Patents by Inventor Luc Van Goethem
Luc Van Goethem 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).
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Patent number: 10907987Abstract: A system is provided for detecting a change on a moving surface, for instance in color and/or texture, comprising: at least one light generating device for generating light to be directed to the moving surface; and at least one light sensor for capturing reflected light from the moving surface; wherein the change on the moving surface, for instance in color and/or texture, is detected based on the reflected light captured by the light sensor.Type: GrantFiled: July 15, 2016Date of Patent: February 2, 2021Assignee: Laborelec CVBAInventors: Robrecht Van Velthoven, Michaël Burm, Olivier Decroupet, Luc Van Goethem, Renaud Ligot
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Publication number: 20190271567Abstract: A system is provided for detecting a change on a moving surface, for instance in color and/or texture, comprising: at least one light generating device for generating light to be directed to the moving surface; and at least one light sensor for capturing reflected light from the moving surface; wherein the change on the moving surface, for instance in color and/or texture, is detected based on the reflected light captured by the light sensor.Type: ApplicationFiled: July 15, 2016Publication date: September 5, 2019Applicant: Electrabel NVInventors: Robrecht Van Velthoven, Michaël Burm, Olivier Decroupet, Luc Van Goethem, Renaud Ligot
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Patent number: 7338156Abstract: A sheet of recording material is fed along a sheet guide defining an at least partially curved transport path until a leading edge of the sheet contacts a first of at least two alignment pins defining an alignment line and sheet feeding is continued until the leading edge contacts a second alignment pin whereby the distance of the transport path of the sheet is allowed to change and the entirety of each sheet of recording material does not contact the sheet guide during feeding of said sheet.Type: GrantFiled: November 12, 2004Date of Patent: March 4, 2008Assignee: Agfa HealthCareInventors: Paul Janssen, Francois Joos, Luc Van Goethem
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Publication number: 20050110858Abstract: A sheet of recording material is fed along a sheet guide (6) defining an at least partially curved transport path until a leading edge of the sheet contacts a first of at least two alignment pins (7a, 7b) defining an alignment line and sheet feeding is continued until the leading edge contacts a second alignment pin whereby the distance of the transport path of the sheet is allowed to change.Type: ApplicationFiled: November 12, 2004Publication date: May 26, 2005Applicant: AGFA-GEVAERTInventors: Paul Janssen, Francois Joos, Luc Van Goethem
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Patent number: 6101345Abstract: A method for achieving a pre-selected gloss in an electrographic image printing system, by choosing the appropriate combination of fusing speed and fusing temperature.As a result of the above, the homogeneity in gloss and color of one image and the homogeneity of different images, compared to each other, can be improved significantly.Type: GrantFiled: March 12, 1998Date of Patent: August 8, 2000Assignee: Agfa-GevaertInventors: Luc Van Goethem, Serge Tavernier, Marc De Niel
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Patent number: 6016420Abstract: A system is described for transporting sheet-like material. The sheet has a powder, such as electrographic toner particles, loosely attached to it at one or both sides. The particles may be laid down in an image-wise manner by an electrophotographic or direct electrographic system, such as a printer or a copier. The sheet is transported by an endless belt or by a drum. In order to preserve the location of toner particles on the sheet, and to establish correct transportation of the sheet, electrostatic charges are applied either to the sheet or the transporting member or both. As such, the sheet suitably adheres to the transport system and electrostatically loaded toner particles may even adhere better to the sheet.Type: GrantFiled: March 17, 1998Date of Patent: January 18, 2000Assignee: Agfa-GevaertInventors: Robert Janssens, Werner Heirbaut, Luc Van Goethem, Peter Baeyens, Frank Trouillard
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Patent number: 6002894Abstract: A fusing station (25) of an electrographic apparatus fixes in a single pass a duplex resinous powder color image (8, 18) to a support material in sheet-form (9) as the sheet is moved over a predetermined path (7). The station comprises two heated fixing rollers (1, 11), rotating in contact with each other, driving means to rotate the fixing rollers, pressing means for applying a meshing force between the fixing rollers, heating sources (4, 14) which have substantially identical characteristics. Both fixing rollers comprise a heat conducting core (3, 13) and a resilient covering (2, 12) which by the pressure between both rollers forms a heating nip. A symmetrical fixing operation on both sides of the sheet is provided. Hereto, the fixing rollers have a substantially identical construction, are positioned symmetrically to the path of the sheet and rotate synchronously to the advancement of the sheet.Type: GrantFiled: March 16, 1998Date of Patent: December 14, 1999Assignee: Agfa-GevaertInventors: Marc De Niel, Serge Tavernier, Luc Van Aken, Luc Van Goethem
