Chemistry: molecular biology and microbiology – Apparatus – Including measuring or testing
Patent
1994-05-11
1996-11-12
Beisner, William
Chemistry: molecular biology and microbiology
Apparatus
Including measuring or testing
4352887, 435808, 435809, 422 65, 422104, 211 41, C12M 134
Patent
active
055739504
ABSTRACT:
An apparatus for counting microorganism colonies on at least one disposable microorganism culturing medium having a substantially planar substrate. The apparatus is adapted to interact with a cassette holding a number of similar substrates at once. The apparatus includes an imaging device capable of detecting colonies on the substantially planar substrate, a cassette positioning device for moving the cassette so that the substrates supported within the cassette are moved sequentially into a predetermined position relative to the imaging device, and an ejecting device for ejecting a substantially planar substrate in turn from the cassette when that substrate is in the predetermined position from the cassette and into an imaging position adjacent the imaging device. Suitable cassettes and a method for counting colonies on substrates supported within a cassette are also disclosed.
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Graessle Josef A.
Schwarz Werner R.
Wildt Theo N.
Beisner William
Busse Paul W.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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