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公开(公告)号：US11673323B2
公开(公告)日：2023-06-13
申请号：US17326707
申请日：2021-05-21
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , Joshua Tyler Mook , Kwok Pong Chan , William C. Alberts , Vadim Bromberg
CPC classification number: B29C64/165 , B33Y10/00 , B33Y70/10 , B33Y80/00 , C08K5/0041 , C09B57/00
Abstract: A method of manufacturing a green body part comprises depositing a layer of a powder on a working surface; and selectively depositing a binder solution comprising a thermoplastic binder, a fluorescent material, and a binder medium into the layer of powder in a pattern representative of a structure of a layer of the green body part. The thermoplastic binder comprises one or more polymer strands dissolved in a solvent medium having an average molecular weight from greater than or equal to 7,000 g/mol to less than or equal to 100,000 g/mol. Binder solutions comprising fluorescent material and green body parts adhered together using the same are also disclosed.
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22.发明申请公开(公告)号：US20210370547A1
公开(公告)日：2021-12-02
申请号：US17325332
申请日：2021-05-20
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , Kwok Pong Chan , William C. Alberts , Xi Yang , Mary Kathryn Thompson
Abstract: A binder solution comprises a fugitive metal precursor, a thermoplastic binder, and a solvent. The fugitive metal precursor may comprise an alkaline earth metal, a transition metal, a post-transition metal, a metalloid, a rare earth metal, or combinations thereof. The fugitive metal precursor may comprise a salt such as carboxylate, nitrate, sulfate, carbonate, formate, chloride, halide, derivatives thereof, and combinations thereof. A method of manufacturing a part includes depositing a layer of particulate material on a working surface, selectively applying a binder solution into the layer of particulate material in a pattern representative of a layer of the part, repeating the steps of depositing and selectively applying to form a plurality of layers of particulate material with the applied binder solution, and curing the applied binder solution in the plurality of layers of particulate material with the applied binder solution to evaporate the solvent and form a green body part.
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公开(公告)号：US20190003940A1
公开(公告)日：2019-01-03
申请号：US15639511
申请日：2017-06-30
Applicant: General Electric Company , University of Akron
Inventor： Arunkumar Natarajan , John Richard Nelson , Patrick McCoy Spooner , Ralf Lenigk , Wei Gao , Kwok Pong Chan , Lakshmi Sireesha Kaanumalle , Abraham Joy , Nicholas Nun
Abstract: A method includes providing a biological sample, providing a sample collection device, wherein the sample collection device includes a sample binding surface including a photodegradable polymer configured to bind the biological sample, contacting the biological sample with the sample binding surface of the sample collection device, and irradiating the sample binding surface and the bound biological sample using light emitted from a light source to initiate degradation of the photodegradable polymer of the sample binding surface to cause release of the biological sample.
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公开(公告)号：US20160237097A1
公开(公告)日：2016-08-18
申请号：US14621776
申请日：2015-02-13
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Arunkumar Natarajan , Anup Sood , Lakshmi Sireesha Kaanumalle
IPC: C07F5/02
CPC classification number: C07F5/02
Abstract: A borate compound for use as photoinduced chemical bleaching reagent is disclosed having improved bleaching performance under certain conditions, compared to neutral borates. The compounds are comprised of Formula I; R1R2R3R4BXa I where each R1, R2, and R3 and R4 is, independently, an alkyl, alkylaryl, or arylalkyl, with the proviso that at least one of R1, R2, and R3 and R4 is an alkyl group and at least two of R1, R2, R3 and R4 group is positively charged; X is an anion; and a equals 1, 2, or 3.
Abstract translation: 公开了与中性硼酸盐相比，用于光诱导化学漂白剂的硼酸盐化合物在某些条件下具有改善的漂白性能。 该化合物由式I组成; R1R2R3R4BXa其中R1，R2和R3和R4独立地为烷基，烷基芳基或芳基烷基，条件是R1，R2和R3和R4中的至少一个是烷基，R1至少两个 ，R2，R3和R4基团带正电荷; X是阴离子; 和等于1,2或3。
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公开(公告)号：US09250245B2
公开(公告)日：2016-02-02
申请号：US14010889
申请日：2013-08-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Arunkumar Natarajan , Anup Sood , Lakshmi Sireesha Kaanumalle , Kwok Pong Chan
IPC: G01N33/53 , G01N33/532 , G01N33/533 , G01N21/76 , G01N33/58 , G01N21/64
CPC classification number: G01N33/582 , G01N21/64 , G01N21/6428
Abstract: Methods comprising the use of photoactivated chemical bleaching for detecting multiple targets in a biological sample are provided. The methods include the steps of providing a biological sample containing multiple targets, binding at least one probe to one or more target present in the sample, and observing a signal from the probe. The method further includes the steps of contacting the sample comprising the bound probe with an electron transfer reagent and irradiating the sample, thereby initiating a photoreaction that substantially inactivates the probe by photoactivated chemical bleaching. The method further includes the steps of binding at least one probe to one or more target present in the sample, and observing a signal from the probe. The process of binding, observing and bleaching may be iteratively repeated.
