GB2138191B - Alarm system - Google Patents
Alarm systemInfo
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
- Fire Alarms (AREA)
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)
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 |
-
1984
- 1984-04-16 GB GB08409856A patent/GB2138191B/en not_active Expired
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 |