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:
Mar. 11, 2014
Filed:
Jun. 14, 2010
David J. Hoyle, Wistaston, GB;
Simon J. Evans, Malpas, GB;
Kevin W. Ford, Stoke-on-Trent, GB;
J.C. Bamford Excavators Limited, Uttoxeter, GB;
JCB Transmissions, Wrexham, GB;
Abstract
A transmission for a vehicle which includes a ground engaging structure driven from an output member of the transmission is disclosed, the transmission including a first input member connected to a prime mover, and a second input member drivable by the operation of a hydraulic drive motor, and the transmission being operable to transmit drive from the first input member to the output member in mechanical drive mode, and from the second input member to the output member in hydrostatic drive mode, the first input member providing a drive input from the prime mover to a mechanical drive train which includes a gear ratio selection apparatus, and for mechanical drive mode, the gear ratio selection apparatus providing for one of a plurality of alternative gear ratios to be selected by the engagement and/or disengagement of at least one power-shift clutch device, and the second input member being connected via a drive path to the output member, and there being a power-shift clutch device between the hydraulic drive motor and the second input member which is operative when the transmission is in hydrostatic drive mode, to transmit drive established by the operation of the hydraulic drive motor to the second input member.