Chemistry: molecular biology and microbiology – Spore forming or isolating process
Patent
1992-12-23
1994-07-19
Warden, Robert J.
Chemistry: molecular biology and microbiology
Spore forming or isolating process
43524025, 435286, 435296, 435312, 435313, 435818, C12N 502, C12M 124, C12M 104, C12M 110
Patent
active
053309081
ABSTRACT:
An annular culture vessel for growing mammalian cells is constructed in a one piece integral and annular configuration with an open end which is closed by an endcap. The culture vessel is rotatable about a horizontal axis by use of conventional roller systems commonly used in culture laboratories. The end wall of the endcap has tapered access ports to frictionally and sealingly receive the ends of hypodermic syringes. The syringes permit the introduction of fresh nutrient and withdrawal of spent nutrients. The walls are made of conventional polymeric cell culture material and are subjected to neutron bombardment to form minute gas permeable perforations in the walls.
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Fein Edward K.
Miller Guy M.
Schlorff Russell E.
The United States of America as represented by the Administrator
Trembley T. A.
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