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公开(公告)号：US20210031452A1
公开(公告)日：2021-02-04
申请号：US16527385
申请日：2019-07-31
Applicant: The Boeing Company
Inventor： Nishant Kumar Sinha , Om Prakash
IPC: B29C64/314 , C09D11/102 , C09D11/101 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B33Y80/00 , B33Y40/00 , B29C64/153 , B29C64/20 , B29C64/393
Abstract: Illustrative examples of forming material suitable for use in additive manufacturing processes includes operations of: exposing a first polymer powder to a first plasma, such that an amine-functionalized powder is formed; exposing a second polymer powder to a second plasma, such that an epoxide-functionalized powder is formed; and combining the amine-functionalized powder and the epoxide-functionalized powder to form a precursor material. The precursor material is subsequently heated in an additive manufacturing process to form a structure, where heating of the precursor material causes covalent chemical bonds to form between the first polymer powder and the second polymer powder.
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公开(公告)号：US10894360B2
公开(公告)日：2021-01-19
申请号：US16146314
申请日：2018-09-28
Applicant: The Boeing Company
Inventor： Om Prakash , Araveti Gupta
IPC: B29C64/255 , B29C64/214 , B29C64/336 , B29C64/245 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B29C64/153 , B29C64/165 , B33Y70/00
Abstract: An additive manufacturing system including a build plate and at least two powder reservoirs. The at least two powder reservoirs including a first powder reservoir configured to store a first powder and deposit the first powder onto the build plate, wherein the first powder reservoir is configured to move relative to the build plate, and a second powder reservoir configured to store a second powder and deposit the second powder onto the build plate, wherein the second powder reservoir is configured to move relative to the build plate. The first powder has at least one predetermined characteristic that is different than that of the second powder.
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公开(公告)号：US10828832B2
公开(公告)日：2020-11-10
申请号：US16146306
申请日：2018-09-28
Applicant: The Boeing Company
Inventor： Om Prakash , Araveti Gupta
IPC: B29C64/214 , B29C64/336 , B29C64/245 , B29C64/255 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B29C64/153 , B29C64/165 , B33Y70/00
Abstract: An additive manufacturing system including a build plate and a powder spreading unit having a plurality of recoater blades configured to spread powder onto the build plate. The powder spreading unit including a base member, and the plurality of recoater blades is coupled to the base member and configured to spread powder onto the build plate.
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公开(公告)号：US10793725B2
公开(公告)日：2020-10-06
申请号：US16355531
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: C07C45/80 , C09D5/08 , C09D5/00 , B05D1/02 , B05D1/18 , B05D3/06 , B05D5/00 , B05D7/14 , C23C26/00
Abstract: A Zn—Al layered double hydroxide (LDH) composition is added to a solution including a corrosion inhibitor and stirred, and a precipitate of the solution is collected, washed, and dried to form a corrosion inhibiting material (CIM), in which the LDH composition is intercalated with the corrosion inhibitor. An inorganic CIM and/or an organic CIM may be formed. The organic CIM may be added to a sol-gel composition to form an organic CIM-containing sol-gel composition, and the inorganic CIM may be added to a sol-gel composition to form an inorganic CIM-containing sol-gel composition. Further, the organic CIM-containing sol-gel composition may be applied on a substrate (e.g., an aluminum alloy substrate) to form an organic CIM-containing sol-gel layer and cured by ultraviolet (UV) radiation, the inorganic CIM-containing sol-gel composition may be applied on the substrate to form an inorganic CIM-containing sol-gel layer and cured by UV radiation, and the sol-gel layers may be thermally cured.
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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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Patent Agency Ranking
公开(公告)号：US20190300759A1
公开(公告)日：2019-10-03
申请号：US15942245
申请日：2018-03-30
Applicant: The Boeing Company
Inventor： Om Prakash , Megha Sahu
Abstract: Systems and methods for monitoring the health of an adhesive interface include the formation of an adhesive bond using an adhesive system incorporating molecular-scale magnetic markers covalently attached to polymer components, acquisition of images representing the distribution of magnetic markers within the adhesive bond at a first time and at a later time, and comparison of the images to detect displacement of the magnetic markers between the first time and the later time. The covalent link between the magnetic markers and the adhesive polymer components locks the magnetic markers in place as long as the adhesive bond remains healthy, so displacement of the magnetic markers between the first time and the later time indicates the presence of a bond defect. The images may be acquired using magnetic particle imaging and compared using digital image correlation. Chemical compositions for the magnetic markers are disclosed.
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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：US10246594B2
公开(公告)日：2019-04-02
申请号：US15231668
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
IPC: C08G63/02 , C09D5/10 , B05D3/06 , C23F11/06 , C23F11/173 , C23C18/12 , C23C22/66 , C23C22/68 , C23C22/83
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.
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公开(公告)号：US12203190B2
公开(公告)日：2025-01-21
申请号：US16940934
申请日：2020-07-28
Applicant: THE BOEING COMPANY
Inventor： Stephen P. Gaydos , Vijaykumar S. Ijeri , Om Prakash , Trilochan Mishra , Raghuvir Singh , Shashi Kant Tiwari
Abstract: The present disclosure provides electrolyte solutions for electrodeposition of zinc-iron alloys, methods of forming electrolyte solutions, and methods of electrodepositing zinc-iron alloys. An electrolyte solution for electroplating can include an alkali metal citrate, an alkali metal acetate, a citric acid, and glycine with a metal salt. An electrolyte solution can be formed by dissolving an alkali metal citrate, an alkali metal acetate, a citric acid, and glycine in water or an aqueous solution. Electrodepositing zinc-iron alloys on a substrate can include introducing a cathode and an anode into an electrolyte solution comprising an alkali metal citrate, an alkali metal acetate, a citric acid, and glycine. Electrodepositing can further include passing a current between the cathode and the anode through the electrolyte solution to deposit zinc and iron onto the cathode.
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公开(公告)号：US12163877B2
公开(公告)日：2024-12-10
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
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.
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