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:
Nov. 17, 2020
Filed:
Mar. 25, 2019
Applicant:
Precision Planting Llc, Tremont, IL (US);
Inventors:
Derek A. Sauder, Tremont, IL (US);
Ian R. Radtke, Washington, IL (US);
Jason J. Stoller, Eureka, IL (US);
Assignee:
Precision Planting LLC, Tremont, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B 63/114 (2006.01); A01C 7/18 (2006.01); A01C 7/20 (2006.01); A01B 13/08 (2006.01); A01C 5/06 (2006.01); A01B 63/111 (2006.01);
U.S. Cl.
CPC ...
A01B 63/114 (2013.01); A01B 13/08 (2013.01); A01C 5/06 (2013.01); A01C 7/18 (2013.01); A01C 7/205 (2013.01); A01B 63/111 (2013.01);
Abstract
Systems, methods and apparatus for controlling the downforce applied to a row unit of an agricultural implement having multiple row units. A downpressure control device in fluid communication with a down chamber of the least one actuator maintains as a selected downpressure, any one of a continuous range of pressures in the downpressure chamber. Pressure in the down chamber tending to oppose pressure in the lift chamber of the at least one actuator.