Magnetic impeller means for a mixing vessel

Details Magnetic impeller means for a mixing vessel Magnetic impeller means for a mixing vessel

1987-02-05

1991-02-19

Stinson, Frankie L.

Agitating

Stirrer within stationary mixing chamber

Magnetic stirrer

366314, 366331, 415116, 4151211, B01F 1308

Patent

active

049938410

ABSTRACT:
Mixing vessel for sterile fluids, having a closed recess forming an integral part of the bottom wall of said vessel. An externally mounted rotatable drive unit on said vessel has means for establishing a magnetic coupling with an impeller inside the vessel. The hub of said impeller is cup-shaped and supported on bearing means on the inner end of the recess with a certain radial play to the wall of said recess, coaxially with said coupling means, and has substantially radially extending passageways between inner and outer hub surfaces.

REFERENCES:
patent: 2495895 (1950-01-01), Hervert
patent: 3062512 (1962-11-01), Carter
patent: 3433465 (1969-03-01), Szpur
patent: 3580547 (1971-05-01), Amorese
patent: 3694341 (1972-09-01), Luck
patent: 3730488 (1973-05-01), Gardner
patent: 4194843 (1980-03-01), Martin
patent: 4663055 (1987-05-01), Ling

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