Magnetic stirrer apparatus with improved stirring action

Details Magnetic stirrer apparatus with improved stirring action Magnetic stirrer apparatus with improved stirring action

1986-09-04

1988-07-26

Simone, Timothy F.

Agitating

Stirrer within stationary mixing chamber

Magnetic stirrer

366247, 366286, B01F 1308

Patent

active

047596350

ABSTRACT:
A stirrer apparatus for stirring culture medium has a flask with a lid, a floating magnetic stirrer responsive to a moving magnetic field, and a moving field generator including poles and coils. A guide system is provided for the stirrer including a rod which extend upwardly from the stirrer and a tube which extends through the lid, the rod extending into and being rotatable in the tube; the tube has a closed upper end. A stirrer apparatus having a floating magnetic stirrer with a central, downwardly extending, closed end guide tube, and lid with a guide rod extending into the guide tube. The stirrer included one or more continuous impellers extending across the rotational axis of the stirrer; in one embodiment, the impeller is provided by a bar magnet or magnets beneath a float and in another embodiment a bar magnet is within the float, and the impeller is a continuous blade.

REFERENCES:
patent: 4465377 (1984-08-01), de Bruyne
patent: 4498785 (1985-02-01), de Bruyne
patent: 4512666 (1985-04-01), O'Connell

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