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. 04, 2018
Filed:
Aug. 23, 2016
Applicant:
Netafim Ltd., Tel Aviv, IL;
Inventors:
Dennis Hannaford, Coarsegold, CA (US);
Todd Rinkenberger, Atascadero, CA (US);
Assignee:
Netafim Ltd., Tel Aviv, IL;
Primary Examiner:
Int. Cl.
CPC ...
A01C 23/00 (2006.01); A01G 25/00 (2006.01); B01F 15/00 (2006.01); B01F 15/02 (2006.01); A01C 23/04 (2006.01);
U.S. Cl.
CPC ...
A01C 23/007 (2013.01); A01C 23/042 (2013.01); B01F 15/00227 (2013.01); B01F 15/00422 (2013.01); B01F 15/026 (2013.01); B01F 2215/0052 (2013.01);
Abstract
Disclosed are methods and apparatus for blending wastewater with fresh water for fertigation of a crop. In one embodiment, the wastewater and the fresh water are blended at a predetermined flow ratio through a blending valve to obtain a blended stream. A logic based controller controls the blending valve to set a predetermined flow ratio according to the electricity conductivity (EC) of the blended water stream. The blending, measuring, and adjusting steps form a feedback loop so as to maintain the blended stream at a target EC value.