Patents by Inventor Markus Keller

Markus Keller 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).

  • Publication number: 20250222700
    Abstract: A processing unit for an inkjet printing device is described that is designed to calibrate the ink ejection of the individual nozzles of the printing device within the scope of a uniformity test, and to permanently deactivate nozzles that had failed within the scope of the uniformity test. An especially stable printing operation of the printing device can thus be ensured.
    Type: Application
    Filed: January 9, 2025
    Publication date: July 10, 2025
    Inventors: Matthias Kage, Markus Keller, Benno Petschik
  • Patent number: 12320546
    Abstract: The invention is an apparatus having a protective envelope which is designed and constructed to envelope at least one room region, such that the protective envelope is able to separate the at least one room region from an environment immediately surrounding the protective envelope, and use thereof. Methods for operating a production engineering unit under cleanroom conditions and for creating and operating a virus-free and cross-contamination free room region surrounded by a protective envelope for accommodating persons and/or objects subject to quarantine. The invention has a protective envelope with at least two layers separated by a spacer layer, that is flow-permeable.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: June 3, 2025
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN, FORSCHUNG E.V.
    Inventors: Udo Gommel, Frank Bürger, Daniel Falch, Miroslav Kopcok, Markus Keller, Viola Hoffmann
  • Publication number: 20240372339
    Abstract: The disclosure relates to a gas insulated electric apparatus, which includes an enclosure, an electric high voltage appliance arranged inside the enclosure and a permeation barrier arranged within the enclosure and circumferentially surrounding the electric high voltage appliance, whereby the enclosure contains an insulation gas including at least 70% by volume of CO2 and including an elevated and pre-determined operating gas pressure level, and the permeation barrier includes a permeation layer surrounded on at least one side by a flow promoter layer and/or a surface activation and/or primer layer.
    Type: Application
    Filed: August 22, 2022
    Publication date: November 7, 2024
    Inventors: Markus Keller, Urs Kruesi, Loic Fave, Johannes Hengstler, Moritz Boehm, Roman Kochetov
  • Publication number: 20240237656
    Abstract: The invention relates to a transfer device for loading and/or unloading a food treatment unit (1a, 1b), with a movable transfer trolley (3) which has a support device (20, 22) for at least one loading rack (27, 28) or for at least one product carrier, with a drive (19) for moving the transfer trolley (3), and with at least one actuator (21, 23) arranged on the transfer trolley (3), which actuator is configured to move the loading rack (27, 28) or the product carrier into a receiving device (25, 26), located on a first side (13) of the transfer trolley (3), of the food treatment unit (1a, 1b) and to remove it therefrom. The task of the invention is to make the loading and/or unloading of a food treatment unit (1a, 1b) particularly flexible, time-efficient and cost-efficient.
    Type: Application
    Filed: April 14, 2022
    Publication date: July 18, 2024
    Applicant: MIWE Michael Wenz GmbH
    Inventors: Markus Keller, Andreas Thees, Ronny Leppich-Rudloff
  • Patent number: 12011923
    Abstract: A controller for a print head of an inkjet printing device is described that is configured to generate a virtual timing signal during a printing pause of the printing device, and to use the virtual timing signal for the generation of pre-ejection pulses in order to produce a reliable regeneration of the nozzles of the print head during the printing pause.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: June 18, 2024
    Assignee: Canon Production Printing Hodling B.V.
    Inventors: Markus Keller, Martin Wilhelm, Martin Stockmar, Florian Hitzlsperger, Christoph Rummelsberger
  • Publication number: 20240066864
    Abstract: Provided is a device for controlling the printing of a print image with a nozzle of an inkjet printing device. The device is configured to—given the presence of a relatively long printing pause of the nozzle insert one or more print image-independent pre-ejection pulse phases, followed by a print image-dependent pre-ejection pulse phase, between the printing of two successive dots, in order to efficiently and reliably increase the print quality of the printing device.
