Patents by Inventor Dirk De Ruijter

Dirk De Ruijter 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: 7837287
    Abstract: A receiver table (1) is provided for holding a receiver in a digital printer using a shuttle (2) carrying the printheads (3), e.g. an ink-jet printer, which is divided in small table segments (5) of which height and orientation can be adjusted. By adjusting the segments (5) the table (1) can be deformed to obtain a constant receiver-printhead distance even if the guidance of the shuttle (2) has deviations or exhibits bending during shuttling. Table segments (5) are preferably mounted on a deformable table support (13). The receiver-printhead “throw distance” can be calibrated by measuring the distance profile and adjusting adjustments screws or bolts to align the table segments (5) to the ideal printing distance.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: November 23, 2010
    Assignee: Agfa Graphics NV
    Inventors: Bart Verhoest, Luciaan De Coux, Dirk De Ruijter
  • Patent number: 7744210
    Abstract: A step-wise medium transport system is provided having high accuracy for transporting recording media in a digital printer, the medium is transported using accurately moving tables to which the medium is attached during printing steps the working area of the medium, on which the printing is done by the printer, is at all times fully supported by a static table avoiding disturbances.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: June 29, 2010
    Assignee: Agfa Graphics NV
    Inventors: Bart Verhoest, Dirk De Ruijter, Luciaan De Coux
  • Publication number: 20090284575
    Abstract: A step-wise medium transport system is provided having high accuracy for transporting recording media in a digital printer,—the medium is transported using accurately moving tables to which the medium is attached—during printing steps the working area of the medium, on which the printing is done by the printer, is at all times fully supported by a static table avoiding disturbances.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 19, 2009
    Inventors: Bart Verhoest, Dirk De Ruijter, Luciaan De Coux
  • Publication number: 20090051715
    Abstract: A receiver table (1) is provided for holding a receiver in a digital printer using a shuttle (2) carrying the printheads (3), e.g. an ink-jet printer, which is divided in small table segments (5) of which height and orientation can be adjusted. By adjusting the segments (5) the table (1) can be deformed to obtain a constant receiver-printhead distance even if the guidance of the shuttle (2) has deviations or exhibits bending during shuttling. Table segments (5) are preferably mounted on a deformable table support (13). The receiver-printhead “throw distance” can be calibrated by measuring the distance profile and adjusting adjustments screws or bolts to align the table segments (5) to the ideal printing distance.
    Type: Application
    Filed: May 5, 2006
    Publication date: February 26, 2009
    Inventors: Bart Verhoest, Luciaan De Coux, Dirk De Ruijter
  • Patent number: 6663222
    Abstract: An ink jet printer including a first and a second nozzle array, arranged one after another in the printing direction, wherein the second nozzle array is movably arranged in the printer for being displaced so that the number of nozzles in the second nozzle array experience a displacement having a component in a direction orthogonal to the printing direction.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: December 16, 2003
    Assignee: Agfa-Gevaert
    Inventors: Bart Verhoest, Dirk De Ruijter, Hilbrand Van den Wyngaert, Bart Verlinden
  • Patent number: 6588954
    Abstract: An ink jet printer wherein a belt transports an image receiving member past a printhead is equipped with guiding means (18) for creating a bulge, d, in the belt, extending towards the ink ejecting means, thus keeping the “throw distance” constant and/or with rollers for moving the belt, one of the rollers having a flange and being positioned so as to force the belt agains the flange.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: July 8, 2003
    Assignee: Agfa-Gevaert
    Inventors: Bart Verhoest, Hilbrand Vanden Wyngaert, Dirk De Ruijter, Bart Verlinden
  • Patent number: 6554398
    Abstract: An ink-jet printer includes pagewidth printheads mounted in a frame, wherein the printheads are coupled to mechanical devices for aligning the printheads with respect to each other, with respect to an edge of the image receiving substrate, or with respect to both. The printer may include devices for sensing the possible misalignment, coupled to a computer for automatically aligning the printheads.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: April 29, 2003
    Assignee: Agfa-Gevaert
    Inventors: Hilbrand Vanden Wyngaert, Bart Verhoest, Dirk De Ruijter, Bart Verlinden
  • Publication number: 20020126169
    Abstract: An ink-jet printer includes pagewidth printheads mounted in a frame, wherein the printheads are coupled to mechanical devices for aligning the printheads with respect to each other, with respect to an edge of the image receiving substrate, or with respect to both. The printer may include devices for sensing the possible misalignment, coupled to a computer for automatically aligning the printheads.
