Diaphragm horn

Details Diaphragm horn Diaphragm horn

1982-09-07

1984-04-03

Swann, III, Glen R.

Communications: electrical

Audible indication

Diaphragm

116142R, 181152, 181159, G08B 310

Patent

active

044410999

ABSTRACT:
An electric diaphragm horn includes a housing having a diaphragm mounted thereon defining a chamber, the chamber being vented to the atmosphere through the diaphragm.

REFERENCES:
patent: 3516088 (1970-06-01), Allport
patent: 4116158 (1978-09-01), Warnod
patent: 4135473 (1979-01-01), Frigo
patent: 4267552 (1981-05-01), Frigo

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