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. 18, 1982
Filed:
Oct. 06, 1980
David A Siekmeier, Columbus, NE (US);
Glen L Andersen, Columbus, NE (US);
Arthur L Zimmerer, deceased, late of Lindsay, NE (US);
by First National Bank and Trust Company, executor, Columbus, NE (US);
William P Zimmerer, San Luis Obispo, CA (US);
Lindsay Manufacturing Company, Lindsay, NE (US);
Abstract
An overhead irrigation system and a method of controlling it whereby a main irrigation pipe, supported on towers, is moved laterally across a field. The towers at the extremities of the pipe are independently driven while the remaining towers move in response to misalignment between pipe segments caused by the motion of the outside towers. Proper overall direction of the system is maintained by a path sensor which detects deviation from the designated path and corrects it by slowing down the tower at the end toward which the correction is required, thereby causing the entire unit to pivot about a point on or beyond and in line with the end of the unit. Two-way misalignment sensors are capable of propagating a path correction signal along the entire length of the unit and in either direction. An engine, generator and pump are mounted in a sling support hung from the pipe.