Patents by Inventor Igor Hoffmann

Igor Hoffmann 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: 20240023785
    Abstract: A dishwasher, in particular a household dishwasher, includes a dishwasher cavity, a spray apparatus for dispensing washing liquor, and a drive facility including an electric motor designed to actively drive the spray apparatus so as to apply washing liquor to an item to be washed arranged in the dishwasher cavity. The drive facility includes a detection unit for detecting a motor rotational speed of the electric motor. A control apparatus determines a blockage of the spray apparatus in dependence upon the detected motor rotational speed.
    Type: Application
    Filed: October 27, 2021
    Publication date: January 25, 2024
    Inventors: Stephan Lutz, Stefan Pollithy, Markus Wecker, Igor Hoffmann, Marco Kienle
  • Patent number: 11696667
    Abstract: A household dishwasher includes a washing container receiving a dishwasher load, a pump pot, and a spray arm for applying washing liquor and/or fresh water to the dishwasher load in the washing container. The spray arm is actively driven by a drive system and mounted on the pump pot for rotation about an axis of rotation. The spray arm has a rib geometry that revolves around the axis of rotation and includes an encoding groove running along the axis of rotation. The pump pot includes an encoding rib running along the axis of rotation and corresponding to the encoding groove. The encoding rib is configured for passage through the encoding groove along the axis of rotation during assembly and disassembly of the spray arm so as to enable the spray arm to be assembled on and disassembled from the pump pot in precisely one angular position.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: July 11, 2023
    Assignee: BSH Hausgeräte GmbH
    Inventors: Bernd Eisenbart, Michael Lugert, Werner Oblinger, Igor Hoffmann
  • Publication number: 20220087501
    Abstract: A household dishwasher includes a washing container receiving a dishwasher load, a pump pot, and a spray arm for applying washing liquor and/or fresh water to the dishwasher load in the washing container. The spray arm is actively driven by a drive system and mounted on the pump pot for rotation about an axis of rotation. The spray arm has a rib geometry that revolves around the axis of rotation and includes an encoding groove running along the axis of rotation. The pump pot includes an encoding rib running along the axis of rotation and corresponding to the encoding groove. The encoding rib is configured for passage through the encoding groove along the axis of rotation during assembly and disassembly of the spray arm so as to enable the spray arm to be assembled on and disassembled from the pump pot in precisely one angular position.
    Type: Application
    Filed: July 16, 2020
    Publication date: March 24, 2022
    Inventors: Bernd Eisenbart, Michael Lugert, Werner Oblinger, Igor Hoffmann
  • Patent number: 11015616
    Abstract: A liquid heating pump includes an impeller chamber having an impeller, which can be rotatably driven, and a diffusor chamber and/or pressure chamber arranged axially downstream in the flow direction and having a stationary diffusor. A heating device is associated with the diffusor and/or pressure chamber. The diffusor has a main body, in particular in the shape of a circular cylinder. The main body has a front wall on which a guide blade portion is arranged which axially protrudes in a direction of the impeller into a liquid ejection region of the impeller arranged around an outer periphery of the impeller and which extends away from the liquid ejection region outwardly toward an axial outer casing of the main body, which axial outer casing is arranged radially further outwardly than the liquid ejection region of the impeller.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 25, 2021
    Assignee: BSH Hausgeräte GmbH
    Inventors: Igor Hoffmann, Stephan Lutz, Hans-Holger Pertermann, Markus Wecker
  • Publication number: 20190128284
    Abstract: A liquid heating pump includes an impeller chamber having an impeller, which can be rotatably driven, and a diffuser and/or pressure chamber arranged axially downstream in the flow direction and having a stationary diffuser. A heating device is associated with the diffuser and/or pressure chamber. The diffuser has a main body, in particular in the shape of a circular cylinder, having an axial outer casing, the diameter of which is selected to be at least equal to 80%, in particular between 80% and 90%, preferably approximately equal to 86%, of the external diameter of the diffuser and/or pressure chamber.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 2, 2019
    Inventors: Igor HOFFMANN, Stephan LUTZ, Hans-Holger PERTERMANN, Markus WECKER
  • Publication number: 20190093671
    Abstract: A liquid heating pump includes an impeller chamber having an impeller, which can be rotatably driven, and a diffusor chamber and/or pressure chamber arranged axially downstream in the flow direction and having a stationary diffusor. A heating device is associated with the diffusor and/or pressure chamber. The diffusor has a main body, in particular in the shape of a circular cylinder. The main body has a front wall on which a guide blade portion is arranged which axially protrudes in a direction of the impeller into a liquid ejection region of the impeller arranged around an outer periphery of the impeller and which extends away from the liquid ejection region outwardly toward an axial outer casing of the main body, which axial outer casing is arranged radially further outwardly than the liquid ejection region of the impeller.
    Type: Application
    Filed: April 25, 2017
    Publication date: March 28, 2019
    Inventors: Igor Hoffmann, Stephan Lutz, Hans-Holger Pertermann, Markus Wecker