Acoustic diaphragm

Details Acoustic diaphragm Acoustic diaphragm

1992-05-22

1994-07-12

Gellner, Michael L.

Acoustics

Diaphragm

Critically defined material or coating

181169, G10K 1300

Patent

active

053290720

ABSTRACT:
An acoustic diaphragm comprising two or more laminated composite sheets, being formed into a shape with a curved surface. The composite sheet is made up of sliced wood and nonwoven fabric cloth consisting of adhesive resin, being stuck on backside of the sliced wood. Thus, it is capable of forming a three-dimensional shape, making use of natural wood characteristics, and improving unevenness of natural material properties. In one preferred embodiment, the diaphragm is woven of slit wood or other article forming the weft and synthetic or inorganic fibers forming the warp.

REFERENCES:
patent: 1790679 (1931-02-01), Seely
patent: 4699242 (1987-10-01), Ono
patent: 5031720 (1991-07-01), Ohta et al.

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