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Patent number: 5983063Abstract: A fusing station of an electrographic apparatus fixes in a single pass a duplex resinous powder color image to a support material as the support material is moved over a predetermined path through the fusing station. The fusing station employs a symmetrical fixing operation on both sides of the support material. The fusing station applies hot air to both sides of the support material in substantially equal flows. The hot air is heated by heating sources with substantially identical operational characteristics such that the flows of hot air are heated to substantially equal temperatures on both sides of the support material.Type: GrantFiled: March 16, 1998Date of Patent: November 9, 1999Assignee: Agfa-Gevaert N.V.Inventors: Marc De Niel, Serge Tavernier, Luc Van Aken, Luc Van Goethem
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Patent number: 5852759Abstract: An electrostatographic developing device (15) including a magnet roller (16), a chamber (41) for two-component developer, a holder (22) for toner and a toner dosage reservoir (45) with an opening closed by a magnetic plug (58) of developer, and a magnet (53) for controlling such magnetic plug.Type: GrantFiled: May 19, 1997Date of Patent: December 22, 1998Assignee: Agfa-GevaertInventors: Leo Vackier, Paul Konings, Luc Van Goethem
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Patent number: 5839031Abstract: An electrostatographic developing device having a developer chamber (26), a toner chamber (21), a dosage reservoir (9) and a developer roller (13) mounted within a rotatable housing (11).Type: GrantFiled: May 14, 1997Date of Patent: November 17, 1998Assignee: Agfa-GevaertInventors: William Waterschoot, Leo Vackier, Robert Janssens, Luc Van Goethem, Eric Van Echelpoel
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Patent number: 5809383Abstract: An electrostatic developing device comprising feed passages (54, 58) for a two-component developer, a hopper (43) for adding fresh toner to the developer to maintain its concentration at a desired level, and a mixer with a vertical helical mixer screw (63) rotatable in a stationary housing (42) and a sleeve (65) surrounding the screw in the housing, an annular space (69) being left between the sleeve and the housing allowing developer transported upwardly by the mixer screw within the sleeve to return via the annular space to the lower end of the screw and then become circulated upwardly again.Type: GrantFiled: July 1, 1997Date of Patent: September 15, 1998Assignee: Agfa-Gevaert N.V.Inventors: Luc Van Goethem, Robert Janssens, William Waterschoot, Erik Van Echelpoel
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Patent number: 5768652Abstract: A method of controlling an electrophotographic imaging process wherein a two-component developer is mixed and activated to obtain a uniform distribution and triboelectric charging of the toner, by interruption of the process and carrying out extra activation and mixing cycles as a function of image area coverage and/or distribution of the image over the image field.Type: GrantFiled: October 22, 1996Date of Patent: June 16, 1998Assignee: Agfa-GevaertInventors: Robert Janssens, Luc Van Goethem, Willem Waterschoot, Chris Pattyn
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Patent number: 5597259Abstract: The present invention provides an assembly of a first panel formed with at least one insertion notch extending inwardly from at least one panel edge and a second panel carrying at least one projecting tab extending outwardly of at least one of its edge and fitting in one of the notches. The tab has on at least one of its sides a shoulder defining an edge which is located along the projecting length of the tab at a position intermediate the free edge of the tab and its base, which usually coincides with the edge of the panel from which it projects. The shoulder edge is in abutting contact with a region of the first panel adjacent the insertion notch in the first panel in which the tab fits and functions to maintain the associated edge of the second panel out of contact with the first panel so that the relative positions of the panels is determined by such abutting contact and is independent of other factors, such as the precise linearity of the panel edge.Type: GrantFiled: June 27, 1994Date of Patent: January 28, 1997Assignee: AGFA-Gevaert N. V.Inventors: Constant Bogaerts, Eric Van Echelpoel, Henri Goossen, Luc Van Goethem, Luc Van Aken
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Patent number: 5595454Abstract: The present invention provides an assembly of a first panel formed with at least one insertion slot and a second panel carrying at least one projecting tab extending outwardly of at least one of its edges and fitting in the slot. The tab has on at least one of its sides a shoulder defining an edge which is located along the projecting length of the tab at a position intermediate the free edge of the tab and its base. The shoulder edge is in abutting contact with a region of the first panel adjacent one of the insertion slot and thus maintains the associated edge of the second panel out of contact with the first panel so that the relative positions of the panels is determined by such abutting contact. The first and second panels can be positively secured together by means of an interconnection element, preferably in the form of an integral flange bent up from one of the panels, which is attached to one or both other panel by screws, bolts and nuts or similar attachment devices.Type: GrantFiled: June 15, 1994Date of Patent: January 21, 1997Assignee: Agfa-Gevaert N.V.Inventors: Constant Bogaerts, Eric Van Echelpoel, Henri Goossen, Luc Van Goethem, Luc Van Aken