EP 0113461 A2 19840718 - Functional test means of light scattering type smoke detector.
Title (en)
Functional test means of light scattering type smoke detector.
Title (de)
Funktionelle Prüfungsmittel eines Rauchdetektors nach dem Streulichtprinzip.
Title (fr)
Moyens fonctionnels de test pour un détecteur de fumée du type à dispersion de lumière.
Publication
Application
Priority
JP 21891882 A 19821214
Abstract (en)
The test means is equipped with an optical arrangement for smoke detection comprising a light emitting element for smoke detection and a photoelectric element for smoke detection located at such a position that it does not receive the light directly from the light emitting element. The opitcal arrangement for testing comprises a light emitting element for testing and a photoelectric element for testing which directly receives the light from the light emitting element for testing.
IPC 1-7
IPC 8 full level
G01N 21/53 (2006.01); G08B 17/10 (2006.01); G08B 17/107 (2006.01); G08B 29/14 (2006.01)
CPC (source: EP)
G08B 29/145 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI NL
DOCDB simple family (publication)
EP 0113461 A2 19840718; EP 0113461 A3 19861001; EP 0113461 B1 19890802; DE 3380327 D1 19890907; JP S59108940 A 19840623; JP S648783 B2 19890215
DOCDB simple family (application)
EP 83112561 A 19831214; DE 3380327 T 19831214; JP 21891882 A 19821214