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:
Nov. 09, 2021
Filed:
May. 19, 2017
Applicant:
Vermeer Manufacturing Company, Pella, IA (US);
Inventors:
Nathan D. Dockter, Pella, IA (US);
Kent L. Thompson, Otley, IA (US);
Curt T. Graham, Lynnville, IA (US);
Kent M. Recker, Pella, IA (US);
Assignee:
Vermeer Manufacturing Company, Pella, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B 69/00 (2006.01); B60B 33/02 (2006.01); B62D 7/08 (2006.01); A01B 49/00 (2006.01); A01F 15/08 (2006.01); A01F 15/18 (2006.01);
U.S. Cl.
CPC ...
A01B 69/007 (2013.01); A01B 49/00 (2013.01); A01F 15/08 (2013.01); B60B 33/026 (2013.01); A01F 2015/186 (2013.01); B62D 7/08 (2013.01);
Abstract
Steered caster wheel systems that include a disengagement system to enable a caster wheel steering mode and non-caster wheel steering mode are disclosed. In some embodiments, the caster wheels are mounted to a subframe that may be independently suspended from the chassis of a vehicle such as a self-propelled vehicle.