Geometrical instruments
Patent
1981-06-15
1983-05-24
Goldberg, Howard N.
Geometrical instruments
H01R 1300
Patent
active
043847560
ABSTRACT:
An electrical plug-in option switch in which the orientation of the female plug while withdrawn from the associated male jack may be altered to select different circuit options. The plug is constrained by a supporting flange so that its orientation can be altered only when it is fully withdrawn from the jack. In addition contact between the plug and jack is possible only when the pins and sockets are aligned thereby preventing inadvertent damage to the pins during selection of the electrical option.
REFERENCES:
patent: 2256181 (1941-09-01), Tyrner
patent: 3231767 (1966-01-01), Powell
patent: 3629789 (1971-12-01), Szeremy
patent: 3980368 (1976-09-01), Fremont
Beun Roger A.
Simonovich Lambert
Goldberg Howard N.
Mowle John E.
Northern Telecom Limited
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