Patents by Inventor Petrus Antonius Maria Donkers

Petrus Antonius Maria Donkers 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 of and apparatus for buffering paper sheets
    Patent number: 5951004
    Abstract: A method of assembling successively fed paper sheets subjected to a printing treatment, and groupwise delivery thereof to a following station for further treatment, is described. The paper sheets are fed by a first transport mechanism along a main transit path over a guide mechanism to a second transport mechanism situated at a distance therefrom in the processing direction. The paper sheets are engaged by the second transport mechanism for transport in the processing direction. The second transport mechanism, for the purpose of receiving each following paper sheet in the group, is temporarily driven in a direction opposite to the processing direction. The trailing part of each of the sheets returned by the second transport mechanism is deflected out of the main transit path.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: September 14, 1999
    Assignee: OCE-Technologies B.V.
    Inventors: Imre Hadfy-Kovacs, Petrus Antonius Maria Donkers