1980-09-04
1983-01-18
Popek, Joseph A.
H04M 111
Patent
active
043693407
ABSTRACT:
A customer installable adapter assembly (10) which mounts between a wall jack outlet (14) and a wall mounted telephone set (12) to provide a jack (27) terminated extension cord (26) access to the wall jack outlet (14). The adapter assembly (10), which is provided with its own mounting studs (23, 24) for retaining the telephone set (12), is itself retained by the mounting studs (15, 16) of the wall jack (14). The adapter assembly (10) features a locking mechanism to prevent its inadvertent removal when the telephone set is removed, comprising a hinged lid (34) covering one of the wall jack studs (16) and the keyhole aperture (31) of the adapter assembly through which the latter is maintained on the stud (16). The lid (34) has extending from its inner face a lug (59) which, when the lid (34) is closed, fits into the open area of the keyhole aperture (31) to abut against the flanged head of the mounting stud (16). The latter is thus prevented from being moved back into the keyhole aperture (31) open area thereby preventing inadvertent removal of the adapter assembly (10) when the telephone set (12) is removed.
REFERENCES:
patent: 3840711 (1974-10-01), Tucker
patent: 3845252 (1974-10-01), Wooters
patent: 3848097 (1974-11-01), Tucker
patent: 3851119 (1974-11-01), Tucker
patent: 3898394 (1975-08-01), Ward et al.
patent: 4047787 (1977-09-01), Gumb et al.
Bell Telephone Laboratories Incorporated
Kamstra W. H.
Popek Joseph A.
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