    Type: Application
    Filed: August 24, 2023
    Publication date: February 29, 2024
    Inventors: Markus Keller, Christoph Rummelsberger, Martin Wilhelm, Timo Sponer
  • Patent number: 11660859
    Abstract: In the print data for a nozzle of a printer, white dots are replaced by pre-ejection pulses. One or more repetitions of the pre-ejection pulses may be inserted into the print data, depending on the actual print speed of the printer, to determine print speed-dependent print data with which the nozzle is activated to print a print image with high print quality.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: May 30, 2023
    Assignee: Canon Production Printing Holding B.V.
    Inventors: Martin Stockmar, Timo Sponer, Martin Wilhelm, Robert Baumgartner, Christoph Rummelsberger, Markus Keller
  • Publication number: 20230093603
    Abstract: The invention is an apparatus having a protective envelope which is designed and constructed to envelope at least one room region, such that the protective envelope is able to separate the at least one room region from an environment immediately surrounding the protective envelope, and use thereof. Methods for operating a production engineering unit under cleanroom conditions and for creating and operating a virus-free and cross-contamination free room region surrounded by a protective envelope for accommodating persons and/or objects subject to quarantine. The invention has a protective envelope with at least two layers separated by a spacer layer, that is flow-permeable.
    Type: Application
    Filed: October 7, 2020
    Publication date: March 23, 2023
    Inventors: Udo GOMMEL, Frank BÜRGER, Daniel FALCH, Miroslav KOPCOK, Markus KELLER, Viola HOFFMANN
  • Publication number: 20220143974
    Abstract: A controller for a print head of an inkjet printing device is described that is configured to generate a virtual timing signal during a printing pause of the printing device, and to use the virtual timing signal for the generation of pre-ejection pulses in order to produce a reliable regeneration of the nozzles of the print head during the printing pause.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 12, 2022
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Markus Keller, Martin Wilhelm, Martin Stockmar, Florian Hitzlsperger, Christoph Rummelsberger
  • Publication number: 20210331464
    Abstract: In the print data for a nozzle of a printer, white dots are replaced by pre-ejection pulses. One or more repetitions of the pre-ejection pulses may be inserted into the print data, depending on the actual print speed of the printer, to determine print speed-dependent print data with which the nozzle is activated to print a print image with high print quality.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 28, 2021
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Martin Stockmar, Timo Sponer, Martin Wilhelm, Robert Baumgartner, Christoph Rummelsberger, Markus Keller
  • Patent number: 11133653
    Abstract: A gas-insulated line is provided. The gas-insulated line defines an axial direction and includes an enclosure configured to surround a nominal conductor and a pressurized insulation gas in the enclosure, wherein the enclosure includes: a first attachment point and a second attachment point, the first attachment point and the second attachment point being spaced apart from each other in the axial direction; a rope element fixed between the first attachment point and the second attachment point and loaded with a pretension; and a flexible enclosure element arranged between the first attachment point and the second attachment point.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: September 28, 2021
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Markus Richter, HongBing Liao, Juerg Bryner, Markus Keller
  • Patent number: 10676140
    Abstract: A rear diffusor unit includes a base element configured to be mounted in a fixed position on a body of a vehicle; a movable diffusor element; and a drive device with which the movable diffusor element is movable relative to the base element between two end positions. The diffusor element is a box diffusor element having two fixed side walls, a fixed rear wall, and a fixed base.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: June 9, 2020
    Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Thomas Wolf, Markus Keller, Sven Wallrabe, Dominik Beierl
  • Patent number: 10596897
    Abstract: A multi-part air duct (10) for a motor vehicle has a lower foam part (11), an upper foam part (12), and lateral injection moldings (13, 14). The injection moldings (13, 14) connect the lower foam part (11) to the upper foam part (12) on both sides.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: March 24, 2020
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Sven Wallrabe, Markus Keller, Robert Bona, Eberhard Palmer, Niklas Neuschwanger
  • Publication number: 20200067285
