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. 06, 1976
Filed:
Aug. 01, 1974
Virgil Dean Haverdink, Ankeny, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A foldable multiple sectioned farm implement having a center section, side sections that fold inwardly and upwardly so that the center of gravity of the folded sections is inboard of the respective folding pivotal axis, and biasing structure which acts to unfold the side sections by forcing the respective center of gravity of each folded section outwardly of its respective pivotal axis. The biasing structure is mounted on a brace member secured to the center section to engage the side sections when folded inwardly and upwardly. Included with the biasing structure are support mounts positioned on each end of the brace member, each of which slidably supports a spring biased rod. Each rod contacts a side section to bias it outwardly by the spring bias acting thereon.