Video cassette security apparatus

Details Video cassette security apparatus Video cassette security apparatus

1992-08-26

1993-11-16

Gall, Lloyd A.

Locks

Special application

For portable articles

70167, 292DIG38, 360132, 360137, 411 50, E05B 7300

Patent

active

052612597

ABSTRACT:
A locking device for use with a video cassette tape to prevent unauthorized usage in view of its content. The device incorporates a member that is expandable into certain recesses of the cassette when placed into a locking mode and, is not expanded when the cassette is in a non-locking mode. A specialized key is utilized with the device to prevent its duplication.

REFERENCES:
patent: 2810401 (1957-10-01), Stansbury
patent: 3130571 (1964-04-01), Neumann
patent: 3747541 (1973-07-01), Reese
patent: 3785670 (1974-01-01), Smith
patent: 4035921 (1977-07-01), Williams
patent: 4100777 (1978-07-01), Fredon
patent: 4628713 (1986-12-01), Cecchi et al.
patent: 4693389 (1987-09-01), Kalen
patent: 4716745 (1988-01-01), Hehn
patent: 4763784 (1988-08-01), Newell

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