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. 02, 1978
Filed:
Feb. 17, 1977
Larry W Lorimor, Joliet, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
In a fluid system having a main control valve and bypass control valve both responsive to pilot pressure for actuation thereof for supplying fluid to a pair of hydraulic actuators and a pair of bypass valves, the pump's flow is supplied to the first actuator and the exhaust therefrom to the second via a third control valve, the exhaust from the second actuator returns via the third control valve and the main control valve to sump, the pump's flow being subjected through the bypass control valve to the first of the bypass valves whereby once a first predetermined pressure has been reached, the pump's flow passes via the bypass valve through the second end of the first actuator and is combined with the exhaust of the first actuator for driving the second actuator.