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:
Apr. 03, 1979
Filed:
Jan. 13, 1977
James K Jensen, Ankeny, IA (US);
Joe H Hoeksema, Des Moines, IA (US);
Deere & Company, Moline, IL (US);
Abstract
An arrangement of parallel fingers within the head of a cotton stripper is twisted in response to the operation of a pair of supporting cylinders disposed between the head and a vehicle frame to which the head is pivotably mounted to vary the heights of the opposite ends of the arrangement of parallel fingers in response to height sensors mounted at the opposite ends. The parallel fingers are mounted on an elongated tubular structure which extends between and is attached to the opposite ends of the head and which twists in response to the action of the cylinders and the weight of the head to twist the normally planar arrangement of parallel fingers. Transversely mounted stalk walker and feeder shafts in the region of the fingers are journaled in universal bearings at the opposite ends of the head to permit distortion of the head and twisting of the arrangement of parallel fingers. The opposite height sensors are coupled to operate a pair of valves included in separate circuits from a common source of pressurized fluid to vary the fluid pressure at the cylinders which are also coupled to the circuits, thereby adjusting the height of each end of the array of parallel fingers in accordance with the height sensor at that end and independently of the other end of the finger arrangement. The valves can also be adjusted independently of the action of the sensors in response to external commands such as from the operator of the cotton stripper by an arrangement which varies the position of linkage which is coupled to the height sensors relative to the actuating plungers of the valves.