Electroacoustic transducer frame and method of making the same

Details Electroacoustic transducer frame and method of making the same Electroacoustic transducer frame and method of making the same

2005-03-29

2005-03-29

Lockett, Kimberly (Department: 2837)

Acoustics

Diaphragm

Critically defined material or coating

Reexamination Certificate

active

06871724

ABSTRACT:
A frame of an electroacoustic transducer is made from a mixture of a thermoplastic resin and long fibers dispersed in the resin. The long fibers serve as reinforcing fibers. The long fibers have an average length sufficient to achieve a spring back effect. The spring back effect creases a foam structure. The electroacoustic transducer frame includes single-layer portions and three-layer portions. The single-layer portion is made of a non-foam layer. The three-layer portion is made of a pair of non-foam layers and a foam layer sandwiched by the non-foam layers. The electroacoustic transducer frame is lightweight, and has high internal loss, high rigidity and improved environmental resistance.

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