Patents by Inventor Wolf Wunder

Wolf Wunder 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).

  • Cast iron with spheroidal graphite and austenitic-bainitic mixed structure
    Patent number: 4541878
    Abstract: A high ductility machinable cast iron with mixed austenitic-bainitic structure is made by a method which involves limiting the manganese content to less than 0.3% by weight and utilizing a substantially lower temperature austenitizing heat treatment (820.degree. to 830.degree. C.) for a shorter period (10 to 25 minutes) than has hitherto been considered to be necessary to achieve such structures. The low alloy cast iron can therefore be made from available scrap with low manganese content and at low cost.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: September 17, 1985
    Assignee: Horst Muhlberger
    Inventors: Horst Muhlberger, Bruno Prinz, Wolf Wunder, Ulrich Schafer, Josef Bognar
  • Covering layer for metallic baths
    Patent number: 3976474
    Abstract: A covering layer for metallic baths, i.e. baths of molten metal or metal alloys, especially brass or brass-forming compositions consisting of premelted homogeneous finely divided alkali borosilicate glass in a particle size of less than 60 microns and a composition of substantially 10 to 70% by weight B.sub.2 O.sub.3, 5 to 65% by weight SiO.sub.2 and 5 to 40% by weight of one or more of the alkali-metal oxides Na.sub.2 O, K.sub.2 O and Li.sub.2 O.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: August 24, 1976
    Assignee: Vereinigte Deutsche Metallwerke AG
    Inventors: Wolf Wunder, Volker Kohne, Rosolde Hill, Antonio Leogrande