FR1400737A - Room protection system - Google Patents

Room protection system

Info

Publication number
FR1400737A
FR1400737A FR977170A FR977170A FR1400737A FR 1400737 A FR1400737 A FR 1400737A FR 977170 A FR977170 A FR 977170A FR 977170 A FR977170 A FR 977170A FR 1400737 A FR1400737 A FR 1400737A
Authority
FR
France
Prior art keywords
protection system
room protection
room
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.)
Expired
Application number
FR977170A
Other languages
French (fr)
Inventor
Richard C Cowen
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.)
US Atomic Energy Commission (AEC)
Original Assignee
US Atomic Energy Commission (AEC)
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 US Atomic Energy Commission (AEC) filed Critical US Atomic Energy Commission (AEC)
Priority to FR977170A priority Critical patent/FR1400737A/en
Application granted granted Critical
Publication of FR1400737A publication Critical patent/FR1400737A/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
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR977170A 1964-06-05 1964-06-05 Room protection system Expired FR1400737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR977170A FR1400737A (en) 1964-06-05 1964-06-05 Room protection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR977170A FR1400737A (en) 1964-06-05 1964-06-05 Room protection system

Publications (1)

Publication Number Publication Date
FR1400737A true FR1400737A (en) 1965-05-28

Family

ID=8831693

Family Applications (1)

Application Number Title Priority Date Filing Date
FR977170A Expired FR1400737A (en) 1964-06-05 1964-06-05 Room protection system

Country Status (1)

Country Link
FR (1) FR1400737A (en)

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