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:
Jun. 18, 2019
Filed:
Aug. 11, 2016
Applicant:
Deere & Company, Moline, IL (US);
Inventor:
Aaron L. Barfels, Davenport, IA (US);
Assignee:
DEERE & COMPANY, Moline, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01C 7/20 (2006.01); F15B 11/08 (2006.01); A01B 63/10 (2006.01); F15B 11/10 (2006.01); G01L 9/00 (2006.01); A01B 63/11 (2006.01);
U.S. Cl.
CPC ...
A01B 63/1013 (2013.01); A01C 7/205 (2013.01); F15B 11/10 (2013.01); G01L 9/00 (2013.01); A01B 63/11 (2013.01); F15B 11/08 (2013.01); F15B 2211/351 (2013.01); F15B 2211/6306 (2013.01); F15B 2211/7053 (2013.01);
Abstract
A hydraulic circuit with electronic latching through valve assemblies to allow full control of ground engaging tools including raising, lowering, and providing regulated active down force pressure via a work vehicle valves with manual input while allowing a continuous pressure source to be used in parallel. Pressure transducers and electrically controlled valves along with an electric control circuit allow automatic switching between manual control and automatic control of the ground engaging tools.