Audible vibratory reed assembly

Details Audible vibratory reed assembly Audible vibratory reed assembly

1976-09-20

1978-05-30

Yasich, Daniel M.

Signals and indicators

Alarms

Fluid-pressure variation

34 89, 84363, 116112, 116DIG25, G01L 1912, G08B 300

Patent

active

040917622

ABSTRACT:
An audible vibratory biased reed assembly having the properties of being activated or commencing vibration upon being subjected to a predetermined energy level. This assembly utilizes a straight, flat, elongated, closed or clapping reed, to produce a clatter or buzzing sound, with the reed being biased through application of a bias force to one edge to distort its flatness adjacent its free extremity. The bias force is applied by an angular transverse bridge which substantially triples the frequency of the mechanical clatter.

REFERENCES:
patent: 404980 (1889-06-01), Pfannenstiel
patent: 825610 (1906-07-01), Olt
patent: 2519015 (1950-08-01), Bensen
patent: 2606400 (1952-08-01), Olt et al.
patent: 2753831 (1956-07-01), Davies
patent: 2779305 (1957-01-01), Dunkelman
patent: 3133523 (1964-05-01), Schleich
patent: 3587514 (1971-06-01), Autrand
patent: 3745965 (1973-07-01), Ljung et al.

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