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:
May. 25, 2010
Filed:
Aug. 01, 2007
Douglas Robert Fischer, Parkersburg, IA (US);
Douglas Robert Fischer, Parkersburg, IA (US);
Deere & Company, Moline, IL (US);
Abstract
The invention relates to a vehicle suspension system. There is a need for a stable walking beam suspension system where the beam can oscillate and move vertically. Such a suspension system includes a support fixed to the vehicle frame and having first and second ends. A swing arm has a first end pivotally coupled to the first end of the support via a pair of spaced apart pivot pins. Air bags are coupled between the frame and the second end of the swing arm. A walking beam has opposite ends coupled to left and right wheel support assemblies. The walking beam is pivotally coupled to the swing arm. A damping cylinder is coupled between the frame and the second end of the swing arm. Resilient bumper members are engagable with the walking beam and are mounted on an end of the swing arm and fixed to an end of the support.