Gas flow generator

Details Gas flow generator Gas flow generator

2004-04-07

2009-06-23

Greene, Jason M (Department: 1797)

Gas separation: apparatus

Apparatus for selective diffusion of gases

C096S011000, C055S400000, C055S401000, C055S467000, C417S413200, C417S413300, C417S322000

Reexamination Certificate

active

07550034

ABSTRACT:
A gas flow generator comprising: an ultrasonic driver comprising a piezoelectric or electrostrictive transducer mounted on a substrate, operation of the transducer being arranged to cause the driver to bend; a first membrane disposed on or formed integrally with the transducer or the substrate; and a second membrane mounted substantially parallel with the driver and spaced a given distance therefrom, one of the membranes being perforate, whereby ultrasonic bending of the driver on actuation of the transducer causes a gas flow through the perforate membrane.

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patent: 7048519 (2006-05-01), Fong et al.
patent: 7284962 (2007-10-01), Blakey
patent: 44 22 743 (1996-01-01), None
patent: 93/10910 (1993-06-01), None

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