Patents by Inventor Robert J. Keller

Robert J. Keller 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: 7710108
    Abstract: An accelerator module for an electric vehicle, including a rotor actuator designed to hold a magnet in one end and to provide a drive interface with the vehicle at the other end. The accelerator module employs a Hall Effect chip configured to produce a variable voltage output in proportion to the relative locations of the magnet and the Hall Effect chip, such that when the rotor actuator is caused to rotate, the magnet is rotated across the Hall Effect chip. The Hall Effect chip includes a Hall Effect sensor, which senses differences in magnetic fields. When the magnet is passed across the Hall Effect sensor, the magnetic field will change in proportion to the amount of rotation of the rotor actuator. The variable voltage produced by the Hall Effect chip may then be translated into variable acceleration for the vehicle.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: May 4, 2010
    Assignee: Illinois Tool Works Inc.
    Inventors: Robert J. Keller, Mario Orrico
  • Publication number: 20090165745
    Abstract: An accelerator module for an electric vehicle, including a rotor actuator designed to hold a magnet in one end and to provide a drive interface with the vehicle at the other end. The accelerator module employs a Hall Effect chip configured to produce a variable voltage output in proportion to the relative locations of the magnet and the Hall Effect chip, such that when the rotor actuator is caused to rotate, the magnet is rotated across the Hall Effect chip. The Hall Effect chip includes a Hall Effect sensor, which senses differences in magnetic fields. When the magnet is passed across the Hall Effect sensor, the magnetic field will change in proportion to the amount of rotation of the rotor actuator. The variable voltage produced by the Hall Effect chip may then be translated into variable acceleration for the vehicle.
    Type: Application
    Filed: February 29, 2008
    Publication date: July 2, 2009
    Inventors: Robert J. Keller, Mario Orrico