Agitating – Having interrelated feed and discharge means – Recirculating from and to mixing chamber
Patent
1984-02-28
1985-05-07
Jenkins, Robert W.
Agitating
Having interrelated feed and discharge means
Recirculating from and to mixing chamber
366262, 366298, B01F 1500
Patent
active
045154821
ABSTRACT:
An apparatus for the preparation of sterile suspensions and solutions is disclosed which includes a container wherein a starting mixture is subjected to high intensity mixing by means of a high speed, high shear external mixer disposed in an external recirculation loop. The mixer used in the present invention is a revolving hollow cylinder open at the bottom thereof and having grooves in the sides thereof, such that the mixture is drawn through the bottom of the mixer head and forced radially outwardly through the grooves. The mixer head is preferably disposed in the upper leg of a T-shaped fitting of the recirculation loop, and a special shaft seal is used to prevent leakage of the materials being treated along the drive shaft used to rotate the mixer head.
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Dahlberg Arthur D.
Jenkins Robert W.
The Upjohn Company
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