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公开(公告)号：US11865615B2
公开(公告)日：2024-01-09
申请号：US17117200
申请日：2020-12-10
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Emanuel M. Sachs , Michael Goldblatt , Jeffrey von Loesecke
Abstract: Techniques for depowdering additively fabricated parts are described. The techniques utilize various mechanisms to separate powder from parts. For instance, techniques for depowdering described herein may include fabrication of auxiliary structures in addition to fabrication of parts. Certain auxiliary structures may aid with depowdering operations, and may be fabricated along with parts during an additive fabrication process. The auxiliary structures may be shaped and/or have positional and/or geometrical relationships to the parts during fabrication. For instance, an auxiliary structure may include a cage structure fabricated around one or more parts.
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公开(公告)号：US20180297284A1
公开(公告)日：2018-10-18
申请号：US15892895
申请日：2018-02-09
Applicant: Desktop Metal, Inc.
Inventor： Ricardo Fulop , Robert Michael Shydo, JR. , Jonah Samuel Myerberg , Charles Edward Martin , Justin Cumming , Paul Hoisington , Emanuel M. Sachs , George Hudelson , Daniel Sachs , Jamison Go , Eric Wong , Alexander K. McCalmont
IPC: B29C64/35 , B22F3/00 , B29C64/165 , B33Y10/00 , B33Y30/00
CPC classification number: B29C64/35 , B08B3/12 , B08B5/02 , B08B7/028 , B22F3/008 , B22F3/1055 , B22F2003/1046 , B22F2003/1056 , B22F2003/1058 , B22F2003/1059 , B22F2301/00 , B29C64/165 , B29C64/357 , B33Y10/00 , B33Y30/00 , B33Y40/00 , Y02P10/295
Abstract: A system for separating objects within a stacked powder print bed of nested objects comprises a build box configured to contain the powder print bed. The build box has a build box top and a build box floor. The system further includes an elongated aperture formed in a side wall of the build box, and a de-powdering subsystem configured to mechanically and electrically engage the build box. A separating blade associated with the de-powdering subsystem is configured to be inserted through the elongated aperture and into the powder print bed between a top-most print bed layer of the nested objects and a second print bed layer directly below and contiguous with the top-most layer, thereby forming an isolated powder print bed between the separating blade and the build box top. The unbound powder may be agitated by various techniques and subsequently removed from the objects.
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公开(公告)号：US11833585B2
公开(公告)日：2023-12-05
申请号：US16989149
申请日：2020-08-10
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Robert Michael Shydo, Jr. , Emanuel M. Sachs , Michael Santorella , Midnight Zero , Jonah Samuel Myerberg , Joseph Gabay , Jeffrey von Loesecke , Alexander K. McCalmont
Abstract: Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from parts through vibration of the powder, the parts, and/or structures mechanically connected to the powder and/or parts. For instance, the application of vibration may dislodge, aerate and/or otherwise increase the flowability of regions of the powder, thereby making it easier to remove the powder with a suitable means. Techniques for depowdering through vibration may be automated, thereby mitigating challenges associated with manual depowdering operations.
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公开(公告)号：US10759111B2
公开(公告)日：2020-09-01
申请号：US15921903
申请日：2018-03-15
Applicant: Desktop Metal, Inc.
Inventor： Ricardo Fulop , Alexander Nicholas LeGendre , Jonah Samuel Myerberg , Charles Edward Martin , Justin Cumming , Robert Michael Shydo, Jr. , George Hudelson , Jamison Go , Andrew E. Kuklinski , Michael Daniel Santorella
IPC: B29C64/165 , B33Y50/02 , B33Y10/00 , B33Y30/00 , B29C64/393 , B33Y40/00 , B29C64/259 , B29C64/255 , B29C64/176 , B29C64/25
Abstract: A build box associated with a powder bed fabrication system may comprise a housing defining a housing cavity, and a powder print bed disposed within the housing cavity. The powder print bed may be characterized by state information. The build box may further comprise a medium configured to facilitate access to the state information, and a coupling interface for removably engaging the build box with at least one subsystem of the powder bed fabrication system. The state information may comprise one or more state information elements of object identification, object location, current processing state, next subsystem processing step, previous subsystem processing step, object model information, object material composition, and current powder print bed temperature profile. The medium may comprise a memory device coupled with a transceiver. The medium may alternatively comprise an RFID device, or an optically perceivable designator, such as a bar code or QR code.
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公开(公告)号：US20180297278A1
公开(公告)日：2018-10-18
申请号：US15921903
申请日：2018-03-15
Applicant: Desktop Metal, Inc.
