Diaphragm for a loudspeaker

Details Diaphragm for a loudspeaker Diaphragm for a loudspeaker

1979-08-17

1981-06-23

Robinson, Thomas A.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

1791155R, 181166, 181170, H04R 702, H04R 902

Patent

active

042752787

ABSTRACT:
A diaphragm for a loudspeaker includes a core member having a flat front surface from which a frustum-shaped side surface extends to a back portion, a cover member secured to the back portion and adapted to be connected to a voice coil bobbin of the loudspeaker, an outer radiation layer mounted on the front surface and having a relatively high resonance sharpness, and an intermediate layer laminated between the front surface and the outer radiation layer and having a resonance sharpness lower than that of the outer radiation layer.

REFERENCES:
patent: Re17086 (1928-09-01), Kolster et al.
patent: 3153463 (1964-10-01), Novak
patent: 4163876 (1979-08-01), Ohnuki

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