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:
Dec. 30, 2014
Filed:
Oct. 21, 2011
Brad A. Edler, Waterloo, IL (US);
Jeffrey L. Kuehn, Metamora, IL (US);
Jeremy T. Peterson, Washington, IL (US);
Michael T. Verkuilen, Metamora, IL (US);
Brad A. Edler, Waterloo, IL (US);
Jeffrey L. Kuehn, Metamora, IL (US);
Jeremy T. Peterson, Washington, IL (US);
Michael T. Verkuilen, Metamora, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A hydraulic system is disclosed having first, second, and third pumps. The hydraulic system may also have a first actuator connected to the first pump in closed-loop manner, a second actuator connected to the second pump in closed-loop manner, and a third actuator. The hydraulic system may further have a selector valve associated with the third pump, and a first switching valve associated with the third pump and the third actuator. The first switching valve may be movable between a first position at which the third pump is connected to the third actuator in a closed-loop manner to move the third actuator in a first direction, a second position at which the third pump is connected to the third actuator in a closed-loop manner to move the third actuator in a second direction, and a third position at which the third pump is connected to the selector valve.