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:
Mar. 29, 1988
Filed:
Apr. 29, 1987
New Holland Inc., New Holland, PA (US);
Abstract
A harvester having a mobile base unit adapted for movement over the ground, a transversely extending crop harvesting header supported from the base unit for allowing pivotal movement about a generally fore-and-aft axis of the machine, and a lateral flotation system for pivoting the header about the generally fore-and-aft axis is disclosed wherein the lateral flotation system includes a two way hydraulic actuator means extending between the header and the base unit for pivoting the header in the one or the other direction and positioning the header in a nominal position intermediate opposed extreme positions prior to starting flotation operation, a pressure source coupled by a pair of pressure fluid supply lines to the hydraulic actuator means, and energy storage means connected to the hydraulic actuator means. The energy storage means is in the form of a hydro-pneumatic accumulator coupled to each one of the pressure fluid supply lines and pressurized at a pressure greater than the working pressure of the hydraulic actuator means for pivoting the header in the one or other direction, such that, when the header is positioned at a nominal position and meets an obstruction, said header is permitted to temporarily pivot in the one or other direction away from its nominal position for moving over said obstruction.