Patents by Inventor James Calvin Walsh

James Calvin Walsh 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).

  • Ink jet nozzle with tilted arrangement
    Patent number: 4048639
    Abstract: Method of improving mark alignment by causing substantially simultaneous impact on a recording medium of drops issuing as a series from an ink jet nozzle moving relative to the recording medium, by successively decreasing the deflection of each drop in the series and positioning the nozzle with respect to the recording surface to alter the respective path lengths of the drops such that the first and last drops of the series reach the recording member at approximately the same time.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: September 13, 1977
    Assignee: International Business Machines Corporation
    Inventors: James Calvin Walsh, Joseph Townsend Wilson, III, Bruce Allen Wolfe