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Patent Agency Ranking
公开(公告)号：US20220305556A1
公开(公告)日：2022-09-29
申请号：US17838936
申请日：2022-06-13
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , Carlos Bonilla Gonzalez , Kwok Pong Chan
Abstract: A binder solution configured for use in binder jet printing is provided. The binder solution may include a primer, a surfactant, and a linkable thermoplastic binder comprising a first polymer strand and a second polymer strand, wherein the first polymer strand comprises a first functional group and the second polymer strand comprises a second functional group, and wherein the first and second functional groups are configured to non-covalently couple at least a portion of the second polymer strand with at least a portion of the first polymer strand; wherein the first polymer strand and the second polymer strand are both polymer strands of the same thermoplastic polymer, and wherein the first polymer strand further comprises the second functional group and the second polymer strand further comprises the first functional group.
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公开(公告)号：US20220274169A1
公开(公告)日：2022-09-01
申请号：US17743674
申请日：2022-05-13
Applicant: General Electric Company
Inventor： Daniel Jason Erno , Arunkumar Natarajan , Ken Ivcar Salas Nobrega , Ananda Barua
IPC: B22F3/24 , B33Y40/00 , B33Y50/02 , B33Y80/00 , B29C64/153 , B29C64/393 , B29C64/35 , B28B1/00 , B28B11/22 , B22F10/10
Abstract: An article of manufacture includes a part structure formed via a first additive manufacturing process and a floating structure within the part structure which is mechanically decoupled from the part structure. The floating structure is formed concurrently with the part structure via the first additive manufacturing process.
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公开(公告)号：US10821485B2
公开(公告)日：2020-11-03
申请号：US16003798
申请日：2018-06-08
Applicant: General Electric Company
Inventor： Ananda Barua , Daniel Jason Erno , Arunkumar Natarajan , Ken Ivcar Salas Nobrega , Uttara Vijay Kumar , John Francis Morrison
Abstract: A powder removal system includes a plurality of tubes including upstream and downstream ends, a manifold fluidly coupled to the tubes, and a pressurized air supply fluidly coupled to the manifold supplying pressurized air to the tubes via the manifold. The downstream ends of the tubes are inserted into a plurality of channels partially filled with powder.
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公开(公告)号：US20200290120A1
公开(公告)日：2020-09-17
申请号：US16891294
申请日：2020-06-03
Applicant: General Electric Company
Inventor： Ananda Barua , Sathyanarayanan Raghavan , Ken Salas Nobrega , Vadim Bromberg , Arunkumar Natarajan
IPC: B22F3/00 , B33Y10/00 , B33Y40/00 , B33Y80/00 , B29C64/379 , B29C64/165 , B28B1/00 , C04B35/622 , C04B35/634 , C04B35/638 , C04B35/64
Abstract: A method includes assembling a setter assembly onto a binder-jet printed part, wherein the setter assembly includes a base, a top setter, a bottom setter positioned between the base and the top setter, and a support pin extending between the base and the top setter having a terminus that abuts an inward facing surface of the top setter, such that at least portion of the binder-jet printed part is nested between the top setter and the bottom setter. The method includes heating the binder-jet printed part and the setter assembly to debind or sinter the binder-jet printed part, wherein a length of the support pin decreases in response to the heating to move the top setter toward the base.
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公开(公告)号：US20190374983A1
公开(公告)日：2019-12-12
申请号：US16003798
申请日：2018-06-08
Applicant: General Electric Company
Inventor： Ananda Barua , Daniel Jason Erno , Arunkumar Natarajan , Ken Ivcar Salas Nobrega , Uttara Vijay Kumar , John Francis Morrison
Abstract: A powder removal system includes a plurality of tubes including upstream and downstream ends, a manifold fluidly coupled to the tubes, and a pressurized air supply fluidly coupled to the manifold supplying pressurized air to the tubes via the manifold. The downstream ends of the tubes are inserted into a plurality of channels partially filled with powder.
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