Patents by Inventor Helmut Hoedt

Helmut Hoedt 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).

  • Patent number: 4315875
    Abstract: The invention relates to a process for the production of molded elements of mineralic components and hardenable organic binders, which are mixed, filled into suitable molds and, by applying heat are hardened, wherein the heat to be supplied to the mass to be hardened is provided by a dielectric heater.The invention relates also to the apparatus for performing the process wherein two electrode plates arranged at a variable distance relative to each other, a dielectric heater and a mold provided therebetween to receive the mass to be hardened of said molded element is provided.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: February 16, 1982
    Inventor: Helmut Hoedt