FR2377068A1 - Dispositif antivol protege contre l'application de surtensions - Google Patents
Dispositif antivol protege contre l'application de surtensionsInfo
- Publication number
- FR2377068A1 FR2377068A1 FR7700578A FR7700578A FR2377068A1 FR 2377068 A1 FR2377068 A1 FR 2377068A1 FR 7700578 A FR7700578 A FR 7700578A FR 7700578 A FR7700578 A FR 7700578A FR 2377068 A1 FR2377068 A1 FR 2377068A1
- Authority
- FR
- France
- Prior art keywords
- alarm
- circuit
- burglar alarm
- protection system
- overvoltage protection
- 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.)
- Granted
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
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
- G08B29/08—Signalling of tampering with the line circuit
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
-
- 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
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
- G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Burglar Alarm Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7700578A FR2377068A1 (fr) | 1977-01-11 | 1977-01-11 | Dispositif antivol protege contre l'application de surtensions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7700578A FR2377068A1 (fr) | 1977-01-11 | 1977-01-11 | Dispositif antivol protege contre l'application de surtensions |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2377068A1 true FR2377068A1 (fr) | 1978-08-04 |
FR2377068B3 FR2377068B3 (US08066781-20111129-C00013.png) | 1979-09-07 |
Family
ID=9185326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7700578A Granted FR2377068A1 (fr) | 1977-01-11 | 1977-01-11 | Dispositif antivol protege contre l'application de surtensions |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2377068A1 (US08066781-20111129-C00013.png) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2580712A1 (fr) * | 1985-04-23 | 1986-10-24 | Ferco Int Usine Ferrures | Dispositif d'alarme pour dispositif electromecanique de manoeuvre commande par un code |
EP0328438A2 (en) * | 1988-02-09 | 1989-08-16 | Max Walton Cook | Apparatus and method for protecting the contacts of an electrical switch from current surges |
-
1977
- 1977-01-11 FR FR7700578A patent/FR2377068A1/fr active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2580712A1 (fr) * | 1985-04-23 | 1986-10-24 | Ferco Int Usine Ferrures | Dispositif d'alarme pour dispositif electromecanique de manoeuvre commande par un code |
EP0199651A1 (fr) * | 1985-04-23 | 1986-10-29 | FERCO INTERNATIONAL Usine de Ferrures de BÀ¢timent Société à responsabilité limitée | Dispositif d'alarme pour dispositif électromécanique de manoeuvre commandé par un code |
EP0328438A2 (en) * | 1988-02-09 | 1989-08-16 | Max Walton Cook | Apparatus and method for protecting the contacts of an electrical switch from current surges |
EP0328438A3 (en) * | 1988-02-09 | 1991-04-17 | Max Walton Cook | Apparatus and method for protecting the contacts of an electrical switch from current surges |
Also Published As
Publication number | Publication date |
---|---|
FR2377068B3 (US08066781-20111129-C00013.png) | 1979-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |