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:
Apr. 14, 2026
Filed:
Feb. 14, 2023
Dentro-p, Llc, Yakima, WA (US);
Thomas E. Coleman, Yakima, WA (US);
DENTRO-P, LLC, Yakima, WA (US);
Abstract
A method for the treatment of municipal wastewater by an activated sludge process that uses an overflow weir to extract waste flows from the surface of aeration basins, which is especially useful for continuous-flow treatment systems. A downward opening overflow weir is precisely controlled to remove a surface wasting flow from the aeration basin with the weir automatically moved up and down to accurately and precisely maintain a desired depth of flow over the weir, preferably with a microprocessor-based controller executing a control algorithm based on variable inputs to provides for accurate and precise control of the depth of surface wasting flow over the weir, without excessive oscillation of the overflow weir's movement and the resultant excessive oscillation in the depth of flow over the weir.