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. 31, 2024
Filed:
Dec. 03, 2020
Deere & Company, Moline, IL (US);
Marcus L. Kuhl, Cedar Falls, IA (US);
David Griffin Reid, Cedar Falls, IA (US);
DEERE & COMPANY, Moline, IL (US);
Abstract
An electrohydraulic valve system for controlling a braking system of a work machine includes a valve body forming a bore and a fluid channel, and a valve spool disposed within the bore and in fluid communication with the fluid channel. The valve spool includes at least a first land and a second land. An armature is positioned with respect to the valve spool to move the valve spool axially within the bore between a first position and a second position. A spring is disposed within the bore and biases the valve spool to its first position. A first electromagnetic coil and a second electromagnetic coil are operably controlled between an energized state and a de-energized state. The spring biases the valve spool to its first position when at least one of the first and second electromagnetic coil is in its de-energized state.