Patents by Inventor Dirk Opalla

Dirk Opalla 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: 20070158004
    Abstract: The invention relates to a method for producing components, media- or drinking-water carrying works, in particular fittings, valves, pipes, press connectors, roof or drainage gutters, as well as components for media- or drinking-water carrying works, in particular fittings, valves, pipes, press connectors, roof or drainage gutters. The object to provide a method for producing components for media- or drinking-water carrying works, in particular fittings, valves, pipes, press connectors, roof or drainage gutters, whereby corrosion-resistant components can be produced simply and economically, which components exhibit low migration of metal ions into the medium, for example of lead and nickel ions into drinking water, is achieved in that an ingot or a rod is continuously cast from a copper alloy, wherein the copper alloy has the following alloying components in wt. %: 2%?Si?4.5%, 1%?Zn?17%, 0.05%?Mn?0.6%, unavoidable accompanying elements to a maximum of 0.5% in total, preferably to a maximum of 0.
    Type: Application
    Filed: December 21, 2006
    Publication date: July 12, 2007
    Inventors: Winfried Reif, Dirk Opalla, Katrin Muller