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US 2015/0122577 A1Published application
Low frequency acoustic attenuator and process for making same
AssigneeZIN Technologies
InventorsBART F. ZALEWSKI, WILLIAM B. DIAL
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Abstract
A method of manufacturing an acoustic attenuation device includes three-dimensionally printing a pair of sheets and webs that cooperate with the sheets to define attenuation chambers. Each chamber has at least one opening through which excited air resonates.
Claims21
A method of manufacturing an acoustic attenuation device, the method comprising:
- three-dimensionally printing a pair of sheets and webs that cooperate with the sheets to define attenuation chambers, each chamber having at least one opening through which excited air resonates.
An acoustic attenuation device extending from a first end to a second end comprising:
- first and second sheets;
- a plurality of webs positioned between the first and second sheets and cooperating with the first and second sheets to form a series of sound attenuation chambers containing a volume and mass of air;
- a first panel secured to the sheets and closing the chambers at the first end of the device;
- a second panel secured to the sheets and closing the chambers at the second end of the device;
- and
- an opening through which excited air resonates in fluid communication with each chamber.
3 more elements
Dependencies are inferred from the claim text.