One-piece telephone hook switch operating mechanism
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United States of America Patent
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Sep 22, 1987
Grant Date -
N/A
app pub date -
Jan 23, 1985
filing date -
Jan 23, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A switch operating mechanism for use in a telephone instrument (for example, for operating a hook switch) has two arms (4 and 5) for projection from--and independent displacement with respect to--an outer surface of the instrument body (1). The arms (4 and 5) are arranged to co-operate with a switch actuating member (13) such that this member adopts a first position when both arms (4 and 5) are retracted with respect to the body (1), and a second position when one or both of the arms (4 and 5) is or are extended from the body (1). This mechanism is particularly advantageous for operating the hook switch in a one-piece telephone instrument because inadvertent depression of one of the arms (4 or 5) does not cause actuation of the hook switch.
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