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:
Jan. 17, 1984
Filed:
Jan. 18, 1982
Applicant:
Inventor:
David M Donofrio, Scotts Valley, CA (US);
Assignee:
Fermentec Corporation, Los Gatos, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12P / ; C12M / ;
U.S. Cl.
CPC ...
435243 ; 261 29 ; 261124 ; 261D / ; 435161 ; 435255 ; 435313 ; 435316 ; 435801 ; 435813 ; 435819 ;
Abstract
A method for agitating and mixing a gas with a medium in a closed fermentation vessel comprising recirculating said medium through a venturi jet mixer whereby it is mixed with the gas under high shear conditions to form a mixture of gas saturated medium and a dispersion of small gas bubbles and projected the mixture in the fermentation vessel below the liquid surface level in a plume extending horizontally from the jet mixer, then rising vertically to the liquid surface.