Patents Assigned to Elemelt Limited
  • Patent number: 4036625
    Abstract: This invention relates to a furnace for the melting of glass. The furnace comprises means defining an opening through which solid state batch material may be delivered into the furnace chamber and to enable the rate of withdrawal of glass to be varied without substantial alteration in the temperature of the body of molten glass, which is exposed for the reception of batch material. Thus the area of contact between the body of molten glass and the batch may be varied, to vary the rate at which the batch material is melted.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: July 19, 1977
    Assignee: Elemelt Limited
    Inventors: Charles Chamberlain Holmes, Wallace Skinner, George Roland Mattocks
  • Patent number: 4000360
    Abstract: A furnace of the kind in which molten glass is heated by electrode means defining separate respective heating zones situated in horizontally spaced regions of the furnace chamber, glass being withdrawn along a withdrawal flow path extending between the heating zones to the outlet. Additional heating means is provided to heat the glass at a locality above the withdrawal flow path in the vicinity of the outlet, producing an upward convective pressure to counteract downward entrainment effects caused by flow of glass to the outlet.
    Type: Grant
    Filed: September 5, 1975
    Date of Patent: December 28, 1976
    Assignee: Elemelt Limited
    Inventors: Philip Anthony Maunsell Gell, Douglas Graeme Hann