DE3788005D1 - Pannensicheres Alarmsystem. - Google Patents
Pannensicheres Alarmsystem.Info
- Publication number
- DE3788005D1 DE3788005D1 DE87109179T DE3788005T DE3788005D1 DE 3788005 D1 DE3788005 D1 DE 3788005D1 DE 87109179 T DE87109179 T DE 87109179T DE 3788005 T DE3788005 T DE 3788005T DE 3788005 D1 DE3788005 D1 DE 3788005D1
- Authority
- DE
- Germany
- Prior art keywords
- puncture
- alarm system
- proof alarm
- proof
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/16—Security signalling or alarm systems, e.g. redundant 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
- G08B25/14—Central alarm receiver or annunciator arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/880,625 US4764754A (en) | 1986-07-01 | 1986-07-01 | Fail-safe alarm circuit |
Publications (3)
Publication Number | Publication Date |
---|---|
DE3788005D1 true DE3788005D1 (de) | 1993-12-09 |
DE3788005T2 DE3788005T2 (de) | 1994-03-31 |
DE3788005T3 DE3788005T3 (de) | 1999-05-20 |
Family
ID=25376703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3788005T Expired - Fee Related DE3788005T3 (de) | 1986-07-01 | 1987-06-26 | Pannensicheres Alarmsystem. |
Country Status (3)
Country | Link |
---|---|
US (1) | US4764754A (de) |
EP (1) | EP0251223B2 (de) |
DE (1) | DE3788005T3 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107271854B (zh) * | 2017-07-28 | 2023-08-29 | 北京航天光华电子技术有限公司 | 一种双冗余等电位电缆网混线测试装置及测试方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695994A (en) * | 1952-06-25 | 1954-11-30 | Gen Sonics Corp | Supervised signaling system |
US3212078A (en) * | 1962-10-12 | 1965-10-12 | Honeywell Inc | Annunciator apparatus |
US3448447A (en) * | 1965-06-28 | 1969-06-03 | Notifier Co | Polarized d.c. signaling system and means for supervising same |
US3569964A (en) * | 1968-05-16 | 1971-03-09 | Edwards Co | Supervisory alarm systems |
US3618081A (en) * | 1969-06-12 | 1971-11-02 | Edwards Co | Condition detection and alarm system |
US3711854A (en) * | 1971-10-19 | 1973-01-16 | Federal Sign And Signal Corp | Parallel alarm circuit having series supervision |
US3811126A (en) * | 1972-06-07 | 1974-05-14 | Smelting Refining And Mining C | Alarm system |
US4253091A (en) * | 1977-01-05 | 1981-02-24 | Mobil Oil Corporation | Method and apparatus for detection of alarm conditions |
US4118694A (en) * | 1977-04-29 | 1978-10-03 | General Signal Corporation | Base loop code transmitter |
US4224538A (en) * | 1978-09-15 | 1980-09-23 | Firetek Corporation | Series supervision/parallel actuation device |
US4249166A (en) * | 1978-10-25 | 1981-02-03 | Honeywell Inc. | Line supervision |
US4529971A (en) * | 1983-03-14 | 1985-07-16 | Base Ten Systems, Inc. | Alarm loop supervision |
-
1986
- 1986-07-01 US US06/880,625 patent/US4764754A/en not_active Expired - Lifetime
-
1987
- 1987-06-26 EP EP87109179A patent/EP0251223B2/de not_active Expired - Lifetime
- 1987-06-26 DE DE3788005T patent/DE3788005T3/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4764754A (en) | 1988-08-16 |
EP0251223B1 (de) | 1993-11-03 |
EP0251223B2 (de) | 1999-01-20 |
DE3788005T2 (de) | 1994-03-31 |
EP0251223A2 (de) | 1988-01-07 |
DE3788005T3 (de) | 1999-05-20 |
EP0251223A3 (en) | 1990-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |