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:
Aug. 24, 1993
Filed:
Jan. 30, 1992
Robert M Fachini, Naperville, IL (US);
John H Chance, Amarillo, TX (US);
David Brandt, Downers Grove, IL (US);
Daniel A Miller, Amarillo, TX (US);
Case Corporation, Racine, WI (US);
Abstract
A lift system for individually elevating one or more harvesting units of a cotton harvester through a range of movement extending between an operational position and a raised position while maintaining other harvesting units in an operational position relative to the harvester. The lift system includes a source of actuating fluid, a fluid pressure actuator connected to each harvesting unit for elevating a respective harvesting unit, and a control system connected between the source of actuating fluid and each fluid pressure actuator for selectively controlling the elevation of the harvesting units relative to the chassis of the harvester. The control system includes ground sensors for individually maintaining the harvesting units in a preselected elevational position relative to the harvester. The control system further includes a series of electro/hydraulic valves for independently interrupting and effectuating the flow of actuating fluid to the fluid pressure actuators thereby providing independent control over elevation of the harvesting units.