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. 05, 2025
Filed:
May. 09, 2022
Caterpillar Inc., Peoria, IL (US);
Mark W. Thompson, Manhattan, KS (US);
Jeffrey R. Peterson, Wamego, KS (US);
Trent R. Stefek, Wamego, KS (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A hydraulic system for depressurizing a work tool auxiliary circuit of a work machine. The system comprises: a power source; a reservoir of hydraulic fluid, a plurality of hydraulic lines, a pressure source, a control valve, a depressurize line connected to at least one of the plurality of hydraulic lines and the reservoir, the depressurize line includes an electromechanical valve for regulating the flow of hydraulic fluid in the depressurize line; a controller and a coupler switch comprising at least two throws and having three positions where one of the three positions actuates the electromechanical valve to depressurize the work tool auxiliary circuit. The hydraulic system can be provided as a kit to existing work machines for depressurizing the work tool hydraulic auxiliary circuit of a work machine.