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:
Jun. 16, 2020
Filed:
Aug. 09, 2018
Applicant:
Ridewell Corporation, Springfield, MO (US);
Inventors:
Bruce Barton, Springfield, MO (US);
Matthew Koontz, Ozark, MO (US);
Assignee:
RIDEWELL CORPORATION, Springfield, MO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B62D 61/12 (2006.01); B60G 5/04 (2006.01); B60G 11/27 (2006.01); B60G 5/02 (2006.01);
U.S. Cl.
CPC ...
B62D 61/125 (2013.01); B60G 5/02 (2013.01); B60G 5/04 (2013.01); B60G 11/27 (2013.01); B60G 2202/152 (2013.01); B60G 2202/412 (2013.01); B60G 2204/143 (2013.01); B60G 2204/4702 (2013.01); B60G 2300/402 (2013.01); B60G 2400/61 (2013.01);
Abstract
Provided is a tandem lift auxiliary axle suspension assembly for vehicles which can be selectively raised and lowered to adjust the overall vehicle weight to axle ratio. A tandem wheel mount is connected with a pair of torsion rods to a hanger depending from the vehicle frame. An air spring mounted between the beam and the frame dampen axle movement during use. A lift spring is mounted between the hanger and the torsion rods, or other components of the assembly to selectively raise and lower the tandem axles for ground engagement as needed to decrease the weight to axle ratio.