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. 17, 2011
Filed:
Apr. 29, 2009
Applicant:
Christopher E. Schafer, Adair, IA (US);
Inventor:
Christopher E. Schafer, Adair, IA (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E02B 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An automatic water flow regulator apparatus and a system for controlling and regulating the level of groundwater in an agricultural field. An automatic flow regulator adapted for use in a buried tile line that responds to conditions upstream and downstream along the line in order to regulate flow. A system having a tile line buried in a field for draining water therefrom, a preferably manually operated terminal control stand positioned at the discharge end of the system, and one or more automatic water flow regulators along the line for controlling the flow of water therethrough in conjunction with said terminal control stand.