Patents by Inventor Bruno Stemmler

Bruno Stemmler 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 conveying and treating a gas employed for the coating of workpieces by means of a chemical, heterogeneous vapor-phase reaction
    Patent number: 4525389
    Abstract: A process is disclosed comprising a method for treating and conveying gas mixtures in a coating process employing a chemical, heterogeneous vapor-phase reaction in a reaction chamber in which the reaction product obtained in the reaction chamber is withdrawn from the reaction chamber, separated into at least one component, the withdrawn component is dosed and reintroduced into the reaction chamber.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: June 25, 1985
    Assignee: Aktiengesellschaft M.A.N. Maschinenfabrik Augsburg-Nurnberg
    Inventors: Bruno Stemmler, Hans Zeilinger
  • Method of producing protective oxide layers
    Patent number: 4478648
    Abstract: A method for producing oxide surface layers on titanium-based objects. The object is pretreated mechanically and, following pretreatment, an oxidation process takes place using a low oxidation potential and a temperature between 480.degree. C. and 800.degree. C. As an oxidizing agent, use is preferably made of water vapor at a partial pressure of about 20 mbar. The water vapor may be mixed with an inert carrier gas, such as argon or helium.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: October 23, 1984
    Assignee: MAN Maschinenfabrik Augsburg-Nurnberg AG
    Inventors: Hans Zeilinger, August Muhlratzer, Bruno Stemmler
  • Method for the manufacture of deformation resistant oxidic protective layers
    Patent number: 4475958
    Abstract: Method for the manufacturing of deformation-resistant oxide coatings on metallic workpieces, in which fissures are induced in the oxide layer formed on the surface of the workpiece as a result of severe deformations in the base material. The fissures are subsequently healed by filling the interstices with subsequently produced oxide resulting from a post-oxidation process. Repeating the process several times controls the natural stress condition of the surface layer such that the effective elastic deformation range is extended.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: October 9, 1984
    Assignee: M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellchaft
    Inventors: August Muhlratzer, Bruno Stemmler, Hans Zeilinger