Chemistry: molecular biology and microbiology – Apparatus – Bioreactor
Patent
1989-11-27
1990-07-31
Dority, Carroll B.
Chemistry: molecular biology and microbiology
Apparatus
Bioreactor
435301, C12M 300
Patent
active
049450611
ABSTRACT:
A Petri dish in which the flat bottom is provided with a plurality of preferably radial ribs is disclosed. The ribs do not project more than about 0.050 inches above the upper surface of the bottom, and preferably not more than about 0.030 inches. The thickness of the bottom portion other than at the ribs is not greater than about 0.030 inches, and preferably not greater than about 0.025 inches. Various rib arrangements are contemplated. In the preferred embodiment, there are at least three radial ribs, and preferably four ribs spaced at 90 degrees to each other. A lid having the same basic structure may also be produced. Generally any suitable rib layout could be selected. A large number of ribs could be provided, if desired, though not a requirement. The ribs need not necessarily be radial. The ribs need not necessarily be continuous, and they need not necessarily run all the way from the center to the side wall, or from side wall to side wall. The ribs need not necessarily be straight, but could be curved. The ribs could project downwardly instead of or in addition to upwardly.
REFERENCES:
patent: 2874091 (1959-02-01), Fisk
patent: 3165450 (1965-01-01), Scheidt
patent: 4728607 (1988-03-01), Dorn et al.
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