Patents by Inventor Hermann Weingerl

Hermann Weingerl 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).

  • Ferritic-austentitic chromium-nickel steel and method of making a steel body
    Patent number: 4272305
    Abstract: Steel bodies composed of ferritic-austenitic Cr-Ni steel with 30 to 70% austenite and consisting essentially of:up to 0.1% by weight carbon,up to 1.0% by weight silicon,4.0% to 6.0% by weight manganese,22.0% to 28.0% by weight chromium,3.5% to 5.5% by weight nickel,1.0% to 3.0% by weight molybdenum,0.35% to 0.6% by weight nitrogen,balance iron and unavoidable impurities,are subjected to forging and after even second degree deforming, possess a notch impact strength (tenacity) according to the ISO-V test of more than 35 Joule and a minimum yield point of 600 N/mm.sup.2.
    Type: Grant
    Filed: April 10, 1979
    Date of Patent: June 9, 1981
    Assignee: Vereinigte Edelstahl-Werke Aktiengesellschaft (VEW)
    Inventors: Hermann Weingerl, Manfred Koren