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Current content: 159 679 824 patent documents

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164 112 new documents added

576 445 documents amended

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EP 0102288 B1 19870610 - TRAVELLING WAVE TUBE WITH SUPPRESSION MEANS FOR PARASITIC OSCILLATION

Title (en)

TRAVELLING WAVE TUBE WITH SUPPRESSION MEANS FOR PARASITIC OSCILLATION

Publication

EP 0102288 B1 19870610 (FR)

Application

EP 83401630 A 19830809

Priority

FR 8214433 A 19820820

Abstract (en)

[origin: US4559474A] The invention provides a travelling wave tube comprising means for suppressing parasite oscillations and these means are formed by auxiliary helical delay lines placed inside the sleeve in the gaps between two adjacent dielectric supports, periodically fixed to the sleeve by metal supports and without contact with the main helical delay line.

IPC 1-7

H01J 23/30

IPC 8 full level

H01J 23/30 (2006.01)

CPC (source: EP US)

H01J 23/30 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB IT NL

DOCDB simple family (publication)

EP 0102288 A1 19840307; EP 0102288 B1 19870610; DE 3372039 D1 19870716; FR 2532109 A1 19840224; FR 2532109 B1 19850524; US 4559474 A 19851217

DOCDB simple family (application)

EP 83401630 A 19830809; DE 3372039 T 19830809; FR 8214433 A 19820820; US 52362483 A 19830815