Global Patent Index - EP 1012805 A1

EP 1012805 A1 2000-06-28 - SMOKE DETECTOR

Title (en)

SMOKE DETECTOR

Title (de)

RAUCHMELDER

Title (fr)

DETECTEUR DE FUMEE

Publication

EP 1012805 A1 (DE)

Application

EP 98928058 A

Priority

  • DE 9800857 W
  • DE 19741853 A

Abstract (en)

[origin: DE19741853A1] The smoke alarm detects smoke particles passing through a detection zone (5) in a measuring chamber (6) with a sensor (7). The measuring chamber is a hollow ellipse with a mirror finish inner surface (3). The smoke particle measuring field (5) is located at the first focal point (1) within the ellipse. The sensor receiver is located at the second focal point (2) in the ellipse (3).

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

G08B 17/107

IPC 8 full level (invention and additional information)

G01N 21/53 (2006.01); G08B 17/107 (2006.01)

CPC (invention and additional information)

G08B 17/107 (2013.01); G08B 17/113 (2013.01)

Citation (search report)

See references of WO 9916033A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI LU NL PT SE

EPO simple patent family

DE 19741853 A1 19990325; AT 219592 T 20020715; AU 8007498 A 19990412; CN 1111829 C 20030618; CN 1261972 A 20000802; EP 1012805 A1 20000628; EP 1012805 B1 20020619; ES 2178839 T3 20030101; JP 2001517843 A 20011009; US 6239710 B1 20010529; WO 9916033 A1 19990401

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