Patents by Inventor Richard P. Wolf

Richard P. Wolf 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: 4307407
    Abstract: An ink jet printer for selectively depositing drops from a plurality of jet drop streams along associated print lines on a moving print receiving medium includes a print head which generates a plurality of such streams arranged in one or more rows, which rows are inclined with respect to the direction of movement of the print receiving medium. The drops in the jet drop streams are selectively charged to a plurality of charge levels. Thereafter, the drops are deflected in a direction substantially perpendicular to the direction of movement of the print receiving medium into a plurality of print trajectories or, alternatively, into a catch trajectory. An apertured catch plate in one embodiment may be utilized with an inverted print head which prints upon the bottom of the print receiving medium.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: December 22, 1981
    Assignee: The Mead Corporation
    Inventors: John W. Donahue, James F. Gottman, Richard P. Wolf