Patents by Inventor Ewald Angelbauer

Ewald Angelbauer 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).

  • Rotary kiln construction
    Patent number: 4008995
    Abstract: A rotary kiln has a cylindrical casing interrupted along its length by annular members which are welded into and constitute part of the casing and which are provided with outwardly projecting, profiled webs adapted for attachment to the mounting structure of cooler tubes which are arranged in planetary manner about the casing.
    Type: Grant
    Filed: November 21, 1975
    Date of Patent: February 22, 1977
    Assignee: Polysius AG
    Inventors: Hans Mollenkopf, Ewald Angelbauer, Jurgen Wurr, Paul Abel, Horst Bonisch, Antonius Vering