Global patent index - EP 0985331 A1

EP 0985331 A1 2000-03-15 - INDUCTIVE PLASMA TORCH WITH REAGENT INJECTOR

Title (en)

INDUCTIVE PLASMA TORCH WITH REAGENT INJECTOR

Title (de)

INDUKTIVER PLASMABRENNEN MIT REAGENSINJEKTOR

Title (fr)

TORCHE A PLASMA INDUCTIF A INJECTEUR DE REACTIF

Publication

EP 0985331 A1 (FR)

Application

EP 98928393 A

Priority

  • FR 9801086 W
  • FR 9706908 A

Abstract (en)

[origin: FR2764163A1] The invention concerns an inductive plasma torch comprising an external tube, an intermediate tube and a central injector (16) including at least a central tube (20, 21) injecting reagent and a peripheral sheathing tube (22). A gas similar to plasma gas is injected into the space between the central tube (20, 21) and the sheathing tube (22), 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.

IPC 1-7 (main, further and additional classification)

H05H 1/30

IPC 8 full level (invention and additional information)

H05H 1/42 (2006.01); B22F 1/00 (2006.01); B22F 9/02 (2006.01); B22F 9/08 (2006.01); B22F 9/14 (2006.01); C01F 7/42 (2006.01); H05H 1/30 (2006.01)

CPC (invention and additional information)

B22F 9/082 (2013.01); B22F 1/0085 (2013.01); C01F 7/424 (2013.01); H05H 1/30 (2013.01); B01J 2219/0894 (2013.01)

Citation (search report)

See references of WO 9854935A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2764163 A1 19981204; FR 2764163 B1 19990813; CA 2291683 A1 19981203; EP 0985331 A1 20000315; JP 2002501661 A 20020115; JP 4320790 B2 20090826; KR 20010012941 A 20010226; US 6207924 B1 20010327; WO 9854935 A1 19981203

INPADOC legal status

2001-08-01 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20001201

2000-03-15 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991124

2000-03-15 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE