GB2225469B - Barrier - Google Patents
BarrierInfo
- Publication number
- GB2225469B GB2225469B GB8822501A GB8822501A GB2225469B GB 2225469 B GB2225469 B GB 2225469B GB 8822501 A GB8822501 A GB 8822501A GB 8822501 A GB8822501 A GB 8822501A GB 2225469 B GB2225469 B GB 2225469B
- Authority
- GB
- United Kingdom
- Prior art keywords
- barrier
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8822501A GB2225469B (en) | 1988-09-24 | 1988-09-24 | Barrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8822501A GB2225469B (en) | 1988-09-24 | 1988-09-24 | Barrier |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8822501D0 GB8822501D0 (en) | 1988-10-26 |
GB2225469A GB2225469A (en) | 1990-05-30 |
GB2225469B true GB2225469B (en) | 1992-10-21 |
Family
ID=10644203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8822501A Expired - Lifetime GB2225469B (en) | 1988-09-24 | 1988-09-24 | Barrier |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2225469B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2247095B (en) * | 1990-07-27 | 1994-08-03 | Tensator Ltd | An alarm system for a barrier |
GB2266983B (en) * | 1992-05-12 | 1996-11-13 | Paul Barker | Alarmed Barrier |
DE102007021484A1 (en) * | 2007-05-08 | 2008-11-13 | Eberlein, Herbert, Dipl.-Ing. (FH) | Locking device for person passageway, has stationary device equipped with detection device, where detection device is detecting longitudinal movement of belt with aid of contact unit and warning device is activated by detection process |
US8176677B1 (en) * | 2008-02-27 | 2012-05-15 | Blackmon Iii Baron H | Automated guide rail apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3887910A (en) * | 1972-11-15 | 1975-06-03 | Vernon H Jones | Burglar alarm |
GB2016777A (en) * | 1978-02-10 | 1979-09-26 | Jag Mfg Ltd | Detection Alarm Arrangement |
US4340884A (en) * | 1980-05-22 | 1982-07-20 | Maizland Ronald E | Intrusion alarm |
GB2221797A (en) * | 1988-07-19 | 1990-02-14 | Pivot Eng | "a retractable barrier device" |
-
1988
- 1988-09-24 GB GB8822501A patent/GB2225469B/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3887910A (en) * | 1972-11-15 | 1975-06-03 | Vernon H Jones | Burglar alarm |
GB2016777A (en) * | 1978-02-10 | 1979-09-26 | Jag Mfg Ltd | Detection Alarm Arrangement |
US4340884A (en) * | 1980-05-22 | 1982-07-20 | Maizland Ronald E | Intrusion alarm |
GB2221797A (en) * | 1988-07-19 | 1990-02-14 | Pivot Eng | "a retractable barrier device" |
Non-Patent Citations (1)
Title |
---|
The prior art admitted on page 1 of the description of the application * |
Also Published As
Publication number | Publication date |
---|---|
GB8822501D0 (en) | 1988-10-26 |
GB2225469A (en) | 1990-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940924 |