Acoustic diaphragm

Details Acoustic diaphragm Acoustic diaphragm

1985-03-13

1987-04-07

Fuller, Benjamin R.

Acoustics

Diaphragm

Sectional diaphragm

181168, 181173, G01K 1300

Patent

active

046553169

ABSTRACT:
An acoustic diaphragm is made of metallic sheet material forming a raised pattern of the material and unraised sectors of the material. The diaphragm is of the dome-shaped variety. The raised pattern incorporates sets of raised strip elements. There is a set of such elements extending radially from the vicinity of the apex. There is a set extending along areas of the sheet material between the radially extending elements, this second set including pairs of strip elements which intersect one another along such areas. There is also a set of circumferentially extending raised strip elements. The form of the radially extending elements changes along their lengths; for example, they rise to levels which vary along their lengths.

REFERENCES:
patent: 1056475 (1913-03-01), Welser
patent: 1699786 (1929-01-01), Goldsborough
patent: 1829355 (1931-10-01), Houghton
patent: 1918422 (1933-07-01), Nystrom

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