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. 30, 2023
Filed:
Dec. 28, 2021
Caterpillar Underground Mining Pty. Ltd., South Burnie, AU;
Riley A. Albers, Sugar Grove, IL (US);
David R. Evans, Bear Creek, NC (US);
William N. O'Neill, Eureka, IL (US);
Edward William Mate, Manhattan, IL (US);
Fuaad Ahmed Sayeed, Dunlap, IL (US);
Jason P. Wigg, Ridgley, AU;
James T. Ferrier, Cary, IL (US);
Jeffrey K. Berry, Yorkville, IL (US);
Caterpillar Underground Mining Pty. Ltd., Tasmania, AU;
Abstract
A hydraulic system for controlling an implement on a work machine may include a hydraulic reservoir, a hydraulic pump in fluid communication with the reservoir, a central valve in fluid communication with the pump and configured for controlling the implement, a pressure relief system arranged in fluid communication with the hydraulic pump and the central valve, and a controller. The controller may be configured for controlling the hydraulic pump, the central valve and the pressure relief system and selecting between operating the hydraulic system at a first pressure and a second pressure based on a factor relating to implement position.