-
公开(公告)号：US20180022936A1
公开(公告)日：2018-01-25
申请号：US15231617
申请日：2016-08-08
Applicant: The Boeing Company
Inventor： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
CPC classification number: C09D5/086 , B05D3/0254 , B05D3/067 , B05D7/14 , B05D7/572 , B05D7/576 , B05D2202/25 , B05D2518/12 , C08G77/58 , C09D5/08 , C09D183/14 , C23C18/122 , C23C18/1225 , C23C18/1241 , C23C18/1254
Abstract: An alkoxysilane is contacted with water and an inorganic acid to form a first composition. A zirconium alkoxide is contacted with an organic acid to form a second composition. One or more alkoxysilanes and an organic acid are contacted with a mixture of the first and second compositions to form a sol-gel composition, to which a photoinitiator is added. The sol-gel composition has a ratio of a number of moles of silicon to a number of moles of zirconium (nSi/nZr) ranging from about 2 to about 10. The sol-gel composition is applied on a substrate (e.g., an aluminum alloy substrate) multiple times to form multiple sol-gel layers, and at least one of the sol-gel layers is cured by UV radiation. The multiple sol-gel layers are then thermally cured.
-
公开(公告)号：US20240017101A1
公开(公告)日：2024-01-18
申请号：US17812240
申请日：2022-07-13
Applicant: The Boeing Company
Inventor： Om Prakash
IPC: A62C2/06
Abstract: A fire seal includes a bulk material and a phase-changing material supported by the bulk material. The bulk material of the fire seal is fire resistant.
-
公开(公告)号：US20230357944A1
公开(公告)日：2023-11-09
申请号：US18344608
申请日：2023-06-29
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.
-
公开(公告)号：US11661665B2
公开(公告)日：2023-05-30
申请号：US16863282
申请日：2020-04-30
Applicant: THE BOEING COMPANY
Inventor： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos
Abstract: In certain aspects, a coated steel substrate comprises a single or multiple-layer electroplated aluminum coating over a steel substrate. The multiple-layer electroplated aluminum coating comprises one or more porous layers and one or more compact layers. The one or more porous layers comprise a material selected from a group consisting of aluminum and aluminum alloys. The one or more compact layers comprise a material selected from a group consisting of aluminum and aluminum alloys. In certain aspects, a method of depositing a multiple-layer aluminum coating over a steel substrate includes electroplating one or more porous aluminum layers over the steel substrate. The one or more porous aluminum layers comprise a material selected from a group consisting of aluminum and aluminum alloys. One or more compact aluminum layers are electroplated over the steel substrate. The one or more compact aluminum layers comprise a material selected from a group consisting of aluminum and aluminum alloys.
-
公开(公告)号：US11633940B2
公开(公告)日：2023-04-25
申请号：US17364954
申请日：2021-07-01
Applicant: THE BOEING COMPANY
Inventor： Stephen P. Gaydos , Vijaykumar S. Ijeri , Om Prakash , Shashi Kant Tiwari , Raghuvir Singh , Sharma Paswan , Lokesh C. Pathak
Abstract: The present disclosure provides electrolyte solutions for electrodeposition of zinc-manganese alloys, methods of forming electrolyte solutions, methods of electrodepositing zinc-manganese alloys, and multilayered zinc-manganese alloys. An electrolyte solution for electroplating can include a metal salt, boric acid, an alkali metal chloride, polyethylene glycol, and a hydroxy benzaldehyde. An electrolyte solution can be formed by dissolving a metal salt, boric acid, an alkali metal chloride, polyethylene glycol, and a hydroxy benzaldehyde in water or an aqueous solution. Electrodepositing zinc-manganese alloys on a substrate can include introducing a cathode and an anode into an electrolyte solution comprising a metal salt, boric acid, an alkali metal chloride, polyethylene glycol, and a hydroxy benzaldehyde. Electrodepositing can further include passing a current between the cathode and the anode through the electrolyte solution to deposit zinc and manganese onto the cathode.
-
Patent Agency Ranking
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.
-
公开(公告)号：US20220184670A1
公开(公告)日：2022-06-16
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：US20220074066A1
公开(公告)日：2022-03-10
申请号：US17525308
申请日：2021-11-12
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.
-
公开(公告)号：US20210039369A1
公开(公告)日：2021-02-11
申请号：US16537484
申请日：2019-08-09
Applicant: The Boeing Company
Inventor： Nishant Kumar Sinha , Om Prakash
Abstract: Illustrative examples of forming and using suitably adapted materials for improving interface strength between thermoset-thermoplastic joined parts includes exposure of a thermoplastic substrate to a plasma to form an amine-functionalized substrate having amine chemical moieties disposed on a first surface. The first surface of the thermoplastic substrate is positioned adjacent to and contacts a second surface of a thermoset substrate to form a workpiece. The thermoset substrate includes epoxide chemical moieties on and within material forming the thermoset substrate. The workpiece is subsequently heated to form a structure, where heating of the workpiece causes covalent chemical bonds to form between the plasma-treated first surface of the thermoplastic substrate and the second surface of the thermoset substrate. Thereafter, additional thermoplastic components can be fusion bonded to a surface of the thermoplastic substrate opposite the first surface—thereby providing improved attachment of additional thermoplastic components to the thermoset substrate.
-
-
-
-
-
-
-
-
-
Search Results
88
records
(took 0.026 seconds)
