Patents by Inventor Madison A. Culver

Madison A. Culver 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).

  • Method and apparatus for controlling the carriage of a linear motor
    Patent number: 4922142
    Abstract: The method and apparatus for controlling the travel of a carriage of a linear motor along the motor primary by providing a wedge shaped member adjacent the entrance or exit of the electromagnetic field of the primary.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: May 1, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul W. Givler, Jr., William J. Hommes, Cobern V. Peterson, Madison A. Culver