Chemistry: molecular biology and microbiology – Spore forming or isolating process
Patent
1980-08-21
1982-08-10
Naff, David M.
Chemistry: molecular biology and microbiology
Spore forming or isolating process
435285, 435310, 435313, 435315, C12N 500, C12M 114, C12M 106
Patent
active
043439047
ABSTRACT:
Animal cells are grown in a vertically disposed cylindrical vessel containing a stack of parallel spaced-apart discs inclined at least 5.degree. from the horizontal and mounted to a rotatable axial shaft. The vessel is closed by a top plate having a plurality of inlets and a bottom plate with an outlet, and contains an external pumping loop for circulating contents of the vessel from the bottom to the top of the vessel. Growing of the cells is carried out by substantially filling the vessel with a mixture of animal cells and growth medium, allowing the cells to settle on the disc surfaces and then rotating the axial shaft at a speed of at least 5 rpm while continuously circulating the vessel contents from the bottom to the top of the vessel. This process and apparatus provides efficient mixing and ensures a homogeneous system within the vessel.
REFERENCES:
patent: 3407120 (1968-10-01), Weiss et al.
patent: 3905865 (1975-09-01), McAleer et al.
patent: 3933585 (1976-01-01), McAleer et al.
patent: 4208483 (1980-06-01), Lee
patent: 4262090 (1981-04-01), Colby et al.
Birch John R.
Cartwright Terence
Ford John A.
G. D. Searle & Co.
McCowin Kathleen S.
Naff David M.
Passe James G.
Tockman Albert
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