DE3275035D1 - Ultrasonic identity seal - Google Patents

Ultrasonic identity seal

Info

Publication number
DE3275035D1
DE3275035D1 DE8282108127T DE3275035T DE3275035D1 DE 3275035 D1 DE3275035 D1 DE 3275035D1 DE 8282108127 T DE8282108127 T DE 8282108127T DE 3275035 T DE3275035 T DE 3275035T DE 3275035 D1 DE3275035 D1 DE 3275035D1
Authority
DE
Germany
Prior art keywords
ultrasonic identity
identity seal
seal
ultrasonic
identity
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
DE8282108127T
Other languages
German (de)
Inventor
Rene Denis
Giulio Ghiringhelli
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.)
European Atomic Energy Community Euratom
Original Assignee
European Atomic Energy Community Euratom
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 European Atomic Energy Community Euratom filed Critical European Atomic Energy Community Euratom
Application granted granted Critical
Publication of DE3275035D1 publication Critical patent/DE3275035D1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0376—Forms or constructions of security seals using a special technique to detect tampering, e.g. by ultrasonic or optical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Burglar Alarm Systems (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
DE8282108127T 1982-09-03 1982-09-03 Ultrasonic identity seal Expired DE3275035D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19820108127 EP0102405B1 (en) 1982-09-03 1982-09-03 Ultrasonic identity seal

Publications (1)

Publication Number Publication Date
DE3275035D1 true DE3275035D1 (en) 1987-02-12

Family

ID=8189207

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282108127T Expired DE3275035D1 (en) 1982-09-03 1982-09-03 Ultrasonic identity seal

Country Status (2)

Country Link
EP (1) EP0102405B1 (en)
DE (1) DE3275035D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570533B1 (en) * 1984-09-18 1987-05-22 Commissariat Energie Atomique ULTRASONIC CABLE SEAL

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972068A (en) * 1956-07-06 1961-02-14 Automation Instr Inc Uni-directional ultrasonic transducer
US4359903A (en) * 1979-04-24 1982-11-23 European Atomic Energy Community (Euratom) System for the identification of objects, for example nuclear fuel elements
US4295377A (en) * 1979-07-12 1981-10-20 General Dynamics Corporation Fastener incorporating removable ultrasonic transducer

Also Published As

Publication number Publication date
EP0102405B1 (en) 1987-01-07
EP0102405A1 (en) 1984-03-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee