Patents by Inventor Claude Beaudry

Claude Beaudry 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).

  • Devices and methods of using HF waves to energize a column of gas enclosed in an insulating casing
    Patent number: 4049940
    Abstract: A device which generates plasma by energizing a column of gas with a high frequency periodic electric field of a frequency of at least 100MHz. The generating means extends over only a part of the gas column and the power of the energizing field is such that the plasma generated includes and extends beyond said part of the gas column. In one embodiment the gas column is contained in an elongated insulating casing and the generating means comprises a first metallic tube open at both ends and surrounding a part of the casing, a second tube enclosing the first, and a connecting ring between the first and second tubes.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: September 20, 1977
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Michel Moisan, Philippe Leprince, Claude Beaudry, Emile Bloyet