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. 22, 1981
Filed:
Apr. 21, 1980
Kenneth J Yost, Eaton, OH (US);
McNeil Corporation, Akron, OH (US);
Abstract
A sewage treatment system comprising means defining a receptacle including at least one chamber for receiving a body of sewage composed of liquid and solids the top of which is exposed to air, means for applying air, under pressure, immediately below the upper surface of said body of sewage in said one chamber, at an angle thereto to physically lift portions of said sewage from the upper surface of said body thereof in a spray form, thereby to expose said lifted portions to air and to infuse said portions with oxygen, the nature and angle of application of the air being effective at the same time to induce a current in the body of sewage having a downward spiral and an ever-decreasing velocity, said current being effective to induce suspended solids to be driven to the bottom of said chamber together with the heavy solids settled thereon, thereby to facilitate an extremely rapid aerobic digestion.