Patents by Inventor Ottmar Knacke

Ottmar Knacke 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).

  • Method for preventing sintering in forging blocks
    Patent number: 4273810
    Abstract: Preventing work pieces of iron or iron alloys in the form of a line of blocks which are pushed through an induction coil and heated to a forging temperature from sticking together. The surfaces of blocks which touch are subjected to an elevated temperature of heating and pressure due to pushing causing sintering with sticking. The application of a finely-divided material of predominantly iron oxide to the surfaces prevents sticking together of the surfaces when subjected to elevated temperature and pressure.
    Type: Grant
    Filed: July 13, 1979
    Date of Patent: June 16, 1981
    Assignee: Brown, Boveri & Cie Aktiengesellschaft
    Inventors: Erwin Dotsch, Jurgen Potschke, Ottmar Knacke