Mechanical improvement on an electric alarm clock

Details Mechanical improvement on an electric alarm clock Mechanical improvement on an electric alarm clock

1974-03-29

1977-01-25

Jackmon, E. S.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

58 33, 58152B, 200 37R, G04C 1306, G04C 2100, G04B 3712, H01H 708

Patent

active

040044084

ABSTRACT:
There is provided an alarm clock of the type which produces an electric signal and which operates in conjunction with an auxiliary device. The clock comprises first circuit means having first switch means for producing and cancelling the signal, and second circuit means having second switch means for switching the auxiliary device on and off. A single spring contact forms a common switch member of said first and second switch means. The advantage gained hereby is that the number of switches normally required to produce and cancel said signal and to energize and de-energize said auxiliary device is reduced.

REFERENCES:
patent: 3018340 (1962-01-01), Eggert et al.
patent: 3081594 (1963-03-01), Atkins et al.
patent: 3361973 (1968-01-01), Wyseng
patent: 3386238 (1968-06-01), Voit
patent: 3577725 (1971-05-01), Ganter
patent: 3643418 (1972-02-01), Palin et al.
patent: 3643421 (1972-02-01), Herr et al.
patent: 3689919 (1972-09-01), Ganter et al.
patent: 3824782 (1974-07-01), Iinuma

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