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公开(公告)号：US11773502B2
公开(公告)日：2023-10-03
申请号：US17476894
申请日：2021-09-16
Applicant: The Boeing Company
Inventor： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Nitin Pandurang Wasekar , Govindan Sundararajan , Dameracharla Srinivasa Rao
Abstract: An electrolyte solution for iron-tungsten plating is prepared by dissolving in an aqueous medium a divalent iron salt (e.g., iron (II) sulfate) and an alkali metal citrate (e.g., sodium citrate, potassium citrate, or other alkali metal citrate) to form a first solution, dissolving in the first solution a tungstate salt (e.g., sodium tungstate, potassium tungstate, or other potassium tungstate) to form a second solution, and dissolving in the second solution a citric acid to form the electrolyte solution. An iron-tungsten coating is formed on a substrate using the electrolyte solution by passing a current between a cathode and an anode through the electrolyte solution to deposit iron and tungsten on the substrate.
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公开(公告)号：US11739225B2
公开(公告)日：2023-08-29
申请号：US16533647
申请日：2019-08-06
Applicant: The Boeing Company
Inventor： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
IPC: C09D5/08 , C09D7/65 , C09D7/80 , C23C18/12 , C08K3/32 , C09D5/10 , C09D183/08 , C09D5/00 , C09D5/03 , C09D7/40 , C09D201/10 , C08K3/18 , C08K3/28
CPC classification number: C09D5/08 , C08K3/32 , C09D5/106 , C09D7/65 , C09D7/80 , C09D183/08 , C23C18/122 , C23C18/1216 , C23C18/1225 , C23C18/1254 , C08K3/18 , C08K3/28 , C08K2003/328 , C08K2201/011 , C09D5/002 , C09D5/038 , C09D7/67 , C09D201/10 , C23C2222/20
Abstract: A layered tetravalent metal phosphate composition (e.g., a layered zirconium phosphate composition) and a first corrosion inhibitor (e.g., cerium (III), a vanadate, a molybdate, a tungstate, a manganous, a manganate, a permanganate, an aluminate, a phosphonate, a thiazole, a triazole, and/or an imidazole) is dispersed in an aqueous solution and stirred to form a first solution. A precipitate of the first solution is collected and washed to form a first corrosion inhibiting material (CIM), which includes the first corrosion inhibitor intercalated in the layered tetravalent metal phosphate composition. The first CIM is added to a first sol-gel composition to form a first CIM-containing sol-gel composition. The first CIM-containing sol-gel composition is applied on a substrate to form a CIM-containing sol-gel layer, cured by UV radiation, and thermally cured to form a corrosion-resistant coating. One or more additional sol-gel composition may be applied on the substrate.
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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：US11649362B2
公开(公告)日：2023-05-16
申请号：US17376618
申请日：2021-07-15
Applicant: The Boeing Company
Inventor： Kamaraj Kandhasamy , Om Prakash , Patrick J. Kinlen , Stephen P. Gaydos
Abstract: A conductive polymer coating composition including a conductive fibrillated structure and a base polymer, wherein the conductive fibrillated structure includes a fibrillated polymer and a conductive polymer grafted on the fibrillated polymer, and wherein the conductive polymer coating composition has an electrical conductivity from about 10−5 S/cm to about 10+1 S/cm and a thermal conductivity from about 1.1 W/m K to about 3 W/m K.
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公开(公告)号：US11208731B2
公开(公告)日：2021-12-28
申请号：US15618850
申请日：2017-06-09
Applicant: The Boeing Company
Inventor： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Nitin Pandurang Wasekar , Govindan Sundararajan , Dameracharla Srinivasa Rao
Abstract: An electrolyte solution for iron-tungsten plating is prepared by dissolving in an aqueous medium a divalent iron salt (e.g., iron (II) sulfate) and an alkali metal citrate (e.g., sodium citrate, potassium citrate, or other alkali metal citrate) to form a first solution, dissolving in the first solution a tungstate salt (e.g., sodium tungstate, potassium tungstate, or other potassium tungstate) to form a second solution, and dissolving in the second solution a citric acid to form the electrolyte solution. An iron-tungsten coating is formed on a substrate using the electrolyte solution by passing a current between a cathode and an anode through the electrolyte solution to deposit iron and tungsten on the substrate.
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Patent Agency Ranking
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.
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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.
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8.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.
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公开(公告)号：US20190322393A1
公开(公告)日：2019-10-24
申请号：US16503266
申请日：2019-07-03
Applicant: The Boeing Company
Inventor： John H. Belk , Om Prakash
Abstract: A non-destructive examination (NDE) system for use on a structural element comprises nano-energetic actuators configured for creating a controlled combustion in response to thermal energy, thereby inducing vibrations in a surface of the structural element. The NDE system further comprises sensors configured for measuring the vibrations induced in the surface of the structural element and generating vibration data. An applique comprises a planar substrate, nano-energetic actuators affixed to the planar substrate, each configured for creating controlled combustions in response to thermal energy, and an adhesive affixed to the planar substrate, such that the applique can be adhered to a structural element. A means of transportation having an accumulation of ice comprises a structural element, and nano-energetic actuators, each configured for creating a controlled combustion in response to thermal energy, thereby inducing vibrations in a surface of the structural element great enough to generate cracks in the ice.
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10.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.
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