Patents by Inventor Paul Viret

Paul Viret 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).

  • Method of sealing glass to aluminum, particularly for electrical feed-through connectors
    Patent number: 5538527
    Abstract: An insulating electrical feed-through connector extending through a wall of aluminium is obtained by using a sintered sleeve comprising phosphate glass in which a conductive pin is inserted. The sleeve is raised to a firing temperature in excess of the dilatometric softening temperature of the vitreous material in the presence of a first effective quantity of alumina between the sleeve and the wall and of a second effective quantity of nickel oxide between the sleeve and the pin, which makes it possible to achieve a simultaneous and direct hermetic sealing of the sleeve to the wall and of the pin to the sleeve.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: July 23, 1996
    Assignee: Dassault Electronique
    Inventors: Paul Viret, Bernard Ledain
  • Aluminum based article having an insert with vitreous material hermetically sealed thereto
    Patent number: 5367125
    Abstract: An insulating electrical feed-through connector extending through a wall of aluminum is obtained by using a sintered sleeve comprising phosphate glass in which a conductive pin is inserted. The sleeve is raised to a firing temperature in excess of the dilatometric softening temperature of the vitreous material in the presence of a first effective quantity of alumina between the sleeve and the wall and of a second effective quantity of nickel oxide between the sleeve and the pin, which makes it possible to achieve a simultaneous and direct hermetic sealing of the sleeve to the wall and of the pin to the sleeve.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: November 22, 1994
    Assignee: Dassault Electronique
    Inventors: Paul Viret, Bernard Ledain