US Patent 8997923 Sound wave guide for use in acoustic structures
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Patent abstract
The bandwidth or acoustical range of an acoustic structure is increased by locating a sound wave guide within the acoustic cell. The wave guide divides the cell into two acoustical chambers. The two chambers provide an effective increase in resonator length of the cell.
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Patent Inventor Names
Fumitaka Ichihashi0
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US Patent 08997923 Sound wave guide for use in acoustic structures US Patent 8997923 Sound wave guide for use in acoustic structures
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Patent Number
08997923
Patent Number
8997923
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US Patent 08997923 Sound wave guide for use in acoustic structures
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Is a
Patent jurisdiction
Patent number
08997923
Date of patent
April 7, 2015
Patent application number
13964629
Date Filed
August 12, 2013
Patent primary examiner
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