Sound reproducing device

Details Sound reproducing device Sound reproducing device

1978-07-10

1981-02-24

Stephan, Steven L.

Dynamic information storage or retrieval

With particular cabinet structure

With closure-operated interlock or braking actuator

G11B 2504

Patent

active

042523265

ABSTRACT:
A sound reproducing device is driven by an electric motor powered by a cell or battery. The lead wires extending between the battery and the electric motor are securedly connected at their points of junction by either the resilient forces exerted by the lead wires themselves which exhibit spring properties and/or by a biasing force applied by the casing assembly of the reproducing device, itself. Furthermore, the spring-like lead wires are, also, utilized to define a spring acting stop switch operable for both starting and stopping of the sound reproduction, and particularly, to form an electrical switch(es) interconnected with a cover lid. Owing to the simplified construction as mentioned above, the electrical circuit of the device of this kind can be readily arranged in the device accompanied by superior electrical characteristics.

REFERENCES:
patent: 3104926 (1963-09-01), Scoville
patent: 3633923 (1972-01-01), Watanabe
patent: 3740056 (1973-06-01), Nuttall et al.
patent: 3773331 (1973-11-01), Watanabe
patent: 3823946 (1974-07-01), Nakajima
patent: 4004815 (1977-01-01), Watanabe
patent: 4078808 (1978-03-01), Hughes

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