Double impeller for stirring sterile liquids

Details Double impeller for stirring sterile liquids Double impeller for stirring sterile liquids

1993-09-30

1995-04-18

Jenkins, Robert W.

Agitating

Stirrer within stationary mixing chamber

Magnetic stirrer

366314, 366327, 366330, B01F 1308, B01F 722

Patent

active

054072727

ABSTRACT:
An impeller for stirring has an impeller head having a central hollow chamber with an opening, a stirring tool provided on the impeller head, and a driving pin received in the opening. The stirring tool is formed as a propeller having a rotary direction which produces an upwardly directed flow and provided in a lower region with flow producing surfaces which form an additional flow directed opposite to the flow produced by the propeller.

REFERENCES:
patent: 2350534 (1944-06-01), Rosinger
patent: 2459224 (1949-01-01), Hendricks
patent: 2566743 (1951-09-01), Okulitch
patent: 2771111 (1956-11-01), Seyfried
patent: 3024010 (1962-03-01), Sperling
patent: 3250519 (1966-05-01), Herfeld
patent: 3863903 (1975-02-01), Brehmer
patent: 4209259 (1980-06-01), Rains
patent: 4462694 (1984-07-01), Ernster
patent: 4653519 (1987-03-01), Kanner
patent: 4993841 (1991-02-01), Lofgren et al.
patent: 5061079 (1991-10-01), Shiobara

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