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. 03, 1987
Filed:
Sep. 24, 1986
Emmett G Webster, New Holland, PA (US);
New Holland Inc., New Holland, PA (US);
Abstract
A hydraulic system for unitized raking implements having hydraulically driven left and right rake baskets positionally movable by hydraulic steering cylinders, hydraulic swing cylinders and hydraulic lift cylinders is disclosed wherein all the hydraulically actuated components on the implement can be operatively powered from a single hydraulic circuit from the prime mover. A selector valve divides the flow of fluid coming from the prime mover hydraulic system into first and second loops. The first loop directs hydraulic fluid to the hydraulic motors and lift cylinders in such a manner that whenever the hydraulic motors are operated the hydraulic lift cylinders position the rake baskets into a lowered operating position. The second loop directs hydraulic fluid to the steering and swing cylinders, the flow between which being controlled by a control valve corresponding to each of the rake baskets.