-
公开(公告)号：US12269070B2
公开(公告)日：2025-04-08
申请号：US17552956
申请日：2021-12-16
Applicant: The Boeing Company
Inventor： Om Prakash , Megha Sahu , Sandeep Tripathi , Kamaraj Kandhasamy , Carolyn L. Kupper
Abstract: An apparatus for removing material from an object surface is disclosed, including a fluid source, a flexible carrier, and a tubular member. The tubular member is connected to the flexible carrier, which is configured to conform to the object surface. The tubular member is configured to carry fluid from the fluid source to the flexible carrier, and has an aperture configured to release fluid and generate cavitation bubbles proximate the object surface.
-
公开(公告)号：US12037499B2
公开(公告)日：2024-07-16
申请号：US16710978
申请日：2019-12-11
Applicant: The Boeing Company
Inventor： Megha Sahu , Om Prakash
IPC: C09D11/102 , B29C64/118 , B29C64/209 , B33Y10/00 , B33Y30/00 , B33Y70/10 , B33Y80/00 , C08K5/09 , C08K5/134 , C08K7/02 , C09D171/00 , B29K71/00 , B29K105/16
CPC classification number: C09D11/102 , B29C64/118 , B29C64/209 , B33Y10/00 , B33Y30/00 , B33Y70/10 , B33Y80/00 , C08K5/09 , C08K5/1345 , C08K7/02 , C09D171/00 , B29K2071/00 , B29K2105/167
Abstract: A process for additive manufacture of an article comprises conveying a material through a heated nozzle to form a flowing mass of the material. The material comprises a polymer matrix including a plurality of polymeric chains and an alignment additive dispersible within the polymer matrix. The alignment additive is configured to align the plurality of polymeric chains in a flow direction of the flowing mass of the material. The process further comprises aligning at least a portion of the polymeric chains, via the alignment additive, along a direction of flow through the heated nozzle, releasing the flowing mass of the material from the heated nozzle, and allowing the material to solidify.
-
3.发明授权公开(公告)号：US10214620B2
公开(公告)日：2019-02-26
申请号：US15582475
申请日：2017-04-28
Applicant: The Boeing Company
Inventor： Om Prakash , Megha Sahu , Ashok Raichur
IPC: C09C3/10 , C08J5/00 , C09C1/44 , C08J3/12 , C01B32/198
Abstract: A method of making a nano-reinforcement filler material for an epoxy resin system for a composite structure is provided. The method includes forming a polymer suspension of polymer nanoparticles suspended in deionized (DI) water, and sonicating the polymer suspension. The method includes forming a graphene oxide (GO) suspension of GO sheets suspended in DI water, and sonicating the GO suspension. The method includes mixing the sonicated polymer suspension and the sonicated GO suspension to obtain a sonicated mixture. The method includes heating the sonicated mixture in an inert atmosphere at an effective temperature, and using an electrostatic process to uniformly wrap individual polymer nanoparticles with individual GO sheets, via an electrostatic interaction reaction, to obtain the nano-reinforcement filler material comprising polymer-GO core-shell nanoparticles. The method includes washing and drying the nano-reinforcement filler material, and using it in the epoxy resin system for the composite structure.
-
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.
-
公开(公告)号：US20210237140A1
公开(公告)日：2021-08-05
申请号：US16778005
申请日：2020-01-31
Applicant: The Boeing Company
Inventor： Praveen Konka , Venkata Reddy Nallagundla , Om Prakash , Megha Sahu
IPC: B21D31/00
Abstract: A tool for use during double sided incremental forming of a workpiece. The tool includes a sleeve with a hollow interior space. A contact member is positioned within the hollow interior space of the sleeve. The contact member is sized with a working tip positioned outward beyond the sleeve to contact against a workpiece. A mount is positioned on the opposing end of the sleeve and configured to connect to a tool holder. The tool is configured to provide for translational and/or rotational movement of the contact member. The axial and rotational movement provides for the working tip to remain in contact with the workpiece during the forming process.
