GB2160004B - Improvements relating to audible warning devices - Google Patents

Improvements relating to audible warning devices

Info

Publication number
GB2160004B
GB2160004B GB08506451A GB8506451A GB2160004B GB 2160004 B GB2160004 B GB 2160004B GB 08506451 A GB08506451 A GB 08506451A GB 8506451 A GB8506451 A GB 8506451A GB 2160004 B GB2160004 B GB 2160004B
Authority
GB
United Kingdom
Prior art keywords
improvements relating
audible warning
warning devices
audible
devices
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB08506451A
Other versions
GB8506451D0 (en
GB2160004A (en
Inventor
Patrick Joseph Lally
George Albert Willi Sturtivant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB848406717A external-priority patent/GB8406717D0/en
Priority claimed from GB848414391A external-priority patent/GB8414391D0/en
Application filed by Individual filed Critical Individual
Publication of GB8506451D0 publication Critical patent/GB8506451D0/en
Publication of GB2160004A publication Critical patent/GB2160004A/en
Application granted granted Critical
Publication of GB2160004B publication Critical patent/GB2160004B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Emergency Alarm Devices (AREA)
GB08506451A 1984-03-15 1985-03-13 Improvements relating to audible warning devices Expired GB2160004B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848406717A GB8406717D0 (en) 1984-03-15 1984-03-15 Audible warning devices
GB848414391A GB8414391D0 (en) 1984-06-06 1984-06-06 Audible warning devices

Publications (3)

Publication Number Publication Date
GB8506451D0 GB8506451D0 (en) 1985-04-17
GB2160004A GB2160004A (en) 1985-12-11
GB2160004B true GB2160004B (en) 1988-03-30

Family

ID=26287455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08506451A Expired GB2160004B (en) 1984-03-15 1985-03-13 Improvements relating to audible warning devices

Country Status (1)

Country Link
GB (1) GB2160004B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422308C2 (en) * 1994-06-17 2000-01-13 Zoellner Gmbh Automatic rotten warning device
DE19738568C1 (en) * 1997-09-04 1999-03-11 Stein Gmbh Method and device for warning people
FR2857138B1 (en) * 2003-07-04 2008-09-12 Philippe Raphael Andre Roberge DEVICE FOR DETECTION OF MOBILE ELEMENTS ENABLING THE ACTIVATION OF ONE OR MORE LIGHT SIGNALS AND THE EMISSION OF ONE OR MORE VOICE MESSAGES FOLLOWING A PROGRAMMABLE SEQUENCE WITH SOUND MODULATION
FR3027148B1 (en) * 2014-10-08 2016-12-09 Serfim SITE SIGNALING AND GUIDING DEVICE FOR VISUAL DEFICIENT PERSON

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316915A (en) * 1928-05-03 1929-08-06 Francis George Bell Improvements in or relating to audible warning and signalling devices
GB1166977A (en) * 1967-06-26 1969-10-15 Atomic Energy Commission Radio-Frequency Radiation Monitor
GB1412457A (en) * 1971-12-27 1975-11-05 Sumitomo Electric Industries Sound generator comprising a piezoelectric acoustic device
GB1549262A (en) * 1975-06-23 1979-08-01 Kokusai Electric Co Ltd Guidance for blind pedestrians
GB2084783B (en) * 1980-10-02 1985-06-19 Production Eng Res Audio system
GB2099196A (en) * 1981-05-22 1982-12-01 Hayden Nilos Conflow Ltd Warning devices

Also Published As

Publication number Publication date
GB8506451D0 (en) 1985-04-17
GB2160004A (en) 1985-12-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980313