Fluid sprinkling – spraying – and diffusing – With means to vibrate or jiggle discharge
Patent
1980-02-08
1982-03-16
Cherry, Johnny D.
Fluid sprinkling, spraying, and diffusing
With means to vibrate or jiggle discharge
310323, 310325, B05B 1706
Patent
active
043197167
ABSTRACT:
A piezoelectric fluid atomizer comprises an oscillating plate which is made to resonate by means of an electric alternating voltage. The element causing the oscillations is a piezoceramic converter which is connected to the oscillating plate via a cylindrical extension part. The cylindrical extension with the oscillating plate is constructed as an axial extension of the front side of a bolt which comprises a widened portion in the form of an abutment plate adjacent the cylindrical extension. The bolt supports converter elements which are shaped as rings and which are pressed across the bolt against the abutment plate by means of a pressure plate. A shield which extends across the converter elements is secured on the bolt at some distance behind the pressure plate. In operation an oscillation node is present for the freely suspended part supporting the piezoelectric converter elements, at the area of the abutment plate. A further oscillation node is present for the freely supported part and the shield, at the area where the shield is secured to the bolt.
REFERENCES:
patent: 3400892 (1968-09-01), Ensminger
patent: 3681627 (1972-08-01), Murry et al.
patent: 3861852 (1975-01-01), Berger
patent: 4153201 (1979-05-01), Berger et al.
patent: 4169984 (1979-10-01), Parisi
Cherry Johnny D.
Schechter Marc D.
U.S. Philips Corporation
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