Patents by Inventor Alexander Dehnelt

Alexander Dehnelt 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).

  • LEAD-FREE BRASS ALLOY AND METHOD OF USING THE LEAD-FREE BRASS ALLOY
    Publication number: 20230037406
    Abstract: A lead-free brass alloy contains 57.0 to 60.0% wt. Cu, 1.0 to 2.0% wt. Al, 1.5 to 2.5% wt. Mn, 0.1 to 1.0% wt. Fe, at most 0.5% wt. Ni, at most 0.5% wt. Sn, 0.5 to 2.0% wt. Si, less than 0.1% wt. Pb, balance Zn and also unavoidable impurities. Wherein the copper equivalent (CuEq) is in the range from 52.0 to 58.0%.
    Type: Application
    Filed: July 21, 2022
    Publication date: February 9, 2023
    Inventors: Florian Seuss, Alexander Dehnelt, Volker Braeutigam
  • LEAD-FREE AND ANTIMONY-FREE BRASS ALLOY
    Publication number: 20230035864
    Abstract: A lead-free and antimony-free brass alloy contains 56 to 66% Cu, 0.1 to 1.5% Mg, less than 0.1% Pb, and a balance of Zn. Unavoidable impurities are also present. According to other embodiments, different amounts of As, P, Al, Sn, Cu, Mg, Pb, In and Zn may be provided as well.
    Type: Application
    Filed: July 27, 2022
    Publication date: February 2, 2023
    Inventors: Florian Seuss, Patrick Feldner, Hartmut Ricken, Alexander Dehnelt
  • MILKING DEVICE FOR MILKING DAIRY CATTLE
    Publication number: 20170013796
    Abstract: A milking device for milking dairy cattle contains at least one teat cup which is connected to a milk-collecting container by a hose. In order to simplify the production of the milking device, at least one surface coming in contact with the milk or one component of the teat cup and/or of the milk-collecting container is made of an alloy that contains at least 50% Cu and, as a further alloying constituent, at least 2% Zn or at least 2% Sn.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Inventors: VOLKER BRAEUTIGAM, ALEXANDER DEHNELT
  • Copper-zinc alloy for a valve guide
    Patent number: 8435361
    Abstract: A novel copper-zinc alloy is particularly suited for a valve guide. The copper-zinc alloy contains 59 to 73% copper, 2.7 to 8.3% manganese, 1.5 to 6% aluminum, 0.2 to 4% silicon, 0.2 to 3% iron, 0 to 2% lead, 0 to 2% nickel, 0 to 0.2% tin, remainder zinc and inevitable impurities.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: May 7, 2013
    Assignee: Diehl Metall Stiftung & Co. KG
    Inventors: Norbert Gaag, Alexander Dehnelt
  • Copper-zinc alloy for a valve guide
    Publication number: 20070227631
    Abstract: A novel copper-zinc alloy is particularly suited for a valve guide. The copper-zinc alloy comprises 59 to 73% copper, 2.7 to 8.3% manganese, 1.5 to 6% aluminum, 0.2 to 4% silicon, 0.2 to 3% iron, 0 to 2% lead, 0 to 2% nickel, 0 to 0.2% tin, remainder zinc and inevitable impurities.
    Type: Application
    Filed: June 1, 2007
    Publication date: October 4, 2007
    Inventors: Norbert Gaag, Alexander Dehnelt