Patents by Inventor Robert E. Davitt, Jr.

Robert E. Davitt, Jr. 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: 6108587
    Abstract: An industrial controller for injection molding machines models the injection molding machine by observing ram state in response to control variables to alert the user when a control profile may be physically unrealizable and to inhibit a learning process to avoid extreme actuation of the controlled components such as may be detrimental to later control accuracy. Simultaneous velocity and pressure control of the ram, with separate profiles, may be obtained by open-loop control of either pressure or velocity and continuous closed-loop control of the other control variable.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: August 22, 2000
    Assignee: Rockwell Technologies, LLC
    Inventors: Jeffrey A. Shearer, David M. Fort, Robert E. Davitt, Jr., Robert B. Meeker