Coaxial cable output terminal safety plug device

Details Coaxial cable output terminal safety plug device Coaxial cable output terminal safety plug device

1991-06-27

1992-04-21

Abrams, Neil

Electrical connectors

With unauthorized connection preventer, e.g., key or...

439307, 439620, H01R 1344

Patent

active

051063123

ABSTRACT:
A coaxial cable output terminal safety plug device which is screwed with a conventional coaxial cable output terminal to prevent unauthorized use, wherein the safety plug device includes a hollow plug receiving a plug seat therein, and if the plug is rotated alone, then the plug seat can not be driven and screwed and therefore a special tool is used to drive the plug and screw or unscrew the same from the output terminal, the plug seat being formed with an output hole for insertion of a resistor for matching impedance.

REFERENCES:
patent: 3845454 (1974-10-01), Hayward et al.
patent: 3890028 (1975-06-01), Blanchenot
patent: 4469386 (1984-09-01), Ackerman
patent: 5011422 (1991-04-01), Yeh

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