Patents by Inventor Dieter Grüzmann

Dieter Grüzmann 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).

  • PTC heating element and an electric heating device
    Patent number: 11721456
    Abstract: A PTC heating element and an electric heating device containing such a PTC heating element are disclosed. The PTC heating element comprises two insulating layers with a metallic coating provided on one side and a PTC element arranged therebetween which is provided on oppositely disposed main side surfaces with a respective metallization which is electrically conductively connected to the coating of one of the insulating layers. The metallization provided on one of the main side surfaces is assigned only to one potential for energizing the PTC element. The metallization provided on the other main side surface is assigned to only the other potential for energizing the PTC element. The metallization of the one main side surface of the PTC element and the metallization of the other main side surface of the PTC element are formed in such a way that the current path (P) through the PTC element is extended relative to the thickness (D) of the PTC element.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: August 8, 2023
    Assignee: Eberspächer catem Hermsdorf GmbH & Co. KG
    Inventors: Dieter Grüzmann, Jan-Michael Feustel
  • PTC Heating Element And An Electric Heating Device
    Publication number: 20200286652
    Abstract: A PTC heating element and an electric heating device containing such a PTC heating element are disclosed. The PTC heating element comprises two insulating layers with a metallic coating provided on one side and a PTC element arranged therebetween which is provided on oppositely disposed main side surfaces with a respective metallization which is electrically conductively connected to the coating of one of the insulating layers. The metallization provided on one of the main side surfaces is assigned only to one potential for energizing the PTC element. The metallization provided on the other main side surface is assigned to only the other potential for energizing the PTC element. The metallization of the one main side surface of the PTC element and the metallization of the other main side surface of the PTC element are formed in such a way that the current path (P) through the PTC element is extended relative to the thickness (D) of the PTC element.
    Type: Application
    Filed: March 4, 2020
    Publication date: September 10, 2020
    Inventors: Dieter Grüzmann, Jan-Michael Feustel