Patents by Inventor Janis Ingebrigtsen

Janis Ingebrigtsen 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).

  • Process for preparing olivine sand cores and molds
    Patent number: 4522799
    Abstract: A hydrogel binder for a foundry aggregate comprising, in combination, a metal silico-phosphate and as a hardener therefor a mixture of aluminum dihydrogen phosphate, water and phosphoric acid.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: June 11, 1985
    Assignee: International Minerals & Chemical Corp.
    Inventors: Charles E. Seeney, John F. Kraemer, Janis Ingebrigtsen
  • Binder for preparing improved cores and molds
    Patent number: 4423764
    Abstract: An improved binder for a foundry aggregate comprising aluminum dihydrogen phosphate in combination with ammonium polyphosphate, potassium polyphosphate, potassium olivine phosphate, volcanic ash, sodium silicate, phosphoric acid or mixtures thereof.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: January 3, 1984
    Assignee: International Minerals & Chemical Corp.
    Inventors: Charles E. Seeney, John F. Kraemer, Janis Ingebrigtsen
  • Process for preparing olivine sand cores and molds
    Patent number: 4422496
    Abstract: An inorganic cement binder for a foundry aggregate comprising, in combination, potassium olivine phosphate and as a hardener therefor, water, aqueous sodium silicate, or aqueous phosphoric acid.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: December 27, 1983
    Assignee: International Minerals & Chemical Corp.
    Inventors: Charles E. Seeney, John F. Kraemer, Janis Ingebrigtsen
  • Process for preparing olivine sand cores and molds
    Patent number: 4396431
    Abstract: An inorganic cement binder for a foundry aggregate comprising, in combination, potassium olivine phosphate and as a hardener therefor, water, aqueous sodium silicate, or aqueous phosphoric acid.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: August 2, 1983
    Assignee: International Minerals & Chemical Corporation
    Inventors: Charles E. Seeney, John F. Kraemer, Janis Ingebrigtsen
  • Metal silico-phosphate binders and foundry shapes produced therefrom
    Patent number: 4383861
    Abstract: A hydrogel binder for a foundry aggregate comprising, in combination, a metal silico-phosphate and as a hardener therefor a mixture of aluminum dihydrogen phosphate, water and phosphoric acid and a process for manufacturing molds and cores from same.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: May 17, 1983
    Assignee: International Minerals & Chemical Corp.
    Inventors: Charles E. Seeney, John F. Kraemer, Janis Ingebrigtsen