Patents by Inventor Lawrence D. Knox

Lawrence D. Knox 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: 8076877
    Abstract: An electrically commutated actuator and control system has a stator and a shaft that is movable with respect to the stator. A plurality of magnets movable with the shaft provide a first magnetic flux, and an electric current in at least one coil defined on the stator provides a second magnetic flux. The second magnetic flux is controlled in response to the first input so that the second magnetic flux has a predetermined phase with respect to the first magnetic flux. The second magnetic flux is controlled in response to the second input so that the phase of the second magnetic flux with respect to the first magnetic flux varies from the predetermined phase.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: December 13, 2011
    Inventors: David G. Oteman, James A. Parison, Lawrence D. Knox
  • Publication number: 20110160959
    Abstract: An active suspension system for a vehicle including elements for developing and executing a trajectory plan responsive to the path on which the vehicle is traveling. The system may include a location system for locating the vehicle, and a system for retrieving a road profile corresponding to the vehicle location.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Inventors: Lawrence D. Knox, Neal M. Lackritz, James A. Parison, William R. Short
  • Patent number: 7878510
    Abstract: An active suspension system for a vehicle including elements for developing and executing a trajectory plan responsive to the path on which the vehicle is traveling. The system may include a location system for locating the vehicle, and a system for retrieving a road profile corresponding to the vehicle location.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: February 1, 2011
    Assignee: Bose Corporation
    Inventors: Lawrence D. Knox, Neal M. Lackritz, James A. Parison, William R. Short
  • Publication number: 20100097017
    Abstract: An electrically commutated actuator and control system has a stator and a shaft that is movable with respect to the stator. A plurality of magnets movable with the shaft provide a first magnetic flux, and an electric current in at least one coil defined on the stator provides a second magnetic flux. The second magnetic flux is controlled in response to the first input so that the second magnetic flux has a predetermined phase with respect to the first magnetic flux. The second magnetic flux is controlled in response to the second input so that the phase of the second magnetic flux with respect to the first magnetic flux varies from the predetermined phase.
    Type: Application
    Filed: October 17, 2008
    Publication date: April 22, 2010
    Inventors: David G. Oteman, James A. Parison, Lawrence D. Knox
  • Patent number: 7434816
    Abstract: An active suspension system for a vehicle including elements for developing and executing a trajectory plan responsive to the path on which the vehicle is traveling. The system may include a location system for locating the vehicle, and a system for retrieving a road profile corresponding to the vehicle locations.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: October 14, 2008
    Assignee: Bose Corporation
    Inventors: Lawrence D. Knox, Neal M. Lackritz, James A. Parison, William R. Short
  • Patent number: 7302825
    Abstract: A suspension testing or demonstrating apparatus includes a first section of track having a first undulation that displaces a wheel of the vehicle by a first predetermined amount when the wheel traverses at least a portion of the first undulation. A second section of track is positioned proximate to the first section of track such that the wheel traverses the second section of track after traversing the first section of track. The second section of track includes a second undulation that displaces the wheel of the vehicle by a second predetermined amount when the wheel traverses at least a portion of the second undulation.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: December 4, 2007
    Assignee: Bose Corporation
    Inventor: Lawrence D. Knox
  • Patent number: 7195250
    Abstract: An active suspension system for a vehicle including elements for developing and executing a trajectory plan responsive to the path on which the vehicle is traveling. The system may include a location system for locating the vehicle, and a system for retrieving a road profile corresponding to the vehicle location.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: March 27, 2007
    Assignee: Bose Corporation
    Inventors: Lawrence D. Knox, Neal M. Lackritz, James A. Parison, William R. Short
  • Publication number: 20040251643
    Abstract: An active suspension system for a vehicle including elements for developing and executing a trajectory plan responsive to the path on which the vehicle is traveling. The system may include a location system for locating the vehicle, and a system for retrieving a road profile corresponding to the vehicle location.
    Type: Application
    Filed: July 28, 2003
    Publication date: December 16, 2004
    Inventors: Lawrence D. Knox, Neal M. Lackritz, James A. Parison, William R. Short
  • Publication number: 20040046335
    Abstract: An active suspension system for a vehicle including elements for developing and executing a trajectory plan responsive to the path on which the vehicle is traveling. The system may include a location system for locating the vehicle, and a system for retrieving a road profile corresponding to the vehicle location.
    Type: Application
    Filed: February 18, 2003
    Publication date: March 11, 2004
    Inventors: Lawrence D. Knox, Neal M. Lackritz, James A. Parison, William R. Short
  • Patent number: 6364078
    Abstract: A wheel assembly for a vehicle. The wheel assembly includes a brake assembly which defines the outer radius of an annular region about the axis of the wheel assembly and a damping mass assembly for damping vertical vibrations of the wheel assembly, located within the annular region.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: April 2, 2002
    Assignee: Bose Corporation
    Inventors: Jams A. Parison, Lawrence D. Knox
  • Patent number: 4942333
    Abstract: A shadow mask adapted for tensioned mounting in a flat faced color CRT is characterized by having a pattern of slits in the border regions of the mask in order to provide uniform distribution of tensile stresses across the mask when mounted in the CRT, resulting in improved mechanical and thermal behavior, and enabling the separate fabrication of the mask and display screen of the CRT.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: July 17, 1990
    Assignee: North American Philips Corporation
    Inventor: Lawrence D. Knox
  • Patent number: 4858818
    Abstract: A method is provided for use with non-contacting torque sensors. Many torque sensors use a sheet of magnetostrictive material wrapped about the shaft whose torque is to be measured. The methods used to wrap and affix the sheet of magnetostrictive material induce a prestress into the sheet, which leads to early saturation of the magnetostrictive material. The prestress diminishes the useful range of the torque sensor. As a solution, a method is provided for bonding a magnetostrictive material sheet to a shaft while minimizing stress of the magnetostrictive sheet. By bending a magnetostrictive material sheet and a carrier sheet about the mandrel and bonding the sheets together at a first preselected temperature, cooling them to form a cylinder having a magnetostrictive material outer layer and a carrier inner layer, and bonding the cylinder to a shaft at a second predetermined temperature, the stresses induced in the magnetostrictive sheet are minimized.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: August 22, 1989
    Assignee: Caterpillar Inc.
    Inventors: Lawrence D. Knox, Izrail Tsals