Acoustics – Diaphragm – Microphone type
Patent
1989-08-28
1990-10-30
Fuller, Benjamin R.
Acoustics
Diaphragm
Microphone type
181242, 381158, 381169, 381189, 381205, G10K 1100, H04R 700
Patent
active
049662520
ABSTRACT:
The microphone windscreen has a smooth level outer surface with decreased wind resistance and enhanced acoustic properties. The screen includes a resilient, hollow tubular body member of metal or plastic or the like, preferably polyethylene plastic, having a central space to hold a microphone and open front and rear ends. The sidewall of the member has a plurality of spaced openings to form a mesh configuration. A similarly constructed pair of hemispherical hollow end caps are welded or molded directly to the body by a weld or mold line to form the windscreen into a strong unitary porous cage structure, having decreased weight in comparison to conventional windscreens, and with reduced sound obstruction. The weld line is part of the smooth level outer surface of the windscreen. The inner surface of the windscreen is preferably covered by a wind noise attenuation medium such as a fabric formed of an outer layer of napped nylon, an intermediate layer of polymeric plastic foam and an inner layer of woven nylon. The windscreen is inexpensive, durable and not subject to breakage in constrast to conventional multi-component windscreens.
REFERENCES:
patent: 1901065 (1933-03-01), Spotts
patent: 2536261 (1951-01-01), Caldwell, Jr.
patent: 2857013 (1958-10-01), Orso
patent: 3154171 (1964-10-01), Knutson et al.
patent: 3862377 (1975-01-01), Burroughs
Fuller Benjamin R.
Posta Jr. John J.
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