Patents by Inventor Wilhelmus J. A. L. M. Claassen

Wilhelmus J. A. L. M. Claassen 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: 6656274
    Abstract: A device for dosing and distribution of hotmelt on a substrate is provided. The device includes substrate throughput, hotmelt supply, at least one hotmelt application position with a stencil, hotmelt distribution and a squeegee device. The hotmelt distribution includes a hotmelt dispensing nozzle. A dosing unit and drive for moving the dosing unit to and fro along said squeegee device are also provided. The hotmelt dispensing nozzle is fitted on the movable dosing unit.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: December 2, 2003
    Assignee: Stork Brabant B.V.
    Inventors: Wilhelmus J. A. L. M. Claassen, Martinus H. B. M. Rutten
  • Patent number: 6619207
    Abstract: A screen-printing device for printing a substrate, comprising at least one printing station having a removable stencil, a printing-medium feed and a squeegee device, a cleaning unit which can be displaced to and fro in the stencil at least in the longitudinal direction, feed means for feeding cleaning liquid into the stencil, and discharge means for removing printing medium and/or cleaning liquid from the stencil. The discharge means comprise a suction nozzle for sucking printing medium and/or cleaning liquid out from the stencil, which nozzle is arranged on the displaceable cleaning unit and can be moved to and fro in the longitudinal direction inside the stencil together with this unit.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: September 16, 2003
    Assignee: Stork Prints B.V.
    Inventor: Wilhelmus J. A. L. M. Claassen
  • Patent number: 6431064
    Abstract: Screen-printing device for printing a substrate (6), comprising at least one printing station (2) for a removable screen (10) and a printing-medium feed; and substrate-conveying means (4, 5) for guiding a substrate (6) past the printing station (2) in which device the following are also provided: a movement mechanism for moving the screen (10) and the substrate-conveying means (4, 5) with respect to one another between a printing position and a free position, a shield (15) which can move between an at-rest position and a shielding position, in which shielding position the shield (15) forms a barrier between the screen (10) and the substrate-conveying means (4, 5) or a substrate (6) which is being guided over these means, and liquid-discharge means (20) for discharging liquids which are deposited on a shield (15) which is located in the shielding position.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: August 13, 2002
    Assignee: Stork Brabant B.V.
    Inventor: Wilhelmus J. A. L. M. Claassen
  • Publication number: 20020076496
    Abstract: A device for dosing and distribution of hotmelt on a substrate is provided. The device includes substrate throughput means, hotmelt supply means, at least one hotmelt application position with a stencil, hotmelt distribution means and a squeegee device. The hotmelt distribution means includes a hotmelt dispensing nozzle. A dosing unit and drive means for moving the dosing unit to and fro along said squeegee device are also provided. The hotmelt dispensing nozzle is fitted on the movable dosing unit.
    Type: Application
    Filed: October 29, 2001
    Publication date: June 20, 2002
    Applicant: Stork Brabant, B.V.
    Inventors: Wilhelmus J.A.L.M. Claassen, Martinus H.B.M. Rutten
  • Patent number: 6101936
    Abstract: A squeegee for a screen-printing machine, in particular a rotary screen-printing machine, comprises a supporting part, which can in principle be attached permanently to the frame of a screen-printing machine, as well as a removable part, which is detachably connected to the supporting part. The supporting part is designed as a rigid bar which extends in the longitudinal direction of the squeegee. The removable part is displaceable in the longitudinal direction with respect to the supporting part. The removable part forms the active squeegee part. The supporting part may be of rigid design, while the removable part may be of lightweight design. The removable part comprises in particular those components which regularly have to be removed from the screen-printing machine.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: August 15, 2000
    Assignee: Stork Brabant B.V.
    Inventor: Wilhelmus J.A.L.M. Claassen
  • Patent number: 5692444
    Abstract: The invention relates to a cleaning device for use in cleaning a paste supply system of a rotary screen-printing machine, which paste supply system at least comprises a pump as well as a paste suction line and a paste pressure line, while the cleaning device at least comprises a cleaning agent container, for liquid cleaning agent, by means of which the paste suction line and the paste pressure line can be placed in liquid communication for the purpose of interaction between the paste supply system and the cleaning device, the cleaning device being characterized in that flow-altering means are present. Preferably, the flow-altering means which impart to the cleaning agent, as it flows through the cleaning device and the paste supply system interacting therewith, a direction of flow at least over part of the paste suction line and/or the paste pressure line which has both an axial and a radially outwardly directed velocity component.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: December 2, 1997
    Assignee: Stork Brabant B.V.
    Inventors: Wilhelmus J.A.L.M. Claassen, Wilhelmus J.T. Veugelers, Henricus G.M. Kempen