The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 1990
Filed:
Mar. 27, 1989
Rudolf F Bliem, Castro Valley, CA (US);
James F Long, San Francisco, CA (US);
Baxter International, Inc., Deerfield, IL (US);
Abstract
A static oxygenator for oxygenating a liquid, particularly a suspension culture of animal cells in a liquid culture medium, comprised of a bottom gassing portion comprised of generally concentric vertically oriented hollow cylinders of porous gas-permeable, liquid-impermeable material, and an upper degassing section comprised of vertical extensions of the concentric cylinders such that at least one liquid overflow weir is provided at the juncture between the bottom and upper sections. Gas directed into the bottom of the annular space between the concentric cylinders rises therein and, across the porous material, oxygenates liquid in contact therewith or in proximity thereto up to the point where the liquid overflows the weir, and the gas then continues up the annular space in the vertical extensions for degassing through the porous material above the liquid level.