Patents Assigned to York Innovators Group, LLC
  • Foundry mixture and related methods for casting and cleaning cast metal parts
    Patent number: 10577715
    Abstract: A foundry mixture for making molds used for molding cast metal parts includes foundry sand, a non-aqueous binder, and a cleaning agent that includes calcium oxide. Residual foundry mixture remaining on the cast part after removal from the mold is removed by electrolytic cleaning of the cast part.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: March 3, 2020
    Assignee: York Innovators Group, LLC
    Inventors: John E. Hoffman, Jr., Richard A. Hoffman, Sr.
  • Foundry mixture and related methods for casting and cleaning cast metal parts
    Patent number: 9963799
    Abstract: A foundry mixture for making molds used for molding cast metal parts includes foundry sand, a non-aqueous binder, and a cleaning agent that includes calcium oxide. Residual foundry mixture remaining on the cast part after removal from the mold is removed by electrolytic cleaning of the cast part.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: May 8, 2018
    Assignee: York Innovators Group, LLC
    Inventors: John E. Hoffman, Jr., Richard A. Hoffman, Sr.