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:
Jan. 20, 2026

Filed:

Jul. 13, 2023
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventor:

Eric W. Cler, Oswego, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/42 (2006.01); E02F 3/43 (2006.01); E02F 9/20 (2006.01);
U.S. Cl.
CPC ...
E02F 3/422 (2013.01); E02F 3/432 (2013.01); E02F 9/2029 (2013.01);
Abstract

A work machine includes a load bucket and operator controls for controlling position of the load bucket. The work machine can include an actuator assembly coupled to hold the load bucket in a position based upon signals from the operator controls. The actuator assembly can include a motor and a brake assembly. The brake assembly can include a non-spring-coupled brake and a spring-coupled brake. The work machine can further include control circuitry coupled to the actuator assembly to activate the spring-coupled brake responsive to detection that the non-spring-coupled brake is holding the load bucket stationary. The control circuitry can further control the motor to apply additional braking force upon detecting that a magnitude of oscillation of the work machine exceeds a threshold magnitude based on a damping coefficient of the spring-coupled brake.


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