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:
Dec. 09, 1997
Filed:
Oct. 31, 1995
John J Fassbender, Batavia, IL (US);
Donald N Ruehrwein, Batavia, IL (US);
Daniel H Phillips, Hinckley, IL (US);
Chicago Bridge & Iron Technical Services Company, Oak Brook, IL (US);
Abstract
A method and apparatus are disclosed which provide enhanced solids-contacting vessel performance in a vessel in which untreated liquid is injected into a lower portion of the vessel so as to flow in a substantially helical and upward direct to separate the solids from the liquid in a suspended, rotating sludge blanket. The vessel is equipped with an adjustable weir extending substantially radially form the vessel center to its peripheral wall for withdrawing effluent from the vessel from a variety of locations depending upon the flow velocity characteristics of the liquid in the vessel.