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:
Dec. 12, 1995
Filed:
Oct. 06, 1993
Applicant:
Inventor:
Jean-Jacques Lasoen, Villepreux, FR;
Assignee:
Massey Ferguson S.A., Beauvais, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ;
U.S. Cl.
CPC ...
74335 ; 477906 ;
Abstract
A vehicle transmission unit is housed in a casing and includes a plurality of drive ratio paths selectively engageable by a ratio selection system. The ratio selection system includes fluid-pressure-operated actuators under the control of solenoid-operated valves to select the operative drive ratio of the transmission. The transmission also includes one or more mechanical actuator members accessible from outside the casing which can be manipulated to select one or more drive ratios of the unit in the event of the failure of the fluid-pressure-operated actuators or valves.