Anti-unplugging unit and transmission cord

Details Anti-unplugging unit and transmission cord Anti-unplugging unit and transmission cord

2008-05-13

2008-05-13

Nguyen, Truc (Department: 2833)

Electrical connectors

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

C439S352000, C439S502000

Reexamination Certificate

active

07371086

ABSTRACT:
The invention provides an anti-unplugging unit attached to a plug of a transmission cord and to be put in a jack of electronic or communications equipment with the plug for preventing unauthorized removal of the plug from the jack. The anti-unplugging unit includes a latch member having an engaging portion for engaging a predetermined portion of a jack when the unit with the plug is inserted into the jack, lock means for selectively allowing or preventing release of engagement of the engaging portion with the predetermined portion of the jack, and a housing fixable to the plug and accommodating the latch member and the lock means. The invention also provides a transmission cord including a first cord having plugs at both ends, and the anti-unplugging unit fixed to at least one of the plugs.

REFERENCES:
patent: 4460234 (1984-07-01), Bogese
patent: 4946401 (1990-08-01), Hori et al.
patent: 5190465 (1993-03-01), Davidge et al.
patent: 7025636 (2006-04-01), Allen

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