Patents by Inventor Attillio Porta

Attillio Porta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8429993
    Abstract: The control apparatus comprises, in its version intended for a double-clutch transmission with six or seven forward gears and one reverse gear, a first shift fork for engaging the first gear or the third gear, respectively, a second shift fork for engaging the reverse gear or the fifth gear, respectively, a first hydraulic actuator arranged to control the movement of the first shift fork, a second hydraulic actuator arranged to control the movement of the second shift fork, a selection slide valve which can be moved into a first operating position in which the first hydraulic actuator is selected and a second operating position in which the second hydraulic actuator is selected, a pilot solenoid valve for controlling the movement of the slide valve between the first and second operating positions, and first and second gear shift solenoid valves for controlling the supply of fluid to the hydraulic actuator each time selected by the slide valve or the connection of said actuator with a tank.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: April 30, 2013
    Assignee: C.R.F. Societa Consortile Per Azioni
    Inventors: Marco Garabello, Giancarlo Osella, Attillio Porta, Gianluigi Pregnolato, Sara Sottano
  • Publication number: 20090151495
    Abstract: The control apparatus comprises, in its version intended for a double-clutch transmission with six or seven forward gears and one reverse gear, a first shift fork for engaging the first gear or the third gear, respectively, a second shift fork for engaging the reverse gear or the fifth gear, respectively, a first hydraulic actuator arranged to control the movement of the first shift fork, a second hydraulic actuator arranged to control the movement of the second shift fork, a selection slide valve which can be moved into a first operating position in which the first hydraulic actuator is selected and a second operating position in which the second hydraulic actuator is selected, a pilot solenoid valve for controlling the movement of the slide valve between the first and second operating positions, and first and second gear shift solenoid valves for controlling the supply of fluid to the hydraulic actuator each time selected by the slide valve or the connection of said actuator with a tank.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 18, 2009
    Applicant: C.R.F. SOCIETA' CONSORTILE PER AZIONI
    Inventors: Marco Garabello, Giancarlo Osella, Attillio Porta, Gianluigi Pregnolato, Sara Sottano