Jack for telephone set

Details Jack for telephone set Jack for telephone set

1987-01-09

1987-12-15

Weidenfeld, Gil

Electrical connectors

With contact preventer or retractable cover part

Movably mounted

439140, H01R 1344

Patent

active

047130164

ABSTRACT:
A jack for a telephone set comprises a dust-proof closure unit having a first cover plate provided with a guide groove extended in a sliding direction and a second cover plate provided with a guiding projection engageable in the guide groove of the first plate, the first and second cover plates being arranged slidable relative to each other along a plug receiving aperture in a casing of the jack to close or open the aperture, whereby the first and second cover plates of the closure unit can be retracted as overlapped with each other to their aperture opening position so as to reduce their retractive dimension substantially to be half in the sliding direction, and the dust-proof closure unit can be provided for the plug receiving aperture without any increase in size of the casing.

REFERENCES:
patent: 3865456 (1975-02-01), Dola
patent: 4188082 (1980-02-01), Dickey
patent: 4549778 (1985-10-01), Price et al.
patent: 4600258 (1986-07-01), Hu
patent: 4624516 (1986-11-01), White
patent: 4640564 (1987-02-01), Hill

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