Tone ringer for telephone sets and other telecommunications...

Details Tone ringer for telephone sets and other telecommunications... Tone ringer for telephone sets and other telecommunications...

H - Electricity

04

M

379/93

H04M 1/02 (2006.01) H04M 19/04 (2006.01)

Patent

CA 1179080

TONE RINGER FOR TELEPHONE SETS AND OTHER TELECOMMUNICATIONS APPARATUS Abstract of the Disclosure The vibratory element of a tone ringer, as used for a telephone set for example, is gripped at its periphery between a ledge on a base housing and a thin deformable extension on a top housing. Interengaging clamping members and wedging members force the top housing down on the base housing when the top housing is rotated relative to the bottom housing. This forces the thin deformable extension into a tight gripping contact with the vibratory element clamping it against the ledge while the thin portion deforms. A ratchet arrangement can be provided to rotationally lock the top housing relative to the base housing. A mounting position for a printed circuit board can be provided on the base housing.

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