GB2500885B - Signalling system - Google Patents

Signalling system

Info

Publication number
GB2500885B
GB2500885B GB1205893.9A GB201205893A GB2500885B GB 2500885 B GB2500885 B GB 2500885B GB 201205893 A GB201205893 A GB 201205893A GB 2500885 B GB2500885 B GB 2500885B
Authority
GB
United Kingdom
Prior art keywords
signalling system
signalling
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
GB1205893.9A
Other versions
GB2500885A (en
GB201205893D0 (en
Inventor
Anthony Payn
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
Priority to GB1205893.9A priority Critical patent/GB2500885B/en
Publication of GB201205893D0 publication Critical patent/GB201205893D0/en
Publication of GB2500885A publication Critical patent/GB2500885A/en
Application granted granted Critical
Publication of GB2500885B publication Critical patent/GB2500885B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
GB1205893.9A 2012-04-02 2012-04-02 Signalling system Expired - Fee Related GB2500885B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1205893.9A GB2500885B (en) 2012-04-02 2012-04-02 Signalling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1205893.9A GB2500885B (en) 2012-04-02 2012-04-02 Signalling system

Publications (3)

Publication Number Publication Date
GB201205893D0 GB201205893D0 (en) 2012-05-16
GB2500885A GB2500885A (en) 2013-10-09
GB2500885B true GB2500885B (en) 2015-08-05

Family

ID=46160209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1205893.9A Expired - Fee Related GB2500885B (en) 2012-04-02 2012-04-02 Signalling system

Country Status (1)

Country Link
GB (1) GB2500885B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319266A2 (en) * 1987-11-30 1989-06-07 Hochiki Corporation Fire alarm system
GB2342204A (en) * 1998-09-30 2000-04-05 Apollo Fire Detectors Ltd Fire alarm system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319266A2 (en) * 1987-11-30 1989-06-07 Hochiki Corporation Fire alarm system
GB2342204A (en) * 1998-09-30 2000-04-05 Apollo Fire Detectors Ltd Fire alarm system

Also Published As

Publication number Publication date
GB2500885A (en) 2013-10-09
GB201205893D0 (en) 2012-05-16

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Legal Events

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

Effective date: 20180402