Conveyors: fluid current – With signal – indicator – or inspection means – Audible
Patent
1978-09-05
1979-11-27
Nase, Jeffrey V.
Conveyors: fluid current
With signal, indicator, or inspection means
Audible
15339, B65G 5366
Patent
active
041758927
ABSTRACT:
A particle monitoring device located in a line carrying a moving fluid, as air, containing particles. The device has a particle sensing member providing audio signals that are in proportion to the amount of particles moving with the fluid. The sensing member is a flexible sheet member closing an open end of a connector housing having a chamber. Particles that hit the active section of the sheet member produce an audio signal providing information feedback of the amount of particles moving with the fluid.
REFERENCES:
patent: 964800 (1910-07-01), Luden
patent: 1565382 (1925-12-01), McClatchie
patent: 1633598 (1927-06-01), McClatchie
patent: 3286393 (1966-11-01), Ryan
patent: 3674316 (1972-07-01), De brey
"The Physics of Music", by Alexander Wood, Second Edition, 1944, pp. 149-150.
"Acoustics of Music", by Wilmer T. Bartholomew, 1942, pp. 129-131.
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