Patents by Inventor Francis J. Oschell

Francis J. Oschell 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).

  • Alkanolamines as cold-end additives
    Patent number: 4168291
    Abstract: A method of reducing the amount of sulfur trioxide condensation on, and therefore the amount of sulfuric acid corrosion of, metal parts at the cold-end of a combustion system and in contact with combustion gases derived from the combustion of sulfur containing fuel, said method comprising adding to the combustion gases an effective amount for the purpose of an aliphatic, water-soluble alkanolamine additive.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: September 18, 1979
    Assignee: Betz Laboratories, Inc.
    Inventors: Bruce L. Libutti, Francis J. Oschell
  • Sodium metasilicate as cold-end additive
    Patent number: 4140750
    Abstract: This invention is directed to a method of reducing the amount of sulfur trioxide condensation on, and therefore the amount of sulfuric acid corrosion of, metal parts at the cold-end of a combustion system and in contact with combustion gases derived from the combustion of sulfur-containing fuel, said method comprising adding to the combustion gases an effective amount for the purpose of sodium metasilicate.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: February 20, 1979
    Assignee: Betz Laboratories, Inc.
    Inventor: Francis J. Oschell
  • Aqueous solution of sodium aluminate and N-aminoethyl ethanolamine as a cold end additive
    Patent number: 4134729
    Abstract: A method of reducing the amount of sulfur trioxide condensation on, and therefore the amount of sulfuric acid corrosion of, metal parts at the cold-end of a combustion system in contact with combustion gases derived from the combustion of sulfur-containing fuel, said method comprising adding to the combustion gases an effective amount for the purpose of an aqueous solution of sodium aluminate and an alkanolamine, particularly N-aminoethyl ethanolamine.
    Type: Grant
    Filed: September 8, 1977
    Date of Patent: January 16, 1979
    Assignee: Betz Laboratories, Inc.
    Inventors: Bruce L. Libutti, Francis J. Oschell
  • N-aminoethyl ethanolamine as a cold-end additive
    Patent number: 4134728
    Abstract: A method of reducing the amount of sulfur trioxide condensation on, and therefore the amount of sulfuric acid corrosion of, metal parts at the cold-end of a combustion system and in contact with combustion gases derived from the combustion of sulfur containing fuel, said method comprising adding to the combustion gases an effective amount for the purpose of an alkanolamine additive particularly N-aminoethyl ethanolamine.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: January 16, 1979
    Assignee: Betz Laboratories, Inc.
    Inventors: Bruce L. Libutti, Francis J. Oschell
  • Aqueous solution of sodium metasilicate and N-aminoethyl ethanolamine as a cold-end additive
    Patent number: 4134727
    Abstract: A method of reducing the amount of sulfur trioxide condensation on, and therefore the amount of sulfuric acid corrosion of, metal parts at the cold-end of a combustion system in contact with combustion gases derived from the combustion of sulfur-containing fuel, said method comprising adding to the combustion gases an effective amount for the purpose of an aqueous solution of sodium metasilicate and an alkanolamine, particularly N-aminoethyl ethanolamine.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: January 16, 1979
    Assignee: Betz Laboratories, Inc.
    Inventors: Francis J. Oschell, Bruce L. Libutti