Patents by Inventor Graham F. Elvis

Graham F. Elvis 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).

  • Load characterization in servo drive systems
    Patent number: 8078445
    Abstract: Systems and methods that characterizes a load as a function of position/movement of mechanical components—as induced by such load in the servo-drive system. By running a plurality of motion profiles, corresponding torque/forces that generate such motions can be calculated and readily represented (e.g., as a table) in form of a position dependent load. In addition, a parsing component can decompose or break up a load (which generates a desired motion) to its subparts or constituent values for further simulation analysis.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: December 13, 2011
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: John Pritchard, Graham F. Elvis, Gurdial Singh
  • Method and apparatus for sizing a drive unit for multiple applications with varying voltage requirements
    Patent number: 7966168
    Abstract: A method for sizing components of a motor control system powered by a power supply includes receiving an upper nominal line voltage parameter for the power supply. A lower nominal line voltage parameter for the power supply is received. A first performance measure of the motor control system is determined based on the upper nominal line voltage parameter. A second performance measure of the motor control system is determined based on the lower nominal line voltage parameter. Components suitable for use in the motor control system are identified based on at least the first and second performance measures.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: June 21, 2011
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Graham F. Elvis, Timothy J. Martin
  • LOAD CHARACTERIZATION IN SERVO DRIVE SYSTEMS
    Publication number: 20100082310
    Abstract: Systems and methods that characterizes a load as a function of position/movement of mechanical components—as induced by such load in the servo-drive system. By running a plurality of motion profiles, corresponding torque/forces that generate such motions can be calculated and readily represented (e.g., as a table) in form of a position dependent load. In addition, a parsing component can decompose or break up a load (which generates a desired motion) to its subparts or constituent values for further simulation analysis.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
    Inventors: John Pritchard, Graham F. Elvis, Gurdial Singh