-
Patent Agency Ranking
公开(公告)号：US20210179869A1
公开(公告)日：2021-06-17
申请号：US16710978
申请日：2019-12-11
Applicant: The Boeing Company
Inventor： Megha Sahu , Om Prakash
IPC: C09D11/102 , B33Y10/00 , B33Y30/00 , B33Y70/10 , B29C64/118 , B29C64/209
Abstract: A process for additive manufacture of an article comprises conveying a material through a heated nozzle to form a flowing mass of the material. The material comprises a polymer matrix including a plurality of polymeric chains and an alignment additive dispersible within the polymer matrix. The alignment additive is configured to align the plurality of polymeric chains in a flow direction of the flowing mass of the material. The process further comprises aligning at least a portion of the polymeric chains, via the alignment additive, along a direction of flow through the heated nozzle, releasing the flowing mass of the material from the heated nozzle, and allowing the material to solidify.
-
7.发明授权公开(公告)号：US10926325B2
公开(公告)日：2021-02-23
申请号：US16146400
申请日：2018-09-28
Applicant: The Boeing Company
Inventor： Om Prakash , Megha Sahu
IPC: B29C64/165 , B29C64/106 , B29C64/20 , B33Y10/00 , B33Y30/00 , B33Y80/00 , B22F1/00 , B22F3/11 , B29C64/245 , B22F3/105 , B33Y70/00
Abstract: A method of additive manufacturing is provided. The method of additive manufacturing includes depositing a layer of base material from which an additively manufactured part is produced. The method also includes dissolving a resin in a solvent to form a resin solution, and depositing the resin solution upon the layer of base material.
-
8.发明申请公开(公告)号：US20180312647A1
公开(公告)日：2018-11-01
申请号：US15582475
申请日：2017-04-28
Applicant: The Boeing Company
Inventor： Om Prakash , Megha Sahu , Ashok Raichur
CPC classification number: C08J5/005 , C01B32/198 , C08J3/128 , C08J2325/06 , C08J2363/00 , C08J2425/06 , C09C1/44 , C09C3/10
Abstract: A method of making a nano-reinforcement filler material for an epoxy resin system for a composite structure is provided. The method includes forming a polymer suspension of polymer nanoparticles suspended in deionized (DI) water, and sonicating the polymer suspension. The method includes forming a graphene oxide (GO) suspension of GO sheets suspended in DI water, and sonicating the GO suspension. The method includes mixing the sonicated polymer suspension and the sonicated GO suspension to obtain a sonicated mixture. The method includes heating the sonicated mixture in an inert atmosphere at an effective temperature, and using an electrostatic process to uniformly wrap individual polymer nanoparticles with individual GO sheets, via an electrostatic interaction reaction, to obtain the nano-reinforcement filler material comprising polymer-GO core-shell nanoparticles. The method includes washing and drying the nano-reinforcement filler material, and using it in the epoxy resin system for the composite structure.
-
公开(公告)号：US11623252B2
公开(公告)日：2023-04-11
申请号：US17193139
申请日：2021-03-05
Applicant: THE BOEING COMPANY
Inventor： Om Prakash , Megha Sahu , Kamaraj Kandhasamy , Sandeep Tripathi , Carolyn L. Kupper , Stephen P. Gaydos
Abstract: A method of using an ultrasonic system includes positioning at least one component to a ultrasonic system, the ultrasonic system including: an ultrasonic device, comprising a plurality of ultrasonic transducers coupled to a flexible body; a power supply coupled to the ultrasonic device; a fluid vessel configured to supply fluid to the at least one component; and a waste vessel configured to collect the fluid supplied to the ultrasonic device from the fluid vessel. The method includes applying, via the power supply, a current to a plurality of ultrasonic transducers to dislodge a plurality of contaminants from the at least one component. The method includes flushing, via fluid from the fluid vessel, the plurality of contaminants dislodged from the at least one component.
-
公开(公告)号：US11484932B2
公开(公告)日：2022-11-01
申请号：US16778005
申请日：2020-01-31
Applicant: The Boeing Company
Inventor： Praveen Konka , Venkata Reddy Nallagundla , Om Prakash , Megha Sahu
Abstract: A tool for use during double sided incremental forming of a workpiece. The tool includes a sleeve with a hollow interior space. A contact member is positioned within the hollow interior space of the sleeve. The contact member is sized with a working tip positioned outward beyond the sleeve to contact against a workpiece. A mount is positioned on the opposing end of the sleeve and configured to connect to a tool holder. The tool is configured to provide for translational and/or rotational movement of the contact member. The axial and rotational movement provides for the working tip to remain in contact with the workpiece during the forming process.
-
-
-
-
-
-
-
-
-
Search Results
24
records
(took 0.019 seconds)
