GB2449257B - Detector - Google Patents

Detector

Info

Publication number
GB2449257B
GB2449257B GB0709280.2A GB0709280A GB2449257B GB 2449257 B GB2449257 B GB 2449257B GB 0709280 A GB0709280 A GB 0709280A GB 2449257 B GB2449257 B GB 2449257B
Authority
GB
United Kingdom
Prior art keywords
detector
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.)
Active
Application number
GB0709280.2A
Other versions
GB0709280D0 (en
GB2449257A (en
Inventor
Kieron Chapman
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.)
FIRCROFT CONSULTING Ltd
Original Assignee
FIRCROFT CONSULTING 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 FIRCROFT CONSULTING Ltd filed Critical FIRCROFT CONSULTING Ltd
Priority to GB0709280.2A priority Critical patent/GB2449257B/en
Publication of GB0709280D0 publication Critical patent/GB0709280D0/en
Priority to PCT/GB2008/001650 priority patent/WO2008139183A1/en
Publication of GB2449257A publication Critical patent/GB2449257A/en
Application granted granted Critical
Publication of GB2449257B publication Critical patent/GB2449257B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings
GB0709280.2A 2007-05-14 2007-05-14 Detector Active GB2449257B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0709280.2A GB2449257B (en) 2007-05-14 2007-05-14 Detector
PCT/GB2008/001650 WO2008139183A1 (en) 2007-05-14 2008-05-13 Detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0709280.2A GB2449257B (en) 2007-05-14 2007-05-14 Detector

Publications (3)

Publication Number Publication Date
GB0709280D0 GB0709280D0 (en) 2007-06-20
GB2449257A GB2449257A (en) 2008-11-19
GB2449257B true GB2449257B (en) 2012-01-04

Family

ID=38219404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0709280.2A Active GB2449257B (en) 2007-05-14 2007-05-14 Detector

Country Status (2)

Country Link
GB (1) GB2449257B (en)
WO (1) WO2008139183A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019234376A1 (en) * 2018-06-05 2019-12-12 Electronic Modular Services Ltd. Smoke chamber as audio chamber in audible alarm devices
JP7165861B2 (en) * 2018-06-28 2022-11-07 パナソニックＩｐマネジメント株式会社 alarm

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322727A (en) * 1997-02-27 1998-09-02 Fulleon Ltd Sounder device
GB2421620A (en) * 2004-12-23 2006-06-28 Kieron T N Chapman Fire alarm sounder
WO2006120731A1 (en) * 2005-05-10 2006-11-16 Hochiki Corporation Alarm outputting apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200508999A (en) * 2003-08-20 2005-03-01 Clipsal Australia Pty Ltd A compact smoke alarm

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322727A (en) * 1997-02-27 1998-09-02 Fulleon Ltd Sounder device
GB2421620A (en) * 2004-12-23 2006-06-28 Kieron T N Chapman Fire alarm sounder
WO2006120731A1 (en) * 2005-05-10 2006-11-16 Hochiki Corporation Alarm outputting apparatus
EP1881470A1 (en) * 2005-05-10 2008-01-23 Hochiki Corporation Alarm outputting apparatus

Also Published As

Publication number Publication date
GB0709280D0 (en) 2007-06-20
GB2449257A (en) 2008-11-19
WO2008139183A1 (en) 2008-11-20

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Legal Events

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

Effective date: 20220514

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: 20240104