公开(公告)号：US20190211215A1

公开(公告)日：2019-07-11

申请号：US16355625

申请日：2019-03-15

Applicant: The Boeing Company

Inventor： Vijaykumar S. Ijeri ,  Om Prakash ,  Stephen P. Gaydos ,  Raghavan Subasri ,  Kalidindi Ramachandra Soma Raju ,  Dendi Sreenivas Reddy

IPC: C09D5/10 ,  C23C18/12 ,  C23F11/173 ,  C23F11/06 ,  C23C22/83 ,  C23C22/68 ,  B05D3/06 ,  C23C22/66

Abstract: A corrosion-resistant coating on an aluminum-containing substrate such as an aluminum substrate, an aluminum alloy substrate (e.g., AA 2024, AA 6061, or AA7075), or other aluminum-containing substrate includes a corrosion inhibitor-incorporated Zn—Al layered double hydroxide (LDH) layer and a sol-gel layer. A zinc salt and a corrosion inhibitor (e.g., a salt of an oxyanion of a transition metal such as a vanadate) is dissolved to form a zinc-corrosion inhibitor solution, and the substrate is immersed in or otherwise contacted with the solution to form the corrosion inhibitor-incorporated Zn—Al LDH layer on the substrate. A sol-gel composition is applied on the corrosion inhibitor-incorporated Zn—Al LDH layer of the substrate to form a sol-gel layer, and the sol-gel layer is cured.

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：US10189072B2

公开(公告)日：2019-01-29

申请号：US14678092

申请日：2015-04-03

Applicant: The Boeing Company

Inventor： John Huntley Belk ,  Om Prakash

IPC: B21D31/00 ,  B21D37/16 ,  B21D35/00

Abstract: A method of making a sheet metal component from a tailored blank includes altering an initial blank formed from a first material to form the tailored blank by at least one of (i) coupling additional material to a portion of the first material, and (ii) removing the first material from a portion of the initial blank. The method also includes forming the sheet metal component from the tailored blank by an incremental sheet forming process.

公开(公告)号：US20180355498A1

公开(公告)日：2018-12-13

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

IPC: C25D3/56 ,  C25D5/10 ,  C25D5/18 ,  C22C38/12 ,  B32B15/01

CPC classification number: C25D3/562 ,  B32B15/011 ,  B32B15/015 ,  B32B2255/06 ,  B32B2255/205 ,  C22C38/12 ,  C25D5/10 ,  C25D5/18

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：US20180346145A1

公开(公告)日：2018-12-06

申请号：US15614557

申请日：2017-06-05

Applicant: The Boeing Company

Inventor： Om Prakash ,  Kanakasabapathi Subramanian ,  Shantanu Pal ,  Radhakrishnan Anbarasan

IPC: B64D45/02 ,  H01H85/42 ,  H01T1/08 ,  G01W1/16

Abstract: A lightning protection apparatus and related methods are described. The lightning protection apparatus includes a housing that defines a cavity, a gas generating device disposed within the housing, and a signal acquisition device. The housing is coupled to an aircraft. The signal acquisition device is configured to detect a lightning arc and responsively activate the gas generating device to emit a stream of gas to suppress the lightning arc.

公开(公告)号：US12285808B2

公开(公告)日：2025-04-29

申请号：US17378292

申请日：2021-07-16

Applicant: THE BOEING COMPANY

Inventor： Om Prakash ,  Sandeep Tripathi ,  Megha Sahu ,  Kamaraj Kandhasamy ,  Carolyn L. Kupper

IPC: B23B31/30 ,  B08B9/027 ,  B23Q3/06 ,  B08B9/032

Abstract: The present disclosure provides coupling systems for use in industrial systems to removably couple one or more components to the industrial system. The coupling systems discussed herein employ a flexible sleeve in addition to one or more components. The flexible sleeve can have a component disposed therein. When pressure is applied to the flexible sleeve, the flexible sleeve constricts around the component, securing the component in the coupling system and thus to the industrial system. Once the component is secured, the industrial system executes one or more processes on the component. The coupling systems discussed herein can accommodate components of varying internal and external geometries as well as internal and/or external coatings and surface finishes.

公开(公告)号：US20240018708A1

公开(公告)日：2024-01-18

申请号：US17812223

申请日：2022-07-13

Applicant: The Boeing Company

Inventor： Om Prakash ,  Kamaraj Kandhasamy

IPC: D04H13/00 ,  C03C25/1095

CPC classification number: D04H13/008 ,  C03C25/1095 ,  C03C2217/78 ,  D10B2101/06 ,  D10B2401/04

Abstract: A fire seal having self-healing material properties includes an amorphous material and a bulk material supporting the amorphous material. The bulk material is fire resistant.

公开(公告)号：US11654622B2

公开(公告)日：2023-05-23

申请号：US16527433

申请日：2019-07-31

Applicant: The Boeing Company

Inventor： Nishant Kumar Sinha ,  Om Prakash

IPC: B32B13/08 ,  B29C64/147 ,  B29C64/314 ,  B29C64/393 ,  B29C64/268 ,  B29B13/08 ,  B29K101/12

CPC classification number: B29C64/147 ,  B29B13/08 ,  B29C64/268 ,  B29C64/314 ,  B29C64/393 ,  B29K2101/12

Abstract: Illustrative examples of forming and using suitably adapted material in an additive manufacturing process includes operations of: exposing a first polymer sheet to a first plasma, such that an amine-functionalized sheet surface is formed; exposing a second polymer sheet to a second plasma, such that an epoxide-functionalized sheet surface is formed; and combining the amine-functionalized sheet and the epoxide-functionalized sheet, such that the amine-functionalized sheet surface contacts the epoxide-functionalized sheet surface. 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 polymer sheet and the plasma-treaded second polymer sheet.

公开(公告)号：US11633925B2

公开(公告)日：2023-04-25

申请号：US16537471

申请日：2019-08-09

Applicant: The Boeing Company

Inventor： Nishant Kumar Sinha ,  Om Prakash

IPC: B29C65/00 ,  B29K63/00 ,  B29K101/12

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.

公开(公告)号：US20220234762A1

公开(公告)日：2022-07-28

申请号：US17511152

申请日：2021-10-26

Applicant: The Boeing Company

Inventor： Om Prakash ,  Megha Sahu ,  Kanakasabapathi Subramanian ,  Venkatrao Chunchu ,  Radhakrishnan Anbarasan

IPC: B64F5/60 ,  G01N17/00

Abstract: A sensing instrument includes a first electrode, a second electrode that surrounds the first electrode, and a sensing module configured to sense a capacitance of a material by applying a voltage between the first electrode and the second electrode while the first electrode and the second electrode are adjacent to the material. A method of operating a sensing instrument includes applying a voltage between a first electrode and a second electrode while the first electrode and the second electrode are positioned adjacent to a material. The second electrode surrounds the first electrode. The method further includes sensing a capacitance of the material based on a response of the material to the voltage.