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:
Mar. 27, 2001
Filed:
Feb. 16, 2000
Applicant:
Inventor:
Christian Trassy, Grenoble, FR;
Assignee:
Centre National de la Recherche Scientifique, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 1/000 ;
U.S. Cl.
CPC ...
B23K 1/000 ;
Abstract
The invention concerns an inductive plasma torch comprising an external tube, an intermediate tube and a central injector (,) including at least a central tube (,) injecting reagent and a peripheral sheathing tube (,). A gas similar to plasma gas is injected into the space between the central tube (,) and the sheathing tube (,), in conditions suited for obtaining a laminar flow, said flow remaining laminar up to the plasma torch central zone. The sheathing tube emerges substantially at the first turn of the inductor coil.