: 3352445 (1966-07-01), Cochin
patent: 3527373 (1970-09-01), Giraudet et al.
patent: 3792803 (1974-02-01), Kessler

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