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:
Aug. 28, 2018
Filed:
Dec. 30, 2015
Applicant:
Hydro-gear Limited Partnership, Sullivan, IL (US);
Inventor:
Thomas J. Langenfeld, Sullivan, IL (US);
Assignee:
Hydro-Gear Limited Partnership, Sullivan, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 61/4157 (2010.01); B60T 1/06 (2006.01); B60T 7/04 (2006.01); B60K 3/00 (2006.01); B62D 11/04 (2006.01); F02D 13/04 (2006.01);
U.S. Cl.
CPC ...
B60T 1/062 (2013.01); B60K 3/00 (2013.01); B60T 7/04 (2013.01); B62D 11/04 (2013.01); F02D 13/04 (2013.01); F16H 61/4157 (2013.01);
Abstract
A hydraulic drive unit for use in a vehicle or other application incorporates a motor disposed in a housing and connected to a pump through a porting system, and an output shaft driven by the motor. A mechanical brake is used to brake the motor, while a valve provides a hydraulic brake for preventing flow between the hydraulic motor and the hydraulic pump. A brake actuator is connected to both the mechanical brake and the hydraulic brake, whereby actuation of the brake actuator causes both the mechanical brake and the hydraulic brake to be actuated.