Invention Grant
- Patent Title: Sound absorbing duct with foam-filled honeycomb core for environmental control system
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Application No.: US16105837Application Date: 2018-08-20
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Publication No.: US11712872B2Publication Date: 2023-08-01
- Inventor: Douglas D. Maben , Bryce A. Vandyke , Mark M. Gmerek , David R. C. Cannal
- Applicant: THE BOEING COMPANY
- Applicant Address: US IL Chicago
- Assignee: THE BOEING COMPANY
- Current Assignee: THE BOEING COMPANY
- Current Assignee Address: US IL Chicago
- Agency: Jordan IP Law, LLC
- Main IPC: F16L9/21
- IPC: F16L9/21 ; B29C44/18 ; B32B5/18 ; B29C70/30 ; B29C70/54 ; B29D23/00 ; B64D13/06 ; G10K11/168 ; B29K105/04
Abstract:
A duct includes a foam-filled honeycomb core structure having a tubular shape. The duct further includes an air-impermeable duct wall coupled to an exterior surface of the foam-filled honeycomb core structure.
Public/Granted literature
- US20200056727A1 SOUND ABSORBING DUCT WITH FOAM-FILLED HONEYCOMB CORE FOR ENVIRONMENTAL CONTROL SYSTEM Public/Granted day:2020-02-20
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