Patents by Inventor Werner Astor

Werner Astor 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).

  • Thermal treatment device for loose materials
    Patent number: 5517929
    Abstract: Device for thermally treating loose materials, such as earth, sand, sewage sludge, gravel etc, and, in particular, for sterilizing garden soil and sand used for playing with. The device has a reception device with a surface arrangement having at least one surface section inclined with respect to the horizontal. On this surface section, the loose materials are continuouly supplied by a supply arrangement. A burner arrangement is provided above this surface section which directly fires materials to be treated.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: May 21, 1996
    Inventors: Hermann Repnik, Werner Astor