Patents by Inventor Franz Amberger

Franz Amberger 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).

  • Locking device for a gearshift lever
    Patent number: 4942937
    Abstract: In an automatic transmission, a sensor switch is provided to monitor movement of the gearshift lever from the park position. If the gearshift lever is moved out of the park position when the ignition is off and/or the brake is not activated, the switch responds to such conditions by exciting a locking device which inhibits further movement of the gearshift lever from the park position. The locking device requires current only when the gearshift lever is being moved from the park position.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: July 24, 1990
    Assignee: Audi AG
    Inventors: Franz Amberger, Wilhelm Bois
  • Gearshift lever interlock
    Patent number: 4930609
    Abstract: A gearshift lever interlock is provided that allows movement of the gearshift lever of an automatic transmission from the neutral or park positions only if the brake pedal is actuated. The improved locking device locks the gearshift lever in the park position in the event of a malfunctioning electrical locking system but will not lock the gearshift lever in the neutral position. A mechanical release is provided to override the electrical gearshift lever interlock sytem.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: June 5, 1990
    Assignee: Audi AG
    Inventors: Wilhelm Bois, Franz Amberger, Josef Buchl