GB2138191B - Alarm system - Google Patents

Alarm system

Info

Publication number
GB2138191B
GB2138191B GB08409856A GB8409856A GB2138191B GB 2138191 B GB2138191 B GB 2138191B GB 08409856 A GB08409856 A GB 08409856A GB 8409856 A GB8409856 A GB 8409856A GB 2138191 B GB2138191 B GB 2138191B
Authority
GB
United Kingdom
Prior art keywords
alarm system
alarm
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
Application number
GB08409856A
Other versions
GB2138191A (en
GB8409856D0 (en
Inventor
Philip Davies
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
Priority claimed from GB838310208A external-priority patent/GB8310208D0/en
Application filed by Individual filed Critical Individual
Priority to GB08409856A priority Critical patent/GB2138191B/en
Publication of GB8409856D0 publication Critical patent/GB8409856D0/en
Publication of GB2138191A publication Critical patent/GB2138191A/en
Application granted granted Critical
Publication of GB2138191B publication Critical patent/GB2138191B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • G08B19/005—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow combined burglary and fire alarm systems
GB08409856A 1983-04-15 1984-04-16 Alarm system Expired GB2138191B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08409856A GB2138191B (en) 1983-04-15 1984-04-16 Alarm system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838310208A GB8310208D0 (en) 1983-04-15 1983-04-15 Alarm system
GB08409856A GB2138191B (en) 1983-04-15 1984-04-16 Alarm system

Publications (3)

Publication Number Publication Date
GB8409856D0 GB8409856D0 (en) 1984-05-23
GB2138191A GB2138191A (en) 1984-10-17
GB2138191B true GB2138191B (en) 1987-04-01

Family

ID=26285835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08409856A Expired GB2138191B (en) 1983-04-15 1984-04-16 Alarm system

Country Status (1)

Country Link
GB (1) GB2138191B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB223674A (en) * 1923-07-31 1924-10-30 Walter Draper Improvements in or relating to electrically-operated burglar alarm systems

Also Published As

Publication number Publication date
GB2138191A (en) 1984-10-17
GB8409856D0 (en) 1984-05-23

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Legal Events

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