Patents Assigned to Monofrax Inc.
  • Process for making fused-cast refractory products
    Patent number: 5738811
    Abstract: The melt produced in a furnace during the course of making a fused-cast refractory product is effectively treated with a beneficiating gas by injecting the gas in a substantially continuous manner through a tuyere extended beneath the surface of the melt throughout a production campaign and supporting the gas injection between campaigns.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: April 14, 1998
    Assignee: Monofrax Inc.
    Inventors: Joseph D. Gagel, William C. Parisi, Dean M. Thomas