Hand held communications microphone

Details Hand held communications microphone Hand held communications microphone

1975-11-20

1978-09-12

Brown, Thomas W.

179180, 179184, H04R 102

Patent

active

041139992

ABSTRACT:
A microphone of the hand held type used in portable or remote radio communications systems in which improved resistance to shock, wet environmental conditions is achieved by using a resilient mounting means for a receiver disposed inside a hollow housing which includes a stop for limiting motion of the receiver in the resilient mounting means and through the use of a loosely mounted water impervious membrane over the active side of the receiver and further disposing an open cell, foamed plastic element over the outside of the plastic membrane.

REFERENCES:
patent: 2556168 (1951-06-01), Cragg et al.
patent: 2709723 (1955-05-01), Breisch et al.
patent: 2718563 (1955-09-01), Nicholides
patent: 2891131 (1959-06-01), Runge et al.
patent: 3548121 (1970-12-01), Gorike et al.
patent: 3651286 (1972-03-01), Gorike et al.
patent: 3660602 (1972-05-01), Thompson
patent: 3751600 (1973-08-01), Reichard, Jr.

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