Patents by Inventor Robert J. Van den Berg

Robert J. Van den Berg 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).

  • Screen printing device with continuous registering of rotating stencils
    Patent number: 5255598
    Abstract: Screen printing device, comprising an endless printing belt on which a web of material can be fixed temporarily, a printing belt drive device, and a number of rotary stencils driven by stencil drive devices, the printing belt drive device being coupled to the stencil drive devices at a predetermined angle presetting thereof for a synchronous movement thereof. The device also has a signal generation device which can produce a signal forming a measure for a displacement of the printing belt. One or more markings are provided on or in the printing belt and can be detected by detectors securely fixed at predetermined intervals. A comparison device compares the signal coming from the signal generation device, during a displacement of a marking on the printing belt from one detector to a next detector, with a predetermined reference signal, following which a correction device adjusts the angle presetting of one or more stencils on the basis of the comparison result of the comparison device.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: October 26, 1993
    Assignee: Stork Brabant B.V.
    Inventors: Carolus T. J. A. van Sas, Franciscus J. J. van Akkeren, Henricus J. Teeuwen, Robert J. van den Berg, Jan H. Nekkers
  • Stencil drive for a screen printing machine
    Patent number: 5213032
    Abstract: A screen printing machine comprises a frame in which one or more stencils are supported for printing a web of material fixed on a supporting belt. The stencils are each directly connected by means of a rigid coupling to the rotor of a corresponding rotary drive device. An elongated squeegee, supported near the ends of the stencil, is provided in the interior of each stencil. The drive device is provided with a central through hole running in the axial direction, for allowing through at least the end of the squeegee with radial play.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: May 25, 1993
    Assignee: Stork Brabant B.V.
    Inventors: Franciscus J. J. van Akkeren, Jan H. Nekkers, Robert J. van den Berg, Humphry G. E. Beck, Carolus T. J. A. van Sas
  • Multicolor, rotary screen printing machine and a stepped variable gear drive from a machine of this type
    Patent number: 4909143
    Abstract: Multicolor rotary screen printing machine comprising a number of parallel cylindrical stencils, pairwise rotatably suspended on both sides of a transverse beam and cooperating with a travelling printing blanket; the stencils and the blanket are driven by a common motor, mounted externally of the machine, said motor driving an intermediate shaft supported upon the frame of the machine, from which shaft the stencils are jointly driven through a stepped gear drive and hereafter individually through a series of toothed wheels and a planetary driving mechanism.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: March 20, 1990
    Assignee: Stork Brabant B.V.
    Inventors: Robert J. Van den Berg, Cornelis A. Toonen, Gerardus H. Van Mondfrans