Patent
1973-11-27
1976-03-16
Claffy, Kathleen H.
179179, 179111E, H04R 102
Patent
active
039447596
ABSTRACT:
A microphone provided with a suspension diaphragm which serves to support a freely suspended microphone cartridge, preferably of the electret type, the suspension diaphragm being substantially coplanar with the acoustic diaphragm of the microphone cartridge. At least one groove entirely closes acoustically the air-gap surrounding the freely suspended microphone cartridge. The groove is further provided with lug-shaped flanges, one for clamping the microphone cartridge and the other for suspension from a frame, mount or microphone case. The suspension diaphragm is particularly suitable for light-weight microphone cartridges.
REFERENCES:
patent: 2567889 (1951-09-01), Moreland, Jr.
patent: 3108162 (1963-10-01), Schindler
patent: 3174129 (1965-03-01), Laughlin
patent: 3436495 (1969-04-01), Gorike
patent: 3624312 (1971-11-01), Koukal et al.
patent: 3651286 (1972-03-01), Gorike et al.
patent: 3816671 (1974-06-01), Fraim et al.
Claffy Kathleen H.
Franzblau Bernard
Popek Joseph
Trifari Frank R.
U.S. Philips Corporation
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