FR1514061A - Intrusion warning device - Google Patents

Intrusion warning device

Info

Publication number
FR1514061A
FR1514061A FR906743A FR906743A FR1514061A FR 1514061 A FR1514061 A FR 1514061A FR 906743 A FR906743 A FR 906743A FR 906743 A FR906743 A FR 906743A FR 1514061 A FR1514061 A FR 1514061A
Authority
FR
France
Prior art keywords
warning device
intrusion warning
intrusion
warning
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
FR906743A
Other languages
French (fr)
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Application granted granted Critical
Publication of FR1514061A publication Critical patent/FR1514061A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR906743A 1961-08-05 1962-08-10 Intrusion warning device Expired FR1514061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13155061A 1961-08-05 1961-08-05

Publications (1)

Publication Number Publication Date
FR1514061A true FR1514061A (en) 1968-02-23

Family

ID=22449935

Family Applications (1)

Application Number Title Priority Date Filing Date
FR906743A Expired FR1514061A (en) 1961-08-05 1962-08-10 Intrusion warning device

Country Status (2)

Country Link
FR (1) FR1514061A (en)
GB (1) GB954536A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096792A1 (en) * 1970-06-26 1972-02-25 Systron Donner Corp

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3300768A (en) * 1963-08-20 1967-01-24 Boeing Co Radiant energy type intrusion alarm system
US3367450A (en) * 1967-03-03 1968-02-06 Westinghouse Electric Corp Traffic supervisory apparatus
US3541551A (en) * 1967-10-02 1970-11-17 Boeing Co Intrusion detector radar with space link control of surveillance area limits
US3704461A (en) * 1970-03-25 1972-11-28 Optronix Inc Intrusion detection system responsive to interruption of a transmitted beam
US3691558A (en) * 1970-06-25 1972-09-12 Entron Inc Moving object microwave detection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096792A1 (en) * 1970-06-26 1972-02-25 Systron Donner Corp

Also Published As

Publication number Publication date
GB954536A (en) 1964-04-08

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