Patents by Inventor Heiko Schaefer

Heiko Schaefer 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: 20240150054
    Abstract: The invention relates to an output unit for a provision individually per track of sheet material for placing beneath products fed on two or multiple tracks, in particular beneath food portions, said output unit comprising a draw-in device that is configured to draw in individually per track a respective one material web of the sheet material per track and that in particular has at least one driven draw-in shaft and at least one draw-in pressure unit; a separation device that is configured to separate the sheet material from the material webs; and an ejection device that is configured to discharge sheet material on two or multiple tracks and that comprises a driven ejection roller and an ejection counter-unit that forms an ejection gap for the sheet material together with the ejection roller, wherein the ejection roller is jointly associated with at least two tracks.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 9, 2024
    Inventors: Marvin Schäfer, Thorsten Schneider, Markus Gerhardt, Florian Reitz, Julian Nolte, Heiko Knöppel
  • Patent number: 11975873
    Abstract: The invention relates to an output unit for a provision individually per track of sheet material for placing beneath products fed on two or multiple tracks, in particular beneath food portions, said output unit comprising a draw-in device that is configured to draw in individually per track a respective one material web of the sheet material per track and that in particular has at least one driven draw-in shaft and at least one draw-in pressure unit; a separation device that is configured to separate the sheet material from the material webs; and an ejection device that is configured to discharge sheet material on two or multiple tracks and that comprises a driven ejection roller and an ejection counter-unit that forms an ejection gap for the sheet material together with the ejection roller, wherein the ejection roller is jointly associated with at least two tracks.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: May 7, 2024
    Assignee: Weber Maschinenbau GmbH Breidenbach
    Inventors: Marvin Schäfer, Thorsten Schneider, Markus Gerhardt, Florian Reitz, Julian Nolte, Heiko Knöppel
  • Publication number: 20230383750
    Abstract: A vacuum pump includes a fan including a rotational speed to be controlled to cool the vacuum pump, a temperature sensor, and a control device that regulates the rotational speed of the fan in dependence on a power consumption of a drive of the vacuum pump and on a temperature measured by the temperature sensor. Another vacuum pump includes an electrically driven fan, an air guide hood, and a conductor that leads from the fan to a supply connection for the fan. The conductor is connected to the supply connection via an electrical connector. The connector is separated from an air flow path, defined by the air guide hood, by a partition wall.
    Type: Application
    Filed: August 14, 2023
    Publication date: November 30, 2023
    Applicant: PFEIFFER VACUUM GMBH
    Inventors: Michael WILLIG, Jan HOFMANN, Jonas BECKER, Gernot BERNHARDT, Verena WANGORSCH, Stefan KALLENBORN, Wolfgang SOEHNGEN, Heiko SCHAEFER, Erhard HARAPAT, Lars PAULI
  • Patent number: 11819918
    Abstract: A method of producing a machining segment, in which a green body (51) is constructed from a machining zone (54), wherein the machining zone (54) is produced from a first metallic powder material (56) and hard material particles (58), the green body (51) is compacted under pressure with a compression pressure to result in a compact body and the compact body is sintered thermally at a sintering temperature to result in the finished machining segment, wherein the machining zone (54) is produced by layer-by-layer application of material layers of the first metallic powder material (56) and particle layers of the hard material particles (58), wherein the hard material particles (58) in one particle layer are placed into the previously applied material layer of the first metallic powder material (56).
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: November 21, 2023
    Assignee: Hilti Aktiengesellschaft
    Inventors: Marcel Sonderegger, Matthias Mueller, Heiko Schaefer
  • Patent number: 11773849
    Abstract: The invention relates to a scroll pump comprising a pressure sensor integrated into the scroll pump.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: October 3, 2023
    Assignee: PFEIFFER VACUUM GmbH
    Inventors: Michael Willig, Jan Hofmann, Jonas Becker, Gernot Bernhardt, Verena Wangorsch, Stefan Kallenborn, Wolfgang Soehngen, Heiko Schaefer, Erhard Harapat, Lars Pauli
  • Publication number: 20210121961
    Abstract: A method of producing a machining segment, in which a green body (51) is constructed from a machining zone (54), wherein the machining zone (54) is produced from a first metallic powder material (56) and hard material particles (58), the green body (51) is compacted under pressure with a compression pressure to result in a compact body and the compact body is sintered thermally at a sintering temperature to result in the finished machining segment, wherein the machining zone (54) is produced by layer-by-layer application of material layers of the first metallic powder material (56) and particle layers of the hard material particles (58), wherein the hard material particles (58) in one particle layer are placed into the previously applied material layer of the first metallic powder material (56).
    Type: Application
    Filed: July 24, 2018
    Publication date: April 29, 2021
    Inventors: Marcel SONDEREGGER, Matthias MUELLER, Heiko SCHAEFER
  • Publication number: 20210102536
    Abstract: The invention relates to a scroll pump comprising a pressure sensor integrated into the scroll pump.
    Type: Application
    Filed: October 6, 2020
    Publication date: April 8, 2021
    Inventors: Michael WILLIG, Jan HOFMANN, Jonas BECKER, Gernot BERNHARDT, Verena WANGORSCH, Stefan KALLENBORN, Wolfgang SOEHNGEN, Heiko SCHAEFER, Erhard HARAPAT, Lars PAULI
  • Patent number: 6799904
    Abstract: A camera arrangement for motor vehicles with a camera that is arranged in a vehicle interior behind a window is described. In this arrangement, a transparent additional window is arranged behind and a distance away from the window, at least in the portion of the window viewed by the camera, so that a layer of air is enclosed between the window and the additional window.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: October 5, 2004
    Assignee: Hella KG Hueck & Co.
    Inventors: Heiko Schaefer, Jens Hunecke
  • Publication number: 20040032668
    Abstract: A camera arrangement for motor vehicles with a camera that is arranged in a vehicle interior behind a window is described. In this arrangement, a transparent additional window is arranged behind and a distance away from the window, at least in the portion of the window viewed by the camera, so that a layer of air is enclosed between the window and the additional window.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 19, 2004
    Inventors: Heiko Schaefer, Jens Hunecke
  • Patent number: 6646359
    Abstract: An electronic device with a housing for being attached to a pane of a motor vehicle by a coupling medium of flexible rubber- or gel-like material includes an exhaust duct for connecting an area of potential bubble formation between the vehicle pane and the coupling medium to ambient air. The exhaust duct prevents the permanent trapping of air bubbles during mounting of the device on the vehicle pane.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: November 11, 2003
    Assignee: Hella KG Hueck & Co.
    Inventors: Heiko Schaefer, Michael Schulte
  • Patent number: 6573995
    Abstract: A sensor device for detecting the degree of wetting and/or soiling of a pane or windshield arranged in a motor vehicle includes individual radiation guide elements integrally molded onto a wall of a housing to be separated from one another by a blocking element of the wall. This reduces the amount of ambient radiation from the environment. A radiation emitter and a radiation receiver are structured as SMD components which are arranged on a circuit board carrier. The sensor device created in this way has a simple and compact design.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: June 3, 2003
    Assignee: Hella KG Hueck & Co.
    Inventors: Achim Beutner, Christian Boehlau, Heiko Schaefer
  • Publication number: 20020155734
    Abstract: An electronic device with a housing for being attached to a pane of a motor vehicle by a coupling medium of flexible rubber- or gel-like material includes an exhaust duct for connecting an area of potential bubble formation between the vehicle pane and the coupling medium to ambient air. The exhaust duct prevents the permanent trapping of air bubbles during mounting of the device on the vehicle pane.
    Type: Application
    Filed: April 18, 2002
    Publication date: October 24, 2002
    Inventors: Heiko Schaefer, Michael Schulte