ZA711381B - Proximity detector - Google Patents

Proximity detector

Info

Publication number
ZA711381B
ZA711381B ZA711381A ZA711381A ZA711381B ZA 711381 B ZA711381 B ZA 711381B ZA 711381 A ZA711381 A ZA 711381A ZA 711381 A ZA711381 A ZA 711381A ZA 711381 B ZA711381 B ZA 711381B
Authority
ZA
South Africa
Prior art keywords
proximity detector
proximity
detector
Prior art date
Application number
ZA711381A
Other languages
English (en)
Inventor
E Solomon
Original Assignee
Pyrotector 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 Pyrotector Inc filed Critical Pyrotector Inc
Publication of ZA711381B publication Critical patent/ZA711381B/xx

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
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
  • Traffic Control Systems (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
ZA711381A 1970-03-11 1971-03-03 Proximity detector ZA711381B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1865470A 1970-03-11 1970-03-11

Publications (1)

Publication Number Publication Date
ZA711381B true ZA711381B (en) 1971-12-29

Family

ID=21789075

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA711381A ZA711381B (en) 1970-03-11 1971-03-03 Proximity detector

Country Status (6)

Country Link
JP (1) JPS5132360B1 (en, 2012)
DE (1) DE2111774B2 (en, 2012)
ES (1) ES389444A1 (en, 2012)
FR (1) FR2084457A5 (en, 2012)
GB (1) GB1322279A (en, 2012)
ZA (1) ZA711381B (en, 2012)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48110734U (en, 2012) * 1972-03-24 1973-12-19
DE3315831A1 (de) * 1983-04-30 1984-10-31 Karl Jürgen 7505 Ettlingen Schwarz Verfahren zur ueberwachung eines abgestellten objektes und schaltungsanordnung hierzu

Also Published As

Publication number Publication date
GB1322279A (en) 1973-07-04
ES389444A1 (es) 1974-12-16
DE2111774A1 (de) 1971-09-30
JPS5132360B1 (en, 2012) 1976-09-11
DE2111774B2 (de) 1976-12-23
FR2084457A5 (en, 2012) 1971-12-17
JPS462629A (en, 2012) 1971-10-20

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