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. 04, 1976
Filed:
Nov. 12, 1973
Applicant:
Inventors:
Charles S Block, Allentown, PA (US);
Michael S Chen, Macungie, PA (US);
Olaf J Noichl, Whitehall, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02C / ;
U.S. Cl.
CPC ...
210 14 ; 210 15 ; 261 91 ;
Abstract
A wastewater treatment system of the activated sludge type is disclosed in which variable degrees of effective staging of the mixed liquor are achieved in an oxygenated aeration basin without the use of walls or partitions to physically divide the mixed liquor into separate liquid stages.