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:
Jul. 03, 1990
Filed:
May. 12, 1987
Applicant:
Inventors:
Bernard J Van Wie, Pullman, WA (US);
Michael L Elliott, Richland, WA (US);
Thomas M Brouns, Pullman, WA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ;
U.S. Cl.
CPC ...
43524025 ; 43524046 ; 43524047 ; 435243 ; 435255 ; 435256 ; 435286 ; 435312 ; 435813 ;
Abstract
Bioprocessing apparatus and method using centrifugal acceleration of cells to maintain a culture within a reaction zone. The reactor has an inflow at a relatively distance inlet and an outflow at an inwardly spaced point toward the rotational axis. The reaction chamber has an inwardly diverging zone with a velocity gradient which captures cells of varying sizes. A recycle system is preferably used to recycle medium containing nutrients for the culture microbes. Byproducts of the cells are removed by the circulated medium and can be extracted using a desired extraction process.