Global Patent Index - EP 1080614 A1

EP 1080614 A1 2001-03-07 - APPARATUS FOR COUPLING POWER INTO A BODY OF GAS

Title (en)

APPARATUS FOR COUPLING POWER INTO A BODY OF GAS

Title (de)

VORRICHTUNG ZUM KOPPELN VON LEISTUNG IN EINEN GASKÖRPER

Title (fr)

DISPOSITIF PERMETTANT DE COUPLER DE L'ENERGIE A L'INTERIEUR D'UN CORPS GAZEUX

Publication

EP 1080614 A1 (EN)

Application

EP 99922363 A

Priority

  • GB 9901592 W
  • GB 9811081 A

Abstract (en)

[origin: WO9962308A1] Apparatus for coupling power into a body of gas by induction to provide a gas discharge, comprises a source of a/c power (3) coupled to a circuit arrangement having an inductor comprising two coils (1, 2), each constituted by a respective elongate conductor, the conductors each having one end coupled to the circuit arrangement at opposite respective sides of the inductor, and having the other end at a floating potential. The mutual capacitance between the coils, together with the inductance of the inductor as a whole, constitute a balanced self-resonant circuit having a resonant frequency which is greater than 1 MHz and less than 100 MHz. This arrangement can reduce temperature variations in the resonant frequency and can reduce unwanted r.f. emissions.

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

H05H 1/46

IPC 8 full level (invention and additional information)

H01F 38/14 (2006.01); H01J 37/32 (2006.01); H01J 65/04 (2006.01); H05H 1/46 (2006.01)

CPC (invention and additional information)

H01J 37/321 (2013.01); H01J 65/048 (2013.01); H05H 1/46 (2013.01)

Citation (search report)

See references of WO 9962308A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9962308 A1 19991202; CA 2332860 A1 19991202; EP 1080614 A1 20010307; GB 9811081 D0 19980722; JP 2002517079 A 20020611

INPADOC legal status


2003-01-22 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020713

2002-01-16 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011130

2001-03-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001215

2001-03-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB