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:
Aug. 20, 2024
Filed:
Feb. 26, 2020
Applicant:
Deere & Company, Moline, IL (US);
Inventors:
Brent G. Rinholm, Fuquay Varina, NC (US);
Zackary P. Sipper, Raleigh, NC (US);
Assignee:
DEERE & COMPANY, Moline, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01D 75/30 (2006.01); A01D 34/00 (2006.01); A01D 34/44 (2006.01); A01D 34/54 (2006.01); A01D 69/03 (2006.01); A01D 34/64 (2006.01); A01D 34/74 (2006.01);
U.S. Cl.
CPC ...
A01D 75/30 (2013.01); A01D 34/006 (2013.01); A01D 34/44 (2013.01); A01D 34/54 (2013.01); A01D 69/03 (2013.01); A01D 2034/645 (2013.01); A01D 34/74 (2013.01);
Abstract
An adjustable lift rate system on a grass mowing machine such as a riding greensmower having a lift and lower circuit including a plurality of hydraulic lift cylinders to lift and lower a plurality of cutting units, and a controller providing a current to a proportional solenoid valve to bypass the hydraulic lift cylinders. An operator control may be used to adjust the current to the proportional solenoid valve to adjust the lift and lower rate of the cutting units.