Patents by Inventor Frederick Scarfe

Frederick Scarfe 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).

  • Electrically heated forehearth
    Patent number: 4622678
    Abstract: A forehearth having a delivery channel 2 for a molten liquid (e.g. glass) 1, provided with a channel ceiling 11 of an insulating refractory ceramic fibre material and with electrical heating means 6, is capable of greatly increased efficiency in energy usage relative to conventional gas-fired forehearths.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: November 11, 1986
    Assignee: Electroglass Limited
    Inventor: Frederick Scarfe