Patents by Inventor Erich Fries

Erich Fries 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: 20220305743
    Abstract: A method for producing leaf springs in fiber composite construction in a desired shape of the leaf springs, the method including the following steps: strand-drawing a fiber material from a fiber supply store into an injection box, which is designed to continuously impregnate a respective section of the fiber material within an injection chamber of the injection box under a chamber overpressure with at least one matrix material during the strand drawing of the fiber material; pulling the fiber material strand impregnated with the matrix material out of the injection box, and subsequently, conveying the fiber material strand impregnated with matrix material to a heating device, where each of the conveyed sections of the fiber material strand impregnated with the matrix material is at least partially cured; and forming the fiber material strand reinforced with the matrix material into the desired shape of the leaf springs. The invention further relates to an associated strand-drawing device.
    Type: Application
    Filed: October 31, 2018
    Publication date: September 29, 2022
    Inventors: Erich Fries, Wolfgang Hinz