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GB2138778B - Video cassette security device - Google Patents

Video cassette security device

Info

Publication number
GB2138778B
GB2138778B GB08409843A GB8409843A GB2138778B GB 2138778 B GB2138778 B GB 2138778B GB 08409843 A GB08409843 A GB 08409843A GB 8409843 A GB8409843 A GB 8409843A GB 2138778 B GB2138778 B GB 2138778B
Authority
GB
United Kingdom
Prior art keywords
security device
video cassette
cassette security
video
security
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
GB08409843A
Other versions
GB8409843D0 (en
GB2138778A (en
Inventor
Cecil Thomas Dunne
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GB838310151A external-priority patent/GB8310151D0/en
Application filed by Individual filed Critical Individual
Priority to GB08409843A priority Critical patent/GB2138778B/en
Publication of GB8409843D0 publication Critical patent/GB8409843D0/en
Publication of GB2138778A publication Critical patent/GB2138778A/en
Application granted granted Critical
Publication of GB2138778B publication Critical patent/GB2138778B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/287—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs by mechanical lock
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
GB08409843A 1983-04-14 1984-04-16 Video cassette security device Expired GB2138778B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08409843A GB2138778B (en) 1983-04-14 1984-04-16 Video cassette security device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838310151A GB8310151D0 (en) 1983-04-14 1983-04-14 Video cassette security device
GB08409843A GB2138778B (en) 1983-04-14 1984-04-16 Video cassette security device

Publications (3)

Publication Number Publication Date
GB8409843D0 GB8409843D0 (en) 1984-05-23
GB2138778A GB2138778A (en) 1984-10-31
GB2138778B true GB2138778B (en) 1986-08-28

Family

ID=26285827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08409843A Expired GB2138778B (en) 1983-04-14 1984-04-16 Video cassette security device

Country Status (1)

Country Link
GB (1) GB2138778B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE456956B (en) * 1984-05-16 1988-11-14 Lockia Ab SAFETY DEVICE FOR PLAYBACK DEVICES
GB8500337D0 (en) * 1985-01-07 1985-02-13 Newell T J Preventing unauthorised use of video-cassettes
DE8702398U1 (en) * 1987-02-17 1987-06-11 Bohnert, Reinhard, 76532 Baden-Baden Video cassette

Also Published As

Publication number Publication date
GB8409843D0 (en) 1984-05-23
GB2138778A (en) 1984-10-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee