Patents by Inventor John Sponzilli

John Sponzilli 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).

  • Publication number: 20060005899
    Abstract: A steel composition for use in making tillage tools is disclosed. The steel composition is tailored to provide a superior combination of wear resistance and impact toughness for the tillage tools. In one embodiment, the steel composition includes from 0.30 to 0.35% of carbon; from 1.00 to 1.25% of manganese; from 0.0005 to 0.003% of boron; from 0.15 to 0.30% of silicon; not more than 0.30% of nickel; from 0.10 to 0.30% of chromium, the nickel and chromium together being not more than 0.40%; from 0.001 to 0.004% of calcium; not more than 0.035% of phosphorous; not more than 0.015% of sulfur; not more than 0.10% of copper; not more than 0.040% of molybdenum; the balance being iron and incidental impurities, wherein all percentages are percentages by weight of the total composition. The steel composition may be formed into tillage tools using conventional methods.
    Type: Application
    Filed: July 8, 2004
    Publication date: January 12, 2006
    Inventors: John Sponzilli, Billy Sallas, David Dobbins