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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.:

US 12787927 B1

PDFFull Text
Date of Patent:
Nov. 10, 2026

Filed:

Feb. 23, 2024

Header clutch slip detection

Applicant:

Deere & Company, Moline, IL (US);

Inventors:

Haifeng Zhang, West Fargo, ND (US);

Jason A. Jelinek, Fargo, ND (US);

David M. Thompson, Pelican Rapids, MN (US);

Hector Alonso Gonzalez Miranda, Monterrey, MX;

Scott E. Faulkner, Orion, IL (US);

Troy M. Heims, Davenport, IA (US);

Mitchel J. Lindberg, Geneseo, IL (US);

Jeremy J. Zeltinger, Valley City, ND (US);

Spencer J. Harwood, Fargo, ND (US);

Francisco De Borja Lobato, Las Rozas, ES;

Assignee:

Deere & Company, Moline, IL (US);

Attorneys:

Christopher J. Volkmann

KELLY, HOLT & CHRISTENSON PLLC

Primary Examiner:

Krishnan Ramesh

Int. Cl.
CPC ...
A01D 41/127 (2006.01); A01D 41/14 (2006.01); A01D 45/02 (2006.01); A01D 69/08 (2006.01); G07C 5/08 (2006.01);
U.S. Cl.
CPC ...
A01D 41/127 (2013.01); A01D 45/021 (2013.01); A01D 69/08 (2013.01); G07C 5/0808 (2013.01); A01D 41/141 (2013.01);
Abstract

A vibration sensor is mounted to a corn head of an agricultural harvester. The vibration sensor generates a sensor signal indicative of sensed vibrations on the corn head. The sensor signal is converted to a digital signal and a bandpass filter is applied to filter out signals in frequency ranges that do not represent slip clutch impulses. The filtered signal is demodulated to better identify the slip impulses generated when the slip clutch is slipping. The demodulated signal is transformed to a frequency domain signal and an input frequency is calculated based upon the speed of rotation of the drive shaft (or an expected range of speeds), the slip clutch configuration, and a gear ratio of a gear box between the drive shaft and the slip clutch. The power in parts of the frequency domain signal that are within a desired range of the input frequency is compared to a threshold power value to determine whether a slip clutch is slipping. A slip status signal, indicative of whether a slip clutch is slipping, is output. A control signal is generated based upon the slip status.

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Zhang, Haifeng. (2026). Header clutch slip detection (U.S. Patent No. 12787927). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12787927

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