    Abstract: A gas-insulated line is provided. The gas-insulated line defines an axial direction and includes an enclosure configured to surround a nominal conductor and a pressurized insulation gas in the enclosure, wherein the enclosure includes: a first attachment point and a second attachment point, the first attachment point and the second attachment point being spaced apart from each other in the axial direction; a rope element fixed between the first attachment point and the second attachment point and loaded with a pretension; and a flexible enclosure element arranged between the first attachment point and the second attachment point.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 27, 2020
    Inventors: Markus Richter, HongBing Liao, Juerg Bryner, Markus Keller
  • Patent number: 10315595
    Abstract: A front end module for covering a front of a front vehicle part of a motor vehicle includes a crossmember that is connectable to longitudinal carriers of a motor vehicle frame so as to absorb loads of a bumper. An upper frame element is connected to the crossmember for supporting an engine hood. A receiving region for receiving a radiator grill is disposed between the crossmember and the upper frame element. Fastening elements disposed on the crossmember and/or the upper frame element are configured to fasten an intercooler for cooling charge air of a turbocharger, with respect to the driving direction, in front of a wheel arch that receives a front wheel. A crash structure is connected to the fastening elements for absorbing impact energy by way of plastic deformation and covers a majority of the front wheel in an installed state of the front end module.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: June 11, 2019
    Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Markus Keller, Frank Burbulla, Herbert Klamser, Thomas Ruckstuhl, Franz-Rudolf Wierschem, Xuan Li
  • Patent number: 10183572
    Abstract: A front end arrangement of a motor vehicle has a front end module (4) that is fastened directly or indirectly to vehicle longitudinal carriers of a vehicle body arrangement which delimit an engine compartment (10). At least one cooling apparatus (12) is mounted in a floating manner on that side of the front end module (4) that is directed toward the engine compartment (10). At least one air guide duct is fastened to the front end module (4) and is provided with at least one air guide arrangement (18). The air guide arrangement (18) is connected via fastening means (19) to the cooling apparatus (12).
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: January 22, 2019
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Sven Wallrabe, Markus Keller, Robert Bona, Niklas Neuschwanger, Peter Reutlinger, Daniel Quednau, Andreas Burk
  • Publication number: 20190009841
    Abstract: A rear diffusor unit includes a base element configured to be mounted in a fixed position on a body of a vehicle; a movable diffusor element; and a drive device with which the movable diffusor element is movable relative to the base element between two end positions. The diffusor element is a box diffusor element having two fixed side walls, a fixed rear wall, and a fixed base.
    Type: Application
    Filed: April 26, 2018
    Publication date: January 10, 2019
    Inventors: Thomas Wolf, Markus Keller, Sven Wallrabe, Dominik Beierl
  • Publication number: 20180154762
    Abstract: A front end arrangement of a motor vehicle has a front end module (4) that is fastened directly or indirectly to vehicle longitudinal carriers of a vehicle body arrangement which delimit an engine compartment (10). At least one cooling apparatus (12) is mounted in a floating manner on that side of the front end module (4) that is directed toward the engine compartment (10). At least one air guide duct is fastened to the front end module (4) and is provided with at least one air guide arrangement (18). The air guide arrangement (18) is connected via fastening means (19) to the cooling apparatus (12).
    Type: Application
    Filed: November 27, 2017
    Publication date: June 7, 2018
    Inventors: Sven Wallrabe, Markus Keller, Robert Bona, Niklas Neuschwanger, Peter Reutlinger, Daniel Quednau, Andreas Burk
  • Publication number: 20180072151
    Abstract: A multi-part air duct (10) for a motor vehicle has a lower foam part (11), an upper foam part (12), and lateral injection moldings (13, 14). The injection moldings (13, 14) connect the lower foam part (11) to the upper foam part (12) on both sides.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 15, 2018
    Inventors: Sven Wallrabe, Markus Keller, Robert Bona, Eberhard Palmer, Niklas Neuschwanger
  • Publication number: 20170368707
    Abstract: The invention relates to a gripper for use in a slicing machine, in particular a high-performance slicing machine, said gripper being joined to the food product using an integral bonding process.
    Type: Application
    Filed: November 3, 2015
    Publication date: December 28, 2017
    Inventor: Markus Keller