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:
May. 20, 2003
Filed:
Oct. 05, 2001
Robin John Batterham, Sandringham 3198, AU;
Warwick Arthur Hoffmann, Ivanhoe 3079, AU;
Nicholas Katsikaros, Heidelberg 3084, AU;
Other;
Abstract
A reactor for aerating a fluid with a gas comprises a mixing tank ( ) for the fluid and a centrally located vertical draft tube ( ) submerged in the fluid to divide the mixing tank ( ) into an inner chamber ( ) and an outer chamber ( ). The reactor further comprises a motor driven axial flow impeller ( ) located in the draft tube ( ) for circulating fluid downwardly through the inner chamber ( ) and upwardly through the outer chamber ( ). The reactor further comprises an external circuit for withdrawing a portion of the fluid from the mixing tank ( ), aerating the fluid, and returning the aerated fluid to the mixing tank ( ). The aerator is in the form of a venturi device ( ).