Patents by Inventor Francois Hubert

Francois Hubert 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).

  • Manufacture of gas filled envelopes
    Patent number: 4204721
    Abstract: A method of manufacturing a hermetically sealed envelope comprising assembling envelope-forming components of which at least one is a vitreous wall forming component wherein the or each vitreous component is metallized along a zone where it is to be bonded by solder to form a sealing joint. Such sealing is effected while the assembly 13 of envelope-forming components is within a hermetically sealable chamber 1 e.g. using heating devices 11, 12. The chamber may be evacuated via exhaust port 7 and valve 9 and optionally filled with a gas other than air via inlet port 4 and valve 6.
    Type: Grant
    Filed: October 17, 1978
    Date of Patent: May 27, 1980
    Assignee: B.F.G. Glassgroup
    Inventors: Francois Hubert, Michel Laurent, Lucien Leger