US Patent 7559406 Acoustic fluid machine

Patent 7559406 was granted and assigned to Anest Iwata on July, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Anest Iwata

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7559406

Date of Patent

July 14, 2009

Patent Application Number

11689142

Date Filed

March 21, 2007

Patent Primary Examiner

‌

Jeremy Luks

Patent abstract

In an acoustic fluid machine, an acoustic resonator gradually reduces in diameter towards the top on which a valve device is provided to suck a gas into the resonator. The gas is compressed in the resonator by a circular-plate piston at the lower end of the resonator and discharged via an outlet of the valve device. The piston comprises a rubber plate fixed to the resonator and a metal plate attached on the rubber plate.