Patents Assigned to Friedrich Graepel AG
  • Metal sheet with contour cut for vibration reduction
    Patent number: 10953451
    Abstract: A metal sheet with attachment points for attaching the metal sheet to a support structure has a contour cut introduced in a sheet surface of the metal sheet, wherein the contour cut extends transversely to a connection line extending between a first and a second one of the attachment points. The contour cut is positioned relative to the first attachment point such that a vibration line extending as far as the first attachment point when the contour cut is not present is interrupted by the contour cut.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: March 23, 2021
    Assignee: Friedrich Graepel AG
    Inventors: Ewald Hartwich, Marc Bartke, Normann Willimek