GB2272987B - Alarm systems - Google Patents

Alarm systems

Info

Publication number
GB2272987B
GB2272987B GB9321271A GB9321271A GB2272987B GB 2272987 B GB2272987 B GB 2272987B GB 9321271 A GB9321271 A GB 9321271A GB 9321271 A GB9321271 A GB 9321271A GB 2272987 B GB2272987 B GB 2272987B
Authority
GB
United Kingdom
Prior art keywords
alarm systems
alarm
systems
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
GB9321271A
Other versions
GB2272987A (en
GB2272987A8 (en
GB9321271D0 (en
Inventor
John Alfred Worthington
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
Application filed by Individual filed Critical Individual
Publication of GB9321271D0 publication Critical patent/GB9321271D0/en
Publication of GB2272987A publication Critical patent/GB2272987A/en
Publication of GB2272987A8 publication Critical patent/GB2272987A8/en
Application granted granted Critical
Publication of GB2272987B publication Critical patent/GB2272987B/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
    • G08B3/06—Audible signalling systems; Audible personal calling systems using hydraulic transmission; using pneumatic 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
    • G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air
GB9321271A 1992-10-15 1993-10-14 Alarm systems Expired - Fee Related GB2272987B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929221623A GB9221623D0 (en) 1992-10-15 1992-10-15 Improvements to gas powered portable alarms

Publications (4)

Publication Number Publication Date
GB9321271D0 GB9321271D0 (en) 1993-12-01
GB2272987A GB2272987A (en) 1994-06-01
GB2272987A8 GB2272987A8 (en) 1996-08-13
GB2272987B true GB2272987B (en) 1996-10-23

Family

ID=10723470

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929221623A Pending GB9221623D0 (en) 1992-10-15 1992-10-15 Improvements to gas powered portable alarms
GB9321271A Expired - Fee Related GB2272987B (en) 1992-10-15 1993-10-14 Alarm systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB929221623A Pending GB9221623D0 (en) 1992-10-15 1992-10-15 Improvements to gas powered portable alarms

Country Status (4)

Country Link
EP (1) EP0664918A1 (en)
AU (1) AU5283193A (en)
GB (2) GB9221623D0 (en)
WO (1) WO1994009479A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9401218L (en) * 1994-04-12 1995-10-13 Mw Trading Aps alarm tag
SE513523C2 (en) * 1995-10-12 2000-09-25 Mw Trading Uk Ltd alarm tag
CN110047457A (en) * 2018-05-29 2019-07-23 杭州俊士铁路设备有限公司 Mini train steam whistle
CA3160182A1 (en) * 2019-11-18 2021-05-27 Rai Strategic Holdings, Inc. Security tag

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778318A (en) * 1955-01-11 1957-07-03 Fyr Larm Co Inc Improvements in or relating to temperature responsive signalling device
GB1316180A (en) * 1970-03-20 1973-05-09 Falcon Safety Prod Power-operated acoustic means
GB1422836A (en) * 1973-12-06 1976-01-28 Watsco Inc Air horn
US4044712A (en) * 1976-05-07 1977-08-30 Manuel Goodman Pressurized fluid powered horn
GB1488697A (en) * 1973-10-12 1977-10-12 Dupont S T Apparatus for the storage of liquefied gas in an adsorbent support having open cells
GB1502008A (en) * 1974-12-02 1978-02-22 Petterson T Unattended automatic dispenser valves for pressurised aerosol dispensers
US4125084A (en) * 1977-09-06 1978-11-14 Muckle Manufacturing Division Builders Iron Products, Inc. Fire extinguisher alarm
GB2020465A (en) * 1978-05-09 1979-11-14 Gen Time Corp Intruder alarm
GB2021698A (en) * 1978-05-05 1979-12-05 Valois Sa Aerosol valve with improved vapor mixing
US4998499A (en) * 1989-12-28 1991-03-12 Nordbeck Ellis L Underwater pneumatic horn

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127202A (en) * 1982-08-31 1984-04-04 Strongman Security Products Li Alarm device
FR2620843B3 (en) * 1987-09-17 1990-11-09 Barbot Patrick AUTOMATIC PARALYZING GAS DIFFUSER FOR THEFT PROTECTION SYSTEMS
WO1989009984A1 (en) * 1988-04-08 1989-10-19 Scientific Generics Limited Antipilferage tags and their use

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778318A (en) * 1955-01-11 1957-07-03 Fyr Larm Co Inc Improvements in or relating to temperature responsive signalling device
GB1316180A (en) * 1970-03-20 1973-05-09 Falcon Safety Prod Power-operated acoustic means
GB1488697A (en) * 1973-10-12 1977-10-12 Dupont S T Apparatus for the storage of liquefied gas in an adsorbent support having open cells
GB1422836A (en) * 1973-12-06 1976-01-28 Watsco Inc Air horn
GB1502008A (en) * 1974-12-02 1978-02-22 Petterson T Unattended automatic dispenser valves for pressurised aerosol dispensers
US4044712A (en) * 1976-05-07 1977-08-30 Manuel Goodman Pressurized fluid powered horn
US4125084A (en) * 1977-09-06 1978-11-14 Muckle Manufacturing Division Builders Iron Products, Inc. Fire extinguisher alarm
GB2021698A (en) * 1978-05-05 1979-12-05 Valois Sa Aerosol valve with improved vapor mixing
GB2020465A (en) * 1978-05-09 1979-11-14 Gen Time Corp Intruder alarm
US4998499A (en) * 1989-12-28 1991-03-12 Nordbeck Ellis L Underwater pneumatic horn

Also Published As

Publication number Publication date
GB9221623D0 (en) 1992-11-25
GB2272987A (en) 1994-06-01
AU5283193A (en) 1994-05-09
GB2272987A8 (en) 1996-08-13
GB9321271D0 (en) 1993-12-01
WO1994009479A3 (en) 1994-08-04
EP0664918A1 (en) 1995-08-02
WO1994009479A2 (en) 1994-04-28

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Legal Events

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

Effective date: 20041014