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公开(公告)号：US11214350B2
公开(公告)日：2022-01-04
申请号：US16257261
申请日：2019-01-25
Applicant: THE BOEING COMPANY
Inventor： Om Prakash , Megha Sahu , Shantanu Bhattacharya , Sanjay Kumar , Pulak Bhushan
IPC: B64C1/40 , B33Y10/00 , B33Y80/00 , B64D33/02 , G10K11/172
Abstract: A sound attenuation panel that includes an incident wall and a frame unit connected to the incident wall. The incident wall defines an aperture therethrough. The frame unit includes multiple spoke members spaced apart from one another and radially extending from one or more central hub openings of the frame unit. The one or more central hub openings align with the aperture of the incident wall. The frame unit defines channels between adjacent pairs of the spoke members. The channels fluidly connect to the one or more central hub openings. The frame unit is configured to receive sound waves into the central hub opening through the aperture of the incident wall to dissipate the sound waves through the channels between the spoke members.
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Patent Agency Ranking
公开(公告)号：US11697719B2
公开(公告)日：2023-07-11
申请号：US16806767
申请日：2020-03-02
Applicant: The Boeing Company
Inventor： Megha Sahu , Om Prakash , Shantanu Bhattacharya , Poonam Sundriyal
CPC classification number: C08J7/043 , B05D3/148 , C08J5/124 , C08J2371/00 , C08J2463/00
Abstract: The present disclosure provides a method of enhancing the shelf-life of an activated surface of a thermoplastic material, including: coating at least a portion of a surface of the thermoplastic material with at least one adhesion promoter to provide a coated surface; and treating the coated surface with plasma to provide the activated surface of the thermoplastic material; wherein the activated surface has a contact angle in the range of from about 0 to about 40°; and wherein the presence of the at least one adhesion promoter is effective to maintain the contact angle in the range of from about 0 to about 40° for a time of about 10 days or greater.
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公开(公告)号：US20210269608A1
公开(公告)日：2021-09-02
申请号：US16806767
申请日：2020-03-02
Applicant: The Boeing Company
Inventor： Megha Sahu , Om Prakash , Shantanu Bhattacharya , Poonam Sundriyal
Abstract: The present disclosure provides a method of enhancing the shelf-life of an activated surface of a thermoplastic material, including: coating at least a portion of a surface of the thermoplastic material with at least one adhesion promoter to provide a coated surface; and treating the coated surface with plasma to provide the activated surface of the thermoplastic material; wherein the activated surface has a contact angle in the range of from about 0 to about 40°; and wherein the presence of the at least one adhesion promoter is effective to maintain the contact angle in the range of from about 0 to about 40° for a time of about 10 days or greater.
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公开(公告)号：US20200239125A1
公开(公告)日：2020-07-30
申请号：US16257261
申请日：2019-01-25
Applicant: THE BOEING COMPANY
Inventor： Om Prakash , Megha Sahu , Shantanu Bhattacharya , Sanjay Kumar , Pulak Bhushan
IPC: B64C1/40
Abstract: A sound attenuation panel that includes an incident wall and a frame unit connected to the incident wall. The incident wall defines an aperture therethrough. The frame unit includes multiple spoke members spaced apart from one another and radially extending from one or more central hub openings of the frame unit. The one or more central hub openings align with the aperture of the incident wall. The frame unit defines channels between adjacent pairs of the spoke members. The channels fluidly connect to the one or more central hub openings. The frame unit is configured to receive sound waves into the central hub opening through the aperture of the incident wall to dissipate the sound waves through the channels between the spoke members.
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公开(公告)号：US20190103089A1
公开(公告)日：2019-04-04
申请号：US15719854
申请日：2017-09-29
Applicant: THE BOEING COMPANY
Inventor： Om Prakash , Shantanu Bhattacharya , Sanjay Kumar , Pulak Bhushan
Abstract: A composite panel assembly includes first and second elastic membranes and a structure. The structure has a first side mounted to the first elastic membrane and a second side mounted to the second elastic membrane. The structure includes a first honeycomb layer, a second honeycomb layer, and a plurality of necks. The first honeycomb layer has partition walls defining resonance cavities that are covered by the first elastic membrane along the first side. The second honeycomb layer has partition walls defining resonance cavities that are covered by the second elastic membrane along the second side. The necks are disposed between and connect the first and second honeycomb layers. Each neck defines a channel that is fluidly connected to a corresponding one of the resonance cavities of the first honeycomb layer and a corresponding one of the resonance cavities of the second honeycomb layer.
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公开(公告)号：US10726824B2
公开(公告)日：2020-07-28
申请号：US15719854
申请日：2017-09-29
Applicant: THE BOEING COMPANY
Inventor： Om Prakash , Shantanu Bhattacharya , Sanjay Kumar , Pulak Bhushan
IPC: G10K11/172 , B32B7/12 , B32B25/14 , B32B3/12 , B32B15/088 , B32B25/08 , B32B15/04 , B32B25/12 , B32B27/34 , B32B15/06 , B32B27/08 , B32B3/26 , B32B7/02 , B32B25/04 , B32B37/12 , B64C1/40 , B64C1/00
Abstract: A composite panel assembly includes first and second elastic membranes and a structure. The structure has a first side mounted to the first elastic membrane and a second side mounted to the second elastic membrane. The structure includes a first honeycomb layer, a second honeycomb layer, and a plurality of necks. The first honeycomb layer has partition walls defining resonance cavities that are covered by the first elastic membrane along the first side. The second honeycomb layer has partition walls defining resonance cavities that are covered by the second elastic membrane along the second side. The necks are disposed between and connect the first and second honeycomb layers. Each neck defines a channel that is fluidly connected to a corresponding one of the resonance cavities of the first honeycomb layer and a corresponding one of the resonance cavities of the second honeycomb layer.
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