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:
Dec. 01, 2020
Filed:
Aug. 07, 2018
Applicant:
Vermeer Manufacturing Company, Pella, IA (US);
Inventors:
Nathan D. Dockter, Pella, IA (US);
Kent M. Recker, Pella, IA (US);
Kent L. Thompson, Otley, IA (US);
Curt T. Graham, Lynnville, IA (US);
Assignee:
Vermeer Manufacturing Company, Pella, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60W 10/20 (2006.01); A01B 69/04 (2006.01); B60K 7/00 (2006.01); B60W 10/08 (2006.01); B62D 11/04 (2006.01); B62D 15/02 (2006.01); B62D 5/10 (2006.01); B62D 7/20 (2006.01); B62D 11/00 (2006.01); B62D 11/24 (2006.01); B62D 9/00 (2006.01); G05D 1/02 (2020.01); B62D 5/06 (2006.01); B62D 5/22 (2006.01);
U.S. Cl.
CPC ...
B60W 10/20 (2013.01); A01B 69/008 (2013.01); B60K 7/0007 (2013.01); B60W 10/08 (2013.01); B62D 5/10 (2013.01); B62D 7/20 (2013.01); B62D 9/00 (2013.01); B62D 11/003 (2013.01); B62D 11/04 (2013.01); B62D 11/24 (2013.01); B62D 15/02 (2013.01); B62D 15/0225 (2013.01); G05D 1/021 (2013.01); B60W 2300/15 (2013.01); B60W 2300/158 (2013.01); B60W 2710/08 (2013.01); B60W 2710/207 (2013.01); B62D 5/06 (2013.01); B62D 5/22 (2013.01); G05D 2201/0201 (2013.01);
Abstract
Self-propelled vehicles that include swiveling caster wheels and independent drive wheels are disclosed. The self-propelled vehicles are selectively steered in a caster wheel steering mode or a drive wheel steering mode. The vehicle includes a steering position sensor to measure the position of the steering system. A control unit varies the rotational speed of first and second drive wheels based at least in part of the signal from the steering position sensor.