The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 1993
Filed:
Mar. 30, 1992
Pelletier, Jacques H, Saint Martin d'Heres, FR;
Yves A Arnal, Poisat, FR;
Michel Pichot, Grenoble, FR;
Centre National de la Recherche Scientifique, Paris, FR;
L'Etat Francais, represents par aux Postes et Telecommunications, Issy les Moulineaux, FR;
Abstract
A device for coupling microwave energy with at least one exciter, and for distributing it therealong for the purpose of producing a plasma, includes a first enclosure whose inside is bathed in microwave energy, a second enclosure containing a gaseous medium to be ionized, and a first series of at least one communication passage between the two enclosures. An exciter is mounted to pass through each communication passage at a distance from the inside surfaces and to extend into the first and second enclosures in order to couple with a portion of the microwave energy and convey the coupled microwave energy locally into association with the gaseous medium. The exciter constitutes, together with the passage and portions of the sidewalls of the enclosures facing the exciter, a coaxial-type structure.