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:
May. 28, 2019
Filed:
Jan. 06, 2017
Cnh Industrial Canada, Ltd., Saskatoon, CA;
Matthew R. Sudbrink, Metamora, IL (US);
Kena Shah, Woodridge, IL (US);
Dean A. Knobloch, Tucson, AZ (US);
James W. Henry, Saskatoon, CA;
CNH Industrial Canada, Ltd., Saskatoon, Saskatchewan, CA;
Abstract
An agricultural machine or implement has a main frame section and at least one wing section, each having lift cylinders. A main shank frame may be pivotally attached to the main frame section and may have hydraulically adjustable gauge wheels. Wing shank frames may be pivotally attached to the wing sections and may also have hydraulically adjustable gauge wheels. Bypass circuits may be used to individually adjust the lift cylinders and gauge wheel cylinders. A controller or controllers is used to purge air from the lift cylinders, gauge wheel cylinders, cylinders used to raise the shank frames for transport, and from the bypass circuits. The purge routine may be selectable as individual steps, hydraulic subsystem purges, or as one automatic purge routine.