Global Patent Index - EP 1159753 A1

EP 1159753 A1 2001-12-05 - MULTIPLE BEAM ELECTRONIC TUBE WITH MINIMAL ELECTRON INTERCEPTION

Title (en)

MULTIPLE BEAM ELECTRONIC TUBE WITH MINIMAL ELECTRON INTERCEPTION

Title (de)

MEHRSTRAHLELEKTRONENRÖHRE MIT MINIMALEM ELEKTRONENAUFFANGEN

Title (fr)

TUBE ELECTRONIQUE MULTIFAISCEAU A INTERCEPTION DES ELECTRONS MINIMISEE

Publication

EP 1159753 A1 (FR)

Application

EP 99972365 A

Priority

  • FR 9902808 W
  • FR 9814482 A

Abstract (en)

[origin: FR2786022A1] The invention concerns a multiple beam electronic tube, constructed about a main axis (XX'), whereof the beams (1, 2) are generated by substantially cylindrical cathodes (3, 4), some (4) offset relative to the main axis (XX') producing offset beams (2) relative to the main axis (XX'), the beams (1, 2) passing through each of the cylindrical elements (15, 16). One cylindrical element (16) traversed by an offset beam (2) is out of alignment relative to the cathode (4) which has produced the offset beam (2), the axis (ogd) of the misaligned cylindrical element (16), substantially parallel to the main axis (XX'), being further away from the main axis (XX') than the axis (ocd) of said cathode (4).

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

H01J 25/02

IPC 8 full level (invention and additional information)

H01J 23/06 (2006.01); H01J 25/02 (2006.01)

CPC (invention and additional information)

H01J 25/02 (2013.01)

Citation (search report)

See references of WO 0030144A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

FR 2786022 A1 20000519; FR 2786022 B1 20010309; EP 1159753 A1 20011205; JP 2002530807 A 20020917; WO 0030144 A1 20000525

INPADOC legal status


2005-11-02 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050427

2004-05-19 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR GB

2001-12-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010316

2001-12-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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