GB2368997B - Audible warning devices - Google Patents

Audible warning devices

Info

Publication number
GB2368997B
GB2368997B GB0017477A GB0017477A GB2368997B GB 2368997 B GB2368997 B GB 2368997B GB 0017477 A GB0017477 A GB 0017477A GB 0017477 A GB0017477 A GB 0017477A GB 2368997 B GB2368997 B GB 2368997B
Authority
GB
United Kingdom
Prior art keywords
audible warning
warning devices
audible
devices
warning
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 - Fee Related
Application number
GB0017477A
Other versions
GB0017477D0 (en
GB2368997A (en
Inventor
John Lewinsky
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.)
RAFIKI HOLDINGS Ltd
RAFIKI PROT Ltd
Original Assignee
RAFIKI HOLDINGS Ltd
RAFIKI PROT Ltd
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
Application filed by RAFIKI HOLDINGS Ltd, RAFIKI PROT Ltd filed Critical RAFIKI HOLDINGS Ltd
Priority to GB0017477A priority Critical patent/GB2368997B/en
Publication of GB0017477D0 publication Critical patent/GB0017477D0/en
Priority to EP01305973A priority patent/EP1174835A3/en
Publication of GB2368997A publication Critical patent/GB2368997A/en
Application granted granted Critical
Publication of GB2368997B publication Critical patent/GB2368997B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
GB0017477A 2000-07-18 2000-07-18 Audible warning devices Expired - Fee Related GB2368997B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0017477A GB2368997B (en) 2000-07-18 2000-07-18 Audible warning devices
EP01305973A EP1174835A3 (en) 2000-07-18 2001-07-11 Audible warning devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0017477A GB2368997B (en) 2000-07-18 2000-07-18 Audible warning devices

Publications (3)

Publication Number Publication Date
GB0017477D0 GB0017477D0 (en) 2000-08-30
GB2368997A GB2368997A (en) 2002-05-15
GB2368997B true GB2368997B (en) 2005-05-11

Family

ID=9895779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0017477A Expired - Fee Related GB2368997B (en) 2000-07-18 2000-07-18 Audible warning devices

Country Status (2)

Country Link
EP (1) EP1174835A3 (en)
GB (1) GB2368997B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388995B (en) 2002-05-23 2004-06-30 Gent Ltd Improvements in and relating to alarms
US7369061B1 (en) * 2004-10-05 2008-05-06 Steven Sellers Vehicle locator device
US20110260875A1 (en) * 2010-04-21 2011-10-27 Koninklijke Philips Electronics, N.V. Alert device and method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1555538A (en) * 1977-07-05 1979-11-14 Madewel Products Ltd Electronic audio alarm
GB1575550A (en) * 1976-10-15 1980-09-24 Mallory & Co Inc C Audible alarm devices
US4275388A (en) * 1980-01-09 1981-06-23 General Electric Company Piezoelectric audible alarm frequency self-calibration system
GB2101452A (en) * 1981-06-19 1983-01-12 Ricoh Kk Buzzer
DE3147364A1 (en) * 1981-11-30 1983-06-01 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for an audible signal generator
US4397210A (en) * 1981-12-11 1983-08-09 Cbs Inc. Rhythm sound generator
US4401975A (en) * 1981-11-19 1983-08-30 General Signal Corporation Electrical synthesis of mechanical bell
US5414406A (en) * 1992-04-21 1995-05-09 Sparton Corporation Self-tuning vehicle horn

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293149A (en) * 1991-04-12 1994-03-08 Sparton Corporation Vehicle horn with electronic solid state energizing circuit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1575550A (en) * 1976-10-15 1980-09-24 Mallory & Co Inc C Audible alarm devices
GB1555538A (en) * 1977-07-05 1979-11-14 Madewel Products Ltd Electronic audio alarm
US4275388A (en) * 1980-01-09 1981-06-23 General Electric Company Piezoelectric audible alarm frequency self-calibration system
GB2101452A (en) * 1981-06-19 1983-01-12 Ricoh Kk Buzzer
US4401975A (en) * 1981-11-19 1983-08-30 General Signal Corporation Electrical synthesis of mechanical bell
DE3147364A1 (en) * 1981-11-30 1983-06-01 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for an audible signal generator
US4397210A (en) * 1981-12-11 1983-08-09 Cbs Inc. Rhythm sound generator
US5414406A (en) * 1992-04-21 1995-05-09 Sparton Corporation Self-tuning vehicle horn

Also Published As

Publication number Publication date
GB0017477D0 (en) 2000-08-30
EP1174835A3 (en) 2003-03-05
GB2368997A (en) 2002-05-15
EP1174835A2 (en) 2002-01-23

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160718