Patents by Inventor Wim Libaers

Wim Libaers 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: 9606475
    Abstract: The printing method includes the steps of (1) Transferring after charging a charged liquid developer dispersion from a surface of the first member optionally via the at least one further member to a substrate, wherein excess liquid developer dispersion remains present on the first member after the transfer; (2) Treating the excess liquid developer dispersion so as to facilitate its removal from the first member (3) removing, at least substantially, the treated excess liquid developer dispersion from the surface of the first member using a removal device, and (4) upon interrupting or terminating the printing, removing material adhered to the removal device.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: March 28, 2017
    Assignee: Xeikon IP B.V.
    Inventors: Werner Jozef Johan Op de Beeck, Wim Libaers, Lode Erik Dries Deprez
  • Patent number: 9500998
    Abstract: Disclosed is a liquid toner dispersion which has a relative low shear viscosity between 1.25 and 225 and a relative conductivity between 0.3 and 30. The liquid toner dispersion includes toner particles in a non-polar carrier liquid, as well as a dispersing agent. This liquid toner dispersion is used in a digital printing process including adding dispersing agent during recycling of excess liquid toner dispersion remaining on a development member after patterned transfer of liquid toner dispersion to the imaging member.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 22, 2016
    Assignee: Xeikon IP B.V.
    Inventors: Lode Erik Dries Deprez, Wim Libaers, Werner Jozef Johan Op de Beeck, Kurt Gustaaf Maria Mampaey, Mathias Jo Bert van Remortel
  • Publication number: 20160195834
    Abstract: The printing method comprises the steps of (1) Transferring after charging a charged liquid developer dispersion from a surface of the first member optionally via the at least one further member to a substrate, wherein excess liquid developer dispersion remains present on the first member after said transfer; (2) Treating the excess liquid developer dispersion so as to facilitate its removal from the first member (3) removing, at least substantially, the treated excess liquid developer dispersion from the surface of the first member by means of a removal device, and (4) upon interrupting or terminating the printing, removing material adhered to the removal device.
    Type: Application
    Filed: September 4, 2014
    Publication date: July 7, 2016
    Inventors: Werner Jozef Johan Op de Beeck, Wim Libaers, Lode Erik Dries Deprez
  • Patent number: 9285715
    Abstract: A method for the reduction of caking of excess liquid developer dispersion that remains present on the surface of a member after transfer of liquid developer dispersion from one member to another member in a digital printing apparatus, comprising the step of adding a dispersing composition to the excess liquid developer dispersion, wherein the dispersing composition comprises a dispersing agent.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: March 15, 2016
    Assignee: Xeikon IP BV
    Inventors: Dirk Marcel Constant Gijsbrechts, Werner Jozef Johan Op De Beeck, Wim Libaers, Lode Erik Dries Deprez
  • Publication number: 20160041506
    Abstract: Disclosed is a liquid toner dispersion which has a relative low shear viscosity between 1.25 and 225 and a relative conductivity between 0.3 and 30. The liquid toner dispersion includes toner particles in a non-polar carrier liquid, as well as a dispersing agent. This liquid toner dispersion is used in a digital printing process including adding dispersing agent during recycling of excess liquid toner dispersion remaining on a development member after patterned transfer of liquid toner dispersion to the imaging member.
    Type: Application
    Filed: April 4, 2014
    Publication date: February 11, 2016
    Applicant: Xeikon IP B.V.
    Inventors: Lode Erik Dries Deprez, Wim Libaers, Werner Jozef Johan Op de Beeck, Kurt Gustaaf Maria Mampaey, Mathias Jo Bert van Remortel
  • Patent number: 9164412
    Abstract: A digital printing apparatus comprising a developing roller (102) and an image carrying roller (101); the developing roller (102) being arranged to transfer liquid toner (107) onto the image carrying roller (101) in accordance with a charge pattern; an upstream charger (111) upstream of an area (108) of rotational contact between the developing roller (102) and the image carrying roller (101); a downstream discharger (112, 122, 132) downstream of the area (108); a sensor (200) downstream of the area (108) to detect a property representative of the charge of a liquid toner residue; and a controller (210) to receive sensor data from the sensor (200) and to provide a control signal to control the downstream discharger.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: October 20, 2015
    Assignee: Xeikon IP BV
    Inventors: Nick Horemans, William Constant Waterschoot, Wim Libaers, Lode Erik Dries Deprez, Jürgen Norbert Bart Devlieghere
  • Publication number: 20140301755
    Abstract: A digital printing apparatus comprising a developing roller (102) and an image carrying roller (101); the developing roller (102) being arranged to transfer liquid toner (107) onto the image carrying roller (101) in accordance with a charge pattern; an upstream charger (111) upstream of an area (108) of rotational contact between the developing roller (102) and the image carrying roller (101); a downstream discharger (112, 122, 132) downstream of the area (108); a sensor (200) downstream of the area (108) to detect a property representative of the charge of a liquid toner residue; and a controller (210) to receive sensor data from the sensor (200) and to provide a control signal to control the downstream discharger.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: XEIKON IP BV
    Inventors: Nick Horemans, William Constant Waterschoot, Wim Libaers, Lode Erik Dries Deprez, Jürgen Norbert Bart Devlieghere
  • Publication number: 20140301756
    Abstract: A method for the reduction of caking of excess liquid developer dispersion that remains present on the surface of a member after transfer of liquid developer dispersion from one member to another member in a digital printing apparatus, comprising the step of adding a dispersing composition to the excess liquid developer dispersion, wherein the dispersing composition comprises a dispersing agent.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: XEIKON IP BV
    Inventors: Dirk Marcel Constant Gijsbrechts, Werner Jozef Johan Op De Beeck, Wim Libaers, Lode Erik Dries Deprez