Inventor： Ricardo Fulop , Jonah Samuel Myerberg , Charles Edward Martin , Justin Cumming , Robert Michael Shydo, JR. , George Hudelson , Jamison Go , Andrew E. Kuklinski , Michael Daniel Santorella , Alexander Nicholas LeGendre
IPC: B29C64/165 , B29C64/25 , B29C64/393
CPC classification number: B29C64/165 , B29C64/176 , B29C64/25 , B29C64/255 , B29C64/259 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02
Abstract: A build box associated with a powder bed fabrication system may comprise a housing defining a housing cavity, and a powder print bed disposed within the housing cavity. The powder print bed may be characterized by state information. The build box may further comprise a medium configured to facilitate access to the state information, and a coupling interface for removably engaging the build box with at least one subsystem of the powder bed fabrication system. The state information may comprise one or more state information elements of object identification, object location, current processing state, next subsystem processing step, previous subsystem processing step, object model information, object material composition, and current powder print bed temperature profile. The medium may comprise a memory device coupled with a transceiver. The medium may alternatively comprise an RFID device, or an optically perceivable designator, such as a bar code or QR code.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240181503A1
公开(公告)日：2024-06-06
申请号：US18441951
申请日：2024-02-14
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Michael Santorella , Jonah Samuel Myerberg , Matthew McCambridge , Alexander LeGendre , Joseph Gabay , Robert J. Nick , Michael Goldblatt
Abstract: Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from parts by directing gas onto, or near to, the powder. While fragile green parts, such as green parts produced by binder jetting, may be fragile with respect to scraping or impacts, such parts may nonetheless be resistance to damage from directed gas, even if directed at a high pressure. Techniques for depowdering through directed application of gas may be automated, thereby mitigating challenges associated with manual depowdering operations.
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公开(公告)号：US11759859B2
公开(公告)日：2023-09-19
申请号：US16999210
申请日：2020-08-21
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Daniel Sachs , Robert J. Nick , Jonah Samuel Myerberg , Michael Goldblatt
CPC classification number: B22F3/24 , B08B3/045 , B08B3/102 , B08B3/12 , B08B3/14 , B22F10/00 , B33Y40/20 , B22F2003/247
Abstract: Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from additively fabricated parts through liquid immersion of the parts. Motion of the liquid, such as liquid currents, may dislodge or otherwise move powder away from additively fabricated parts to which it is adhered or otherwise proximate to. The liquid may also provide a vehicle to carry away powder from the additively fabricated parts. Removed powder may be filtered or otherwise separated from the liquid to allow recirculation of the liquid to the parts and/or to enable re-use of the powder in subsequent additive fabrication processes. Techniques for depowdering through liquid immersion may be automated, thereby mitigating challenges associated with manual depowdering operations.
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8.发明申请公开(公告)号：US20210046519A1
公开(公告)日：2021-02-18
申请号：US16983138
申请日：2020-08-03
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Michael Santorella , Jonah Samuel Myerberg , Matthew McCambridge , Alexander LeGendre , Joseph Gabay , Robert J. Nick , Michael Goldblatt
Abstract: Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from parts by directing gas onto, or near to, the powder. While fragile green parts, such as green parts produced by binder jetting, may be fragile with respect to scraping or impacts, such parts may nonetheless be resistance to damage from directed gas, even if directed at a high pressure. Techniques for depowdering through directed application of gas may be automated, thereby mitigating challenges associated with manual depowdering operations.
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公开(公告)号：US10543643B2
公开(公告)日：2020-01-28
申请号：US16456123
申请日：2019-06-28
Applicant: Desktop Metal, Inc.
Inventor： Daniel Sachs , Jamison Go , Robert J. Nick
IPC: B29C64/35 , B22F3/00 , B29C64/165 , B33Y10/00 , B22F3/105 , B33Y40/00 , B08B3/12 , B08B5/02 , B08B7/02 , B33Y30/00 , B29C64/357 , B22F3/10
Abstract: According to some aspects, a de-powdering subsystem for an additive fabrication system is described. The de-powdering subsystem may comprise a bath subsystem. The bath subsystem may comprise a reservoir configured to contain a liquid and to accept objects to be de-powdered into the liquid, and an agitation facility configured to cause currents within the liquid. The agitator facility may be at least one of (i) a pump configured to circulate the liquid within the reservoir, (ii) a heating element configured to generate convection currents in the liquid, and (iii) a stirrer driven through a linkage to a motor. The bath subsystem may comprise at least one ultrasonic transducer configured to apply ultrasonic vibrations to the liquid within the reservoir.
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公开(公告)号：US12280431B2
公开(公告)日：2025-04-22
申请号：US18363441
申请日：2023-08-01
Applicant: Desktop Metal, Inc.
Inventor： Jamison Go , Daniel Sachs , Robert J. Nick , Jonah Samuel Myerberg , Michael Goldblatt
Abstract: Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from additively fabricated parts through liquid immersion of the parts. Motion of the liquid, such as liquid currents, may dislodge or otherwise move powder away from additively fabricated parts to which it is adhered or otherwise proximate to. The liquid may also provide a vehicle to carry away powder from the additively fabricated parts. Removed powder may be filtered or otherwise separated from the liquid to allow recirculation of the liquid to the parts and/or to enable re-use of the powder in subsequent additive fabrication processes. Techniques for depowdering through liquid immersion may be automated, thereby mitigating challenges associated with manual depowdering operations.
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