Patents by Inventor Karl J. Kulikowski

Karl J. Kulikowski 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: 5369244
    Abstract: A flux cored arc welding electrode of the type used with external shielding gas wherein the electrode comprises an outer ferrous sheath and a particulate fill material comprising an acidic flux system and alloying agents with the fill material including an arc stabilizer, titanium dioxide, calcium fluoride, an alloying system of 0-4.0 percent by weight of electrode selected from the class consisting of aluminum, silicon, titanium, carbon and manganese. Iron powder controls the percentage of the fill of the electrode and 0.2-1.0 percent by weight of electrode is polytetrafluoroethylene powder.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: November 29, 1994
    Assignee: The Lincoln Electric Company
    Inventors: Karl J. Kulikowski, Robert P. Munz
  • Patent number: 5365036
    Abstract: A cored electrode for gas shielded arc welding to deposit a weld metal bead, where the electrode has a core of fill material surrounded by a ferrous tube with the fill material having alloying agents and oxide fluxing ingredients including, by weight of fill material, 40-60% titanium dioxide, 0.3-0.5% boron oxide, and 1.0-5.0% aluminum powder, with the aluminum powder having a higher affinity for oxygen than the oxide fluxing ingredients and with the amount of aluminum powder selected to produce 0.02-0.08% titanium, less than 0.002% boron and less than 0.10% aluminum in the weld metal.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: November 15, 1994
    Assignee: The Lincoln Electric Company
    Inventors: Dennis D. Crockett, Ronald J. Gordish, Karl J. Kulikowski, Robert P. Munz