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. 16, 2008
Filed:
Jul. 08, 2005
Filippo Baldascini, Orbassano, IL;
Dario Caenazzo, Orbassano, IL;
Domenico Mesiti, Orbassano, IL;
Gianluigi Pregnolato, Orbassano, IL;
Filippo Baldascini, Orbassano, IL;
Dario Caenazzo, Orbassano, IL;
Domenico Mesiti, Orbassano, IL;
Gianluigi Pregnolato, Orbassano, IL;
CRF Societa Consortile per Azioni, Turin, IT;
Abstract
A control system including: first and second actuator devices for controlling the engagement of first and second sets of gears by selection and engagement movements, respectively; a first solenoid valve arranged to put the first or the second actuator device alternatively into communication with a fluid supply; a second solenoid valve arranged to control the selection movements of the actuator device which is in communication with the fluid supply; a distributor interposed between the fluid supply and the actuator devices and displaceable under the control of the first solenoid valve between a first position in which it puts the fluid supply into communication with the first actuator device and a second position in which it puts the fluid supply into communication with the second actuator device; third and fourth proportional pressure solenoid valves arranged to control the engagement movements of the actuator device which is in communication with the fluid supply.