Patents by Inventor Robert De Haeck

Robert De Haeck 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).

  • Patent number: 4109059
    Abstract: Flux-cored wire as mentioned below, in which a sheath of steel strip is filled with a powder, a selection of iron powders or earth carbonates or fluorides and ferro-metallic deoxidizers and arc stabilizers are added and the mixture is baked at about 570.degree. to 620.degree. C, specific compositions as detailed in the description being used in the powder, the powder specifically having added to it 1 to 3% by weight of powder of atomized silicate, and the sheath being of low-carbon or low-alloy steel, the whole being sifted preferably at 100 mesh.
    Type: Grant
    Filed: February 23, 1977
    Date of Patent: August 22, 1978
    Assignee: La Soudure Electrique Autogene, Procedes Arcos
    Inventor: Robert De Haeck
  • Patent number: 4016399
    Abstract: Flux-cored wire for automatic or semi-automatic arc welding process, comporting specific powder compositions as detailed in the description, which are high in amounts of metallic powders, mixed with metallic silicate solution to form a paste and baked before its introduction within a low-carbon or low-alloy steel sheath.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: April 5, 1977
    Assignee: La Soudure Electrique Autogene, Procedes Arcos
    Inventor: Robert De Haeck