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:
Feb. 01, 2022
Filed:
Dec. 29, 2020
Applicant:
The Hilliard Corporation, Elmira, NY (US);
Inventors:
John Michael Hasson, Jr., Gillett, PA (US);
Howard J. Knickerbocker, Cameron Mills, NY (US);
James E. Palmer, Elmira, NY (US);
Assignee:
The Hilliard Corporation, Elmira, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 48/11 (2012.01); F16H 48/34 (2012.01); F16H 48/20 (2012.01); F16H 48/10 (2012.01);
U.S. Cl.
CPC ...
F16H 48/34 (2013.01); F16H 48/11 (2013.01); F16H 2048/104 (2013.01); F16H 2048/106 (2013.01); F16H 2048/202 (2013.01);
Abstract
An on-demand four-wheel drive system includes a differential for the rear axle, a differential for the front axle, and a center differential connecting to the front and rear axle differentials. All three of the differentials contain a bi-directional overrunning roller clutch to enable locking of their respective outputs. The clutches provide a superior on-demand four-wheel drive system that distributes power to each drive wheel to propel the vehicle.