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:
Jan. 29, 2013
Filed:
Aug. 11, 2009
James A. O'brien, Ii, La Salle, MI (US);
James A. O'Brien, II, La Salle, MI (US);
Limo-Reid, Inc., Deerfield, MI (US);
Abstract
A transmission braking system includes a vehicle drive train and at least one hydraulic motor. The hydraulic motor includes a front shaft and a rear shaft. The rear shaft has an anti-rotation element. An engagement mechanism is slidably affixed to the vehicle drive train, and selectively couples with the anti-rotation element to militate against a rotation of the front and rear shafts. A four-wheel locking system is also provided. The four wheel locking system includes a shaft-coupling engagement mechanism slidably affixed to one of the hydraulic motors. The shaft-coupling engagement mechanism selectively couples with the anti-rotation elements of the motors for allowing a summing of the output torque. The transmission braking system and the four-wheel locking system may be provided in a combined system.