Vehicular sound generator

Details Vehicular sound generator Vehicular sound generator

1977-06-16

1979-01-23

Yasich, Daniel M.

Signals and indicators

Horns, whistles and compressional wave generators

Diaphragm horns

29445, 29594, 340388, 340404, G10K 904, G10K 912, H04R 3100

Patent

active

041354737

ABSTRACT:
A vehicular warning device comprises a sound generator of electromagnetic electropneumatic type with two components, one of them including a diaphragm, that are relatively axially movable in a generally cylindrical housing supporting both components. The peripheral housing wall has a corrugated zone forming at least one annular bulge which can be compressed between a pair of clamping jaws during tests following assembly. Such compression, with permanent deformation of the housing wall, reduces the axial height of the housing so as to narrow the air gap between a membrane-supported electromagnetic armature and a confronting core member or to intensify the pressure exerted by the diaphragm upon an entrance end of an air channel normally blocked by that membrane.

REFERENCES:
patent: 1351729 (1920-09-01), Ames
patent: 1789947 (1931-01-01), Scofield et al.
patent: 1797120 (1931-03-01), Bennett
patent: 1841535 (1932-01-01), Hueber et al.
patent: 1898394 (1933-02-01), Riedel
patent: 2694806 (1954-11-01), Johnson
patent: 2811129 (1957-10-01), Buell
patent: 3412219 (1968-11-01), Karay
patent: 3477405 (1969-11-01), Jensen
patent: 3967367 (1976-07-01), Hayes et al.

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