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.

Date of Patent:
Nov. 03, 2020

Filed:

Jun. 30, 2017
Applicant:

Deere and Company, Moline, IL (US);

Inventors:

Timothy S. Hunt, Davenport, IA (US);

Paul D. Marvin, Dewitt, IA (US);

Madan M. Rajendran, Bettendorf, IA (US);

Assignee:

Deere & Company, Moline, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01D 57/04 (2006.01); A01D 41/14 (2006.01); F15B 11/22 (2006.01); F15B 13/02 (2006.01); A01B 63/10 (2006.01); A01D 34/43 (2006.01); A01D 57/12 (2006.01); F15B 15/14 (2006.01); F15B 21/08 (2006.01); A01D 34/04 (2006.01);
U.S. Cl.
CPC ...
A01D 57/04 (2013.01); A01B 63/10 (2013.01); A01D 34/43 (2013.01); A01D 41/141 (2013.01); A01D 57/12 (2013.01); F15B 11/22 (2013.01); F15B 13/021 (2013.01); F15B 15/149 (2013.01); F15B 21/08 (2013.01); A01D 34/04 (2013.01); F15B 2211/7128 (2013.01); F15B 2211/765 (2013.01);
Abstract

A rephasing system may include a first hydraulic cylinder, a second hydraulic cylinder, a first rephasing valve, a second rephasing valve and a controller. The first hydraulic cylinder and the second hydraulic cylinder include first and second pistons, respectively. A first hydraulic fluid line connects a hydraulic supply to a first side of the first piston while a second hydraulic fluid line connects a second side of the first piston to a first side of the second piston. The first rephasing valve fluidly couples the first side of the first piston to the first side of the second piston while the second hydraulic fluid line fluidly couples the second side of the second piston to the hydraulic supply. The controller selectively opens and closes the first and second rephasing valves to re-phase the first and second pistons.


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