Patents by Inventor Olaf PETZOLDT

Olaf PETZOLDT 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).

  • Publication number: 20150376737
    Abstract: A copper-zinc alloy, in particular for providing components for a plumbing fitting. The alloy includes (in % by weight): between 63.5 and 63.8% Cu, between 35.2 and 35.6 Zn, between 0.17 ans 0.20% Pb, between 0.32 and 0.4% Al, between 0.11 and 0.13% As, between 0.16 and 0.2% Fe, between 0.0 and 0.2% Sn, between 0.0 and 0.2% Mn, and residual constituents in respective maximum quantities of 0.02%. A method for producing a cast component is provided that includes a copper-zinc alloy of this type. The copper-zinc alloy and the components produced therewith permit a particularly environmentally-friendly, cost-effective production of plumbing fittings.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Applicant: Grohe AG
    Inventors: Thomas SCHROEDER, Olaf PETZOLDT
  • Publication number: 20150376736
    Abstract: A copper-zinc alloy, in particular for providing components for a plumbing fitting. The alloy comprises (in % by weight): between 63.0 and 64.5% Cu, between 33.8 and 36.8% Zn, between 0.0 and 0.20% Pb, between 0.2 and 0.7% Al, between 0.04 and 0.14% As, between 0.0 and 0.3% Fe, between 0.0 and 0.3% Sn, between 0.0 and 0.1% Mn, and residual constituents in respective maximum quantities of 0.02%. A method for producing a cast component is provided that includes a copper-zinc alloy of this type. The copper-zinc alloy and the components produced therewith permit a particularly environmentally-friendly, cost-effective production of plumbing fittings.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Applicant: GROHE AG
    Inventors: Thomas SCHROEDER, Olaf PETZOLDT