Patents by Inventor Leo J. Lalor

Leo J. Lalor 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).

  • Welding electrode
    Patent number: 4517441
    Abstract: A welding electrode is provided which is suitable for welding chromium containing ferritic corrosion resistant steels. The electrode comprises a low-carbon manganese steel core wire having a carbon content of less than 0.1% by mass, and a manganese content of 0.35-0.60% by mass. The electrode has a basic chromium alloyed flux coating, which upon welding, deposits a low-carbon chromium martensitic ferritic weld metal comprising about 90% by mass low carbon martensite and about 10% by mass ferrite and having a carbon content of less than 0.04% by mass.
    Type: Grant
    Filed: November 10, 1983
    Date of Patent: May 14, 1985
    Assignee: Nasionale Sweisware (Eiendoms) Beperk
    Inventors: Jan Kaljee, Leo J. Lalor, Sergio M. Pagani, Frederick P. A. Robinson