FR2598005B1 - MAGNETIC DETECTION DEVICE, PARTICULARLY FOR PROTECTION AGAINST FRAUD - Google Patents

MAGNETIC DETECTION DEVICE, PARTICULARLY FOR PROTECTION AGAINST FRAUD

Info

Publication number
FR2598005B1
FR2598005B1 FR8606039A FR8606039A FR2598005B1 FR 2598005 B1 FR2598005 B1 FR 2598005B1 FR 8606039 A FR8606039 A FR 8606039A FR 8606039 A FR8606039 A FR 8606039A FR 2598005 B1 FR2598005 B1 FR 2598005B1
Authority
FR
France
Prior art keywords
detection device
protection against
magnetic detection
against fraud
fraud
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
FR8606039A
Other languages
French (fr)
Other versions
FR2598005A1 (en
Inventor
M D Nicolas
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.)
CONST ELECT ELECTRO CIE
Original Assignee
CONST ELECT ELECTRO CIE
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
Application filed by CONST ELECT ELECTRO CIE filed Critical CONST ELECT ELECTRO CIE
Priority to FR8606039A priority Critical patent/FR2598005B1/en
Publication of FR2598005A1 publication Critical patent/FR2598005A1/en
Application granted granted Critical
Publication of FR2598005B1 publication Critical patent/FR2598005B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0046—Limit switches, also fail-safe operation or anti-tamper considerations
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
    • 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)
  • Pinball Game Machines (AREA)
FR8606039A 1986-04-25 1986-04-25 MAGNETIC DETECTION DEVICE, PARTICULARLY FOR PROTECTION AGAINST FRAUD Expired FR2598005B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8606039A FR2598005B1 (en) 1986-04-25 1986-04-25 MAGNETIC DETECTION DEVICE, PARTICULARLY FOR PROTECTION AGAINST FRAUD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8606039A FR2598005B1 (en) 1986-04-25 1986-04-25 MAGNETIC DETECTION DEVICE, PARTICULARLY FOR PROTECTION AGAINST FRAUD

Publications (2)

Publication Number Publication Date
FR2598005A1 FR2598005A1 (en) 1987-10-30
FR2598005B1 true FR2598005B1 (en) 1988-10-28

Family

ID=9334641

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8606039A Expired FR2598005B1 (en) 1986-04-25 1986-04-25 MAGNETIC DETECTION DEVICE, PARTICULARLY FOR PROTECTION AGAINST FRAUD

Country Status (1)

Country Link
FR (1) FR2598005B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2844391B1 (en) * 2002-09-11 2006-04-28 Bosch Gmbh Robert IMPROVED ELECTRIC SWITCH AND BRAKE FLUID RESERVOIR ASSEMBLY COMPRISING THE SWITCH
CN101383083B (en) * 2008-07-11 2013-06-19 冯林 Alarming method and alarm thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3161742A (en) * 1961-08-24 1964-12-15 Specialties Dev Corp Magnetic intruder and fire deterctor
GB1250803A (en) * 1968-11-08 1971-10-20
DE2031015A1 (en) * 1970-06-23 1971-12-30 Bunker Ramo Control, in particular alarm system
US3668579A (en) * 1970-11-09 1972-06-06 Door Alarm Device Corp Magnetic door alarm
FR2130951A5 (en) * 1971-03-26 1972-11-10 Dentzer Noxa Groupe
FR2336659A1 (en) * 1975-12-24 1977-07-22 Lynx Alarm Magnetic displacement detector for burglar alarm systems - comprises three switches, with principal magnet and keeping magnet
FR2358002A1 (en) * 1976-07-09 1978-02-03 Lynx Alarm Security lock magnetic detector - has one set of magnetic reed switch and magnet to detect door closure and second set of magnet and switch for interference prevention
FR2438253B2 (en) * 1978-10-06 1986-11-28 Lynx Alarm MAGNETIC DETECTOR FOR THE RELATIVE MOVEMENT OF TWO OBJECTS, IN PARTICULAR AN OPENING DETECTOR FOR PROTECTION SYSTEMS

Also Published As

Publication number Publication date
FR2598005A1 (en) 1987-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse