The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 24, 1981

Filed:

Jul. 10, 1978
Applicant:
Inventors:

Katsumi Watanabe, Kawasaki, JP;

Yutaka Shiseki, Kawasaki, JP;

Eishi Koike, Sagamihara, JP;

Assignee:

Ozen Co., Ltd., Machida, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 79 ;
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.


Find Patent Forward Citations

Watanabe, Katsumi. (1981). Sound reproducing device (U.S. Patent No. 4252326). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4252326

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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