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:
Jul. 04, 1989
Filed:
Aug. 30, 1988
Stanley P Wellman, Ottumwa, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A pull-type mower-conditioner has a main frame including a pair of laterally spaced, downwardly projecting legs. A lower conditioner roll has opposite ends rotatably mounted to the main frame while an upper conditioner roll is mounted for arcuate movement towards and away from the lower roll by means of a pair of laterally spaced, L-shaped roll support arms that are respectively vertically pivotally mounted to the pair of main frame legs and have forwardly projecting legs in which opposite ends of the upper roll are rotatably mounted. A header is suspended from the main frame for vertical floating movement by a pair of four-bar linkages respectively coupled to opposite ends of the header and coupled directly between upstanding legs of each of the roll support arms and a bottom link of each of the four-bar linkages is a float spring that acts to simultaneously exert a lifting force on the header and a downwardly biasing force on the upper conditioner roll.