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:
Nov. 09, 2004
Filed:
Dec. 31, 2002
Arnaud Muller-Feuga, Soreze, FR;
Jack Legrand, Saint-Nazaire, FR;
Jérémy Pruvost, Saint-Reverend, FR;
Patrick Legentilhomme, Dreffeac, FR;
Roland Leguedes, L'Hopital-Camfrout, FR;
Institut Francais de Recherche pour l'Exploitation de la Mer (IFREMER), Issy les Moulineaux, FR;
Abstract
The invention relates to a method of improving the transfer in an annular biological reaction chamber defined by coaxial inner and outer walls ( ) and in which there flows a liquid reaction medium containing a culture of microorganisms or of cells from vegetable or animal macroorganisms in suspension. At least one of the walls is an exchange wall enabling gaseous or liquid matter to be transferred or allowing light to pass through. The reaction medium is subjected to a turbulent primary flow that is helical and that under the action of centrifugal force creates rotary secondary vortices so as to encourage renewal of the culture in the vicinity of the exchange wall.