Patents Assigned to Vermont
  • Mixture for the production of an amber glass, amber glass, method for the production of tubes and blanks of tinted bulbs, and tinted bulbs obtained with said glass
    Patent number: 7754628
    Abstract: The invention relates to a mixture for the production of a vat-dyed amber glass; an amber glass formed from the vitrifiable mixture, based on a silico-sodo-calcic composition; and a method for the production of tubes and blanks (2) for bulbs (1) using said glass. The mixture contains 100% by weight of the following ingredients: 0.01%-1% by weight molybdenum bisulphur and 0.01%-7% strontium sulphur by weight. The glass thus obtained is devoid of harmful products such as cadmium and no additional heat treatment is required in order to obtain the desired colour thereof.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: July 13, 2010
    Assignee: Vermont
    Inventors: Christian Lefevre, François Lepesqueux
  • Red glass, process for manufacturing red glass, and tinted bulbs and tubes obtained with such a glass
    Patent number: 7612003
    Abstract: The invention relates to a bulk-tinted red glass formed from a glass batch based on a soda-lime-silica composition, to a process for manufacturing red glass and to a bulb obtained from a blank or a tube manufactured with such a glass. The batch comprises, per 100% by weight of the batch, 0.1 to 1% by weight of copper, 0.2 to 2% by weight of tin and 0.01 to 2.5% by weight of oxide of the lanthanide group and/or 0.01 to 0.5% by weight of silver in silver oxide or nitrate form.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: November 3, 2009
    Assignee: Vermont
    Inventors: Christian Lefevre, Francois Lepesqueux
  • Mixture For The Production Of An Amber Glass, Amber Glass, Method For The Production Of Tubes And Blanks Of Tinted Bulbs, And Tinted Bulbs Obtained With Said Glass
    Publication number: 20080024066
    Abstract: The invention relates to a mixture for the production of a vat-dyed amber glass; an amber glass formed from the vitrifiable mixture, based on a silico-sodo-calcic composition; and a method for the production of tubes and blanks (2) for bulbs (1) using said glass. The mixture contains 100% by weight of the following ingredients: 0.01%-1% by weight molybdenum bisulphur and 0.01%-7% strontium sulphur by weight. The glass thus obtained is devoid of harmful products such as cadmium and no additional heat treatment is required in order to obtain the desired colour thereof.
    Type: Application
    Filed: December 24, 2004
    Publication date: January 31, 2008
    Applicant: VERMONT
    Inventors: Christian Lefevre, Francois Lepesqueux
  • Red glass, process for manufacturing red glass, and tinted bulbs and tubes obtained with such a glass
    Publication number: 20070021288
    Abstract: The invention relates to a bulk-tinted red glass formed from a glass batch based on a soda-lime-silica composition, to a process for manufacturing red glass and to a bulb obtained from a blank or a tube manufactured with such a glass. The batch comprises, per 100% by weight of the batch, 0.1 to 1% by weight of copper, 0.2 to 2% by weight of tin and 0.01 to 2.5% by weight of oxide of the lanthanide group and/or 0.01 to 0.5% by weight of silver in silver oxide or nitrate form.
    Type: Application
    Filed: July 20, 2006
    Publication date: January 25, 2007
    Applicant: Vermont
    Inventors: Christian Lefevre, Francois Lepesqueux