GB2346758B - Audible warning devices - Google Patents

Audible warning devices

Info

Publication number
GB2346758B
GB2346758B GB9902821A GB9902821A GB2346758B GB 2346758 B GB2346758 B GB 2346758B GB 9902821 A GB9902821 A GB 9902821A GB 9902821 A GB9902821 A GB 9902821A GB 2346758 B GB2346758 B GB 2346758B
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
GB9902821A
Other versions
GB9902821D0 (en
GB2346758A (en
Inventor
Manhar Amlani
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
Original Assignee
RAFIKI HOLDINGS 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 filed Critical RAFIKI HOLDINGS Ltd
Priority to GB9902821A priority Critical patent/GB2346758B/en
Publication of GB9902821D0 publication Critical patent/GB9902821D0/en
Publication of GB2346758A publication Critical patent/GB2346758A/en
Application granted granted Critical
Publication of GB2346758B publication Critical patent/GB2346758B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • 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)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Alarm Systems (AREA)
GB9902821A 1999-02-10 1999-02-10 Audible warning devices Expired - Fee Related GB2346758B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9902821A GB2346758B (en) 1999-02-10 1999-02-10 Audible warning devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9902821A GB2346758B (en) 1999-02-10 1999-02-10 Audible warning devices

Publications (3)

Publication Number Publication Date
GB9902821D0 GB9902821D0 (en) 1999-03-31
GB2346758A GB2346758A (en) 2000-08-16
GB2346758B true GB2346758B (en) 2003-07-30

Family

ID=10847360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9902821A Expired - Fee Related GB2346758B (en) 1999-02-10 1999-02-10 Audible warning devices

Country Status (1)

Country Link
GB (1) GB2346758B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2837951A1 (en) * 1978-08-31 1980-03-13 Schaltbau Gmbh CIRCUIT FOR AN ELECTRICAL, CONTACTLESS, ACOUSTIC SIGNALER

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2837951A1 (en) * 1978-08-31 1980-03-13 Schaltbau Gmbh CIRCUIT FOR AN ELECTRICAL, CONTACTLESS, ACOUSTIC SIGNALER

Also Published As

Publication number Publication date
GB9902821D0 (en) 1999-03-31
GB2346758A (en) 2000-08-16

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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: 20110210

S28 Restoration of ceased patents (sect. 28/pat. act 1977)

Free format text: APPLICATION FILED

S28 Restoration of ceased patents (sect. 28/pat. act 1977)

Free format text: RESTORATION ALLOWED

Effective date: 20120607

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140210