Patents by Inventor Jerry L. Nelson

Jerry L. Nelson 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).

  • Tool steel
    Patent number: 5616187
    Abstract: The invention provides a novel metallic composition and method of using the same. More particularly, the invention affords a tool steel and a method of heat treating the tool steel. In one of the preferred embodiments the tool steel includes about 0.50 to about 0.65 percent by weight carbon, about 0.095 to about 1.70 percent by weight manganese, up to about 0.030 percent by weight phosphorus, about 0.095 to about 0.200 percent by weight sulfur, about 1.10 to about 1.90 percent by weight chromium, about 0.10 to about 0.50 percent by weight nickel and about 0.20 to about 0.60 percent by weight copper. The tool steel of the present invention is preferably heat treated utilizing a heat treatment schedule that includes the steps of a preheat, austenization and a double temper.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: April 1, 1997
    Inventor: Jerry L. Nelson
  • Method of producing a tool or die steel
    Patent number: 5505798
    Abstract: The invention provides a novel metallic composition and method of using the same. More particularly, the invention affords a tool steel and a method of heat treating the tool steel. In one of the preferred embodiments the tool steel includes about 0.50 to about 0.65 percent by weight carbon, about 0.095 to about 1.70 percent by weight manganese, up to about 0.030 percent by weight phosphorus, about 0.095 to about 0.200 percent by weight sulfur, about 1.10 to about 1.90 percent by weight chromium, about 0.10 to about 0.50 percent by weight nickel and about 0.20 to about 0.60 percent by weight copper. The tool steel of the present invention is preferably heat treated utilizing a heat treatment schedule that includes the steps of a preheat, austenization and a double temper.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: April 9, 1996
    Assignee: Jerry L. Nelson
    Inventor: Jerry L. Nelson
  • Metallic composition and processes for use of the same
    Patent number: 5182079
    Abstract: The invention provides a novel metallic composition and method of using the same. More particularly, the invention affords a tool steel and a method of heat treating the tool steel. In one of the preferred embodiments the tool steel includes about 0.50 to about 0.65 percent by weight carbon, about 0.090 to about 1.45 percent by weight manganese, up to about 0.030 percent by weight phosphorus, about 0.035 to about 0.070 percent by weight sulfur, about 1.10 to about 1.90 percent by weight chromium, about 0.15 to about 0.40 percent by weight nickel and about 0.20 to about 0.40 percent by weight copper. In one of the preferred embodiments of the present invention the tool steel is heat treated utilizing a heat treatment schedule that includes the steps of a preheat, austenization and a double temper.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: January 26, 1993
    Assignee: Nelson & Associates Research, Inc.
    Inventor: Jerry L. Nelson
  • Metallic composition
    Patent number: 5055253
    Abstract: The invention provides a novel metallic composition and method of using the same. More particularly, the invention affords a tool steel and a method of using the tool steel. In one of the preferred embodiments the tool steel includes about 0.50 to about 0.65 percent by weight carbon, about 0.090 to about 1.45 percent by weight manganese, up to about 0.030 percent by weight phosphorus, about 0.035 to about 0.070 percent by weight sulfur, about 1.10 to about 1.90 percent by weight chromium, about 0.15 to about 0.40 percent by weight nickel, about 0.20 to about 0.40 percent by weight copper and balance percent by weight iron and impurities.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: October 8, 1991
    Assignee: Nelson & Associates Research, Inc.
    Inventor: Jerry L. Nelson