    Type: Application
    Filed: February 21, 2002
    Publication date: September 12, 2002
    Inventors: Hilbrand Vanden Wyngaert, Bart Verhoest, Dirk De Ruijter, Bart Verlinden
  • Publication number: 20020080210
    Abstract: An ink jet printer including a first and a second nozzle array, arranged one after another in the printing direction, wherein the second nozzle array is movably arranged in the printer for being displaced so that the number of nozzles in the second nozzle array experience a displacement having a component in a direction orthogonal to the printing direction.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 27, 2002
    Inventors: Bart Verhoest, Dirk De Ruijter, Hilbrand Van den Wyngaert, Bart Verlinden
  • Patent number: 5678118
    Abstract: An apparatus for the wet processing of photographic sheet material comprises at least one treatment vessel (12, 12', 12") having upper and lower openings (17, 18), one of the openings constituting a sheet material inlet and the other of the openings constituting a sheet material outlet, the inlet and outlet defining there-between a substantially vertical sheet material path (20) through the vessel. The vessel comprises a pair of rotatable rollers (28, 30) biased towards each other to define a nip (36) there-between through which the sheet material path extends. The apparatus is characterised in that the end faces of one roller lie in substantially the same plane as the end faces of the other roller and each roller is in sealing contact with a stationary sealing means (38) having a continuous contact line (52) which extends along the length of each roller (28, 30) and over the end faces of each roller, at least on the fluid side of said nip (36).
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: October 14, 1997
    Assignee: Agfa-Gevaert N.V.
    Inventors: Patrick Van den Bergen, Luc De Roeck, Bart Verhoest, Dirk de Ruijter
  • Patent number: 5378340
    Abstract: Silver is recovered from solutions containing the same, e.g. photographic processing solutions, in an electrolytic cell including an anode, a removable cathode and electrical connectors therefore on the exterior of the cell. The removable cathode is circular in configuration and encircles the anode. On the interior of the cell, electrical contact is made around the upper end of the cathode by means of an annular contact surface providing a large area of contact and minimizing the risk of occurrence of a corrosive connection. The upper end of the cathode is shaped for deformation, preferably in the form of castellations, and is clampingly pressed against the contact surface by a frusto-conical extension of the lid of the cell. The lid fits in threadwise engagement within the opening to the cell through which the cathode can be removed.
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: January 3, 1995
    Assignee: AGVA-Gevaert N. V.
    Inventors: Werner Van de Wynckel, Dirk de Ruijter, Benny Jansen, Frank Michiels
  • Patent number: 5370781
    Abstract: An electrode for use in an electrolytic cell is disclosed, comprising a generally flat sheet (50) of flexible material having at least one electrically conductive surface. Upper and lower securing means are provided each comprising a tongue (55a,b) formed on one side edge (53) of the sheet (50) and a slot (56a,b) associated with an opposite side edge (54) of the sheet (50). The tongues and slots co-operate to enable the sheet (50) to be folded into and secured in an open frusto-conical configuration. This arrangement gives ease of removal from an electrolytic cell after use and advantages of requiring less storage and transport space in a flat configuration.
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: December 6, 1994
    Assignee: Agfa-Gevaert N.V.
    Inventors: Werner Van de Wynckel, Dirk de Ruijter, Benny Jansen, Frank Michiels