Patents by Inventor Siegfried Staller

Siegfried Staller 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).

  • Modification of deposit formation in glass furnace heat recovery
    Patent number: 4561873
    Abstract: Methods for removing deposits formed in the heat exchange tube of waste heat recovery boilers for glass furnaces in which sodium aluminum silicate fine particles are introduced into the waste gases before they enter the heat exchange tubes.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: December 31, 1985
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hans-Ulrich Hempel, Rudolf Novotny, Siegfried Staller, Johannes Kramer
  • Hydrothermal disintegration of calcined aluminum oxide wastes
    Patent number: 4557907
    Abstract: A process for hydrothermally disintegrating wastes or residues having a high content of calcined aluminum oxides by reacting said wastes or residues with an aqueous sodium hydroxide solution having a concentration of sodium hydroxide of from about 20 to about 50% by weight at a temperature in the range of from about 180.degree. to about 250.degree. C. under a saturated steam pressure corresponding to said temperature. The sodium aluminate solution obtained is separated off and optionally filtered.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: December 10, 1985
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Peter Christophliemk, Jurgen von Laufenberg, Rudolf Novotny, Siegfried Staller, Friedrich W. Diekotter