Patents by Inventor Joseph S. Marcinkiewicz

Joseph S. Marcinkiewicz 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).

  • Trajectory controller
    Patent number: 6225767
    Abstract: A system for controlling the movement of a movable member with respect to a stationary member, such as is found in a vibration welding apparatus. The system may include a force controller that converts desired force command signals into desired flux command signals and a flux controller that controls the flux in a magnetic core of the stationary assembly to effect the desired movement of the movable member. The stationary assembly may include a plurality of magnetically uncoupled E-cores of paramagnetic material.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: May 1, 2001
    Assignee: Emerson Electric Co.
    Inventors: Donald C. Lovett, Joseph S. Marcinkiewicz