Patents by Inventor Heinrich Zoller

Heinrich Zoller 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).

  • Filler metal in a welded assembly
    Patent number: 4232095
    Abstract: Filler metal for welding AlZnMg type alloys raises the resistance to stress corrosion without increasing the susceptibility to exfoliation corrosion. The composition of the filler metal includes a copper addition which suppresses weld boundary corrosion while additions of manganese, titanium, chromium and zirconium inhibit weld cracking. High weld strengths are attained using the said filler metal.
    Type: Grant
    Filed: March 2, 1979
    Date of Patent: November 4, 1980
    Assignee: Swiss Aluminium Ltd.
    Inventors: Miroslav Pirner, Heinrich Zoller, Heinz Bichsel
  • Aluminum base alloy
    Patent number: 4224065
    Abstract: An aluminum alloy of the AlCu type containing cadmium and manganese exhibits an optimum combination of strength, toughness and corrosion resistance. The alloy contains 4.0 to 5.0% copper, 0.1 to 0.2% cadmium and 0.2 to 1.0% manganese. The alloy is suitable for the production of high strength, tough and corrosion resistant extrusion products.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: September 23, 1980
    Assignee: Swiss Aluminium Ltd.
    Inventors: Jean-Claude Jaquet, Manfred Heckler, Heinrich Zoller
  • Filler metal for welding aluminum alloys
    Patent number: 4216016
    Abstract: Filler metal for welding aluminum base alloys obtains improved resistance to stress corrosion cracking. The composition of the filler metal includes a copper addition which suppresses weld boundary corrosion. High weld strengths are attained using the said filler metal.
    Type: Grant
    Filed: October 5, 1978
    Date of Patent: August 5, 1980
    Assignee: Swiss Aluminium Ltd.
    Inventors: Miroslav Pirner, Heinrich Zoller, Heinz Bichsel
  • Aluminum-copper-nickel alloy for the production of heat resistant pans and utensils coated with enamels and/or other non-metallic materials and corresponding aluminous metal articles
    Patent number: 3983274
    Abstract: A method of production of cooking pans and the like, using an aluminum base alloy containing principally 1.2 to 2.3 % copper, 0.3 to 1.2 % nickel and other elements within prescribed ranges, the metal articles made of this alloy being provided with a good adherent coating of enamel directly applied on this metal (e.g. on the outside) and/or of other non-metallic material such as polytetrafluorethylene (e.g. on the inside) and these metal articles showing good thermal resistance at service temperatures.
    Type: Grant
    Filed: June 8, 1971
    Date of Patent: September 28, 1976
    Assignee: Swiss Aluminium Ltd.
    Inventor: Heinrich Zoller