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:
Nov. 04, 1997
Filed:
Nov. 01, 1995
Marc D Gibson, Greenville, SC (US);
Michael E Green, Cary, NC (US);
David G Surridge, Knightdale, NC (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A pilot hydraulic system controller including a pilot controller valve for controlling the flow of hydraulic fluid to actuate a primary hydraulic system valve, a pilot controller lockout valve, and a detent control circuit for selectively energizing a detent solenoid coil connected to said pilot controller valve, the detent control circuit include a switch means for selectively disabling the detent solenoid coil when the pilot controller lockout valve is actuated to hydraulically disable the pilot controller, so as to prevent the detent solenoid coil from acting upon the pilot controller valve when the pilot controller is hydraulically disabled.