Patents by Inventor Joseph J. Student, deceased

Joseph J. Student, deceased 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).

  • Evacuated printing platen
    Patent number: 4326656
    Abstract: Printing platen for positioning a recording medium such as paper which includes an evacuated chamber having a slotted face plate for attracting, holding and guiding the paper. Slots are arranged parallel to each other and the direction of paper travel, and the vacuum attraction causes temporary deformation of the paper so that the slots can effect guiding and tension on the paper during advancement. Effective platen length can be varied to accommodate different paper widths.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: April 27, 1982
    Assignee: International Business Machines
    Inventors: Floyd A. Gregory, Donald F. Manning, William Oranchak, Joseph J. Student, deceased