Wide dispersion loudspeaker with flexing diaphragm

Details Wide dispersion loudspeaker with flexing diaphragm Wide dispersion loudspeaker with flexing diaphragm

1976-07-09

1977-06-14

Stellar, George G.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181171, 181173, H04R 712, H04R 718, H04R 906

Patent

active

040299104

ABSTRACT:
An audio loudspeaker comprising a diaphragm which is rotationally symmetrical about an axis, the diaphragm including a sound propagating surface extending between a larger circular edge and a smaller circular edge spaced apart therefrom along the axis in the direction of sound propagation. The voice coil former is secured to the diaphragm adjacent the smaller edge, the larger circular edge is fixed relative to the magnetic structure (e.g., to the mounting panel) and the included, initially acute, angle between a tangent to the sound propagating surface and the axis increases as the point of tangency moves from the smaller edge to the larger edge.

REFERENCES:
patent: 2423037 (1947-06-01), Marquis et al.
patent: 2512323 (1950-06-01), Gersch
patent: 2534040 (1950-12-01), Lindley
patent: 2566604 (1951-09-01), Eaves
patent: 2630189 (1953-03-01), Julie
patent: 3796839 (1974-03-01), Torn

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