Patents by Inventor Igor ALTENBERGER

Igor ALTENBERGER 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).

  • Copper-zinc-nickel-manganese alloy
    Patent number: 11447847
    Abstract: A copper alloy having the following composition (in % by weight) Zn: 17 to 20.5%, Ni: 17 to 23%, Mn: 8 to 11.5%, optionally up to 4% Cr, optionally up to 5.5% Fe, optionally up to 0.5% Ti, optionally up to 0.15% B, optionally up to 0.1% Ca, optionally up to 1.0% Pb, balance copper and unavoidable impurities, wherein the proportion of copper is at least 45% by weight. Further, the ratio of the proportion of Ni to the proportion of Mn is at least 1.7 and the alloy has a microstructure which has inclusions of MnNi and MnNh precipitates.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: September 20, 2022
    Assignee: WIELAND-WERKE AG
    Inventor: Igor Altenberger
  • COPPER-ZINC-NICKEL-MANGANESE ALLOY
    Publication number: 20210032726
    Abstract: A copper alloy having the following composition (in % by weight) Zn: 17 to 20.5%, Ni: 17 to 23%, Mn: 8 to 11.5%, optionally up to 4% Cr, optionally up to 5.5% Fe, optionally up to 0.5% Ti, optionally up to 0.15% B, optionally up to 0.1% Ca, optionally up to 1.0% Pb, balance copper and unavoidable impurities, wherein the proportion of copper is at least 45% by weight. Further, the ratio of the proportion of Ni to the proportion of Mn is at least 1.7 and the alloy has a microstructure which has inclusions of MnNi and MnNh precipitates.
    Type: Application
    Filed: March 12, 2019
    Publication date: February 4, 2021
    Inventor: Igor ALTENBERGER
  • Copper alloy and its uses
    Patent number: 10480049
    Abstract: A copper alloy having the following composition (in % by weight): from 10.6 to 18% of Al, from 10.5 to 14.5% of Ni, optionally up to 2% of Fe, optionally up to 1% of Co, optionally up to 0.5% of Ti, optionally up to 0.5% of Mn, optionally up to 0.15% of B, optionally up to 0.1% of Ca, and optionally up to 0.1% of C, with the balance being copper and unavoidable impurities. Nickel aluminides of the NiAl type are embedded as precipitates in the microstructure of the alloy.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 19, 2019
    Assignee: WIELAND-WERKE AG
    Inventors: Igor Altenberger, Hans-Achim Kuhn
  • COPPER ALLOY AND ITS USES
    Publication number: 20170349974
    Abstract: The invention relates to a copper alloy having the following composition (in % by weight): from 10.6 to 18% of Al, from 10.5 to 14.5% of Ni, optionally up to 2% of Fe, optionally up to 1% of Co, optionally up to 0.5% of Ti, optionally up to 0.5% of Mn, optionally up to 0.15% of B, optionally up to 0.1% of Ca, optionally up to 0.1% of C, a balance copper and unavoidable impurities. Nickel aluminides of the NiAl type are embedded as precipitates in the microstructure of the alloy. The invention further relates to a number of uses of this copper alloy.
    Type: Application
    Filed: March 31, 2017
    Publication date: December 7, 2017
    Inventors: Igor ALTENBERGER, Hans-Achim KUHN