EP 0024267 A1 19810225 - Underwater acoustic beacon.
Title (en)
Underwater acoustic beacon.
Title (de)
Akustische Unterwasserbake.
Title (fr)
Balise acoustique sousmarine.
Publication
Application
Priority
NO 792250 A 19790706
Abstract (en)
Acoustic marker for use at sea arranged in a pipe-shaped housing (11). In the one end there is space for a battery (12) which drives a transmitter (31) disposed coaxially around the housing at the other end, where there is arranged a pressure switch (24) covered by a membrane (27). The transmitter is switched on by the pressure switch when the pressure on the outside of the membrane exceeds a certain limit on the marker falling in water.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Citation (search report)
US 3686656 A 19720822 - RICHARDS CHARLES D
Designated contracting state (EPC)
AT BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0024267 A1 19810225; CA 1151281 A 19830802; DK 288580 A 19810107; FI 802114 A 19810107; GR 69635 B 19820706; NO 792250 L 19810107
DOCDB simple family (application)
EP 80850109 A 19800704; CA 355498 A 19800704; DK 288580 A 19800704; FI 802114 A 19800702; GR 800162375 A 19800704; NO 792250 A 19790706