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US Patent 11759861 Additive manufacturing build units with process gas inertization systems

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11759861
Patent Inventor Names
Eric Edward Halla
Adam Garret Susong
Shashwat Swami Jaiswal
Kishore Ramakrishnan
Ramakrishna Venkata Mallina
Mohammed Mounir Shalaby
Peter Pontiller-Schymura
Date of Patent
September 19, 2023
Patent Application Number
17232467
Date Filed
April 16, 2021
Patent Citations
‌
US Patent 8185229 Apparatus and methods for handling materials in a 3-D printer
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US Patent 8288681 Laser processing apparatus and laser processing method as well as debris extraction mechanism and debris extraction method
‌
US Patent 8876277 Vacuum pulldown of a print media in a printing system
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US Patent 9333995 Crosswind airflow countering thrust assembly and transport vehicle formed therewith
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US Patent 9415417 Scattered powder cleaning device capable of removing scattered powder from an internal space
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US Patent 9669583 Selective laser solidification apparatus and method
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US Patent 9931789 Method and apparatus for producing a large three-dimensional work piece
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US Patent 9956612 Additive manufacturing using a mobile scan area
...
Patent Primary Examiner
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Nicholas A Wang
CPC Code
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B22F 10/322
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B29C 64/371
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B22F 12/70
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B22F 2201/10
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B22F 10/77
Patent abstract

A build unit for additively manufacturing three-dimensional objects may include an energy beam system having one or more irradiation devices respectively configured to direct one or more energy beams onto a region of a powder bed, and an inertization system including an irradiation chamber defining an irradiation plenum, one or more supply manifolds, and a return manifold. The one or more supply manifolds may include a downflow manifold configured to provide a downward flow of a process gas through at least a portion of the irradiation plenum defined by the irradiation chamber, and/or a crossflow manifold configured to provide a lateral flow of the process gas through at least a portion of the irradiation plenum defined by the irradiation chamber. The return manifold may evacuate or otherwise remove process gas from the irradiation plenum defined by the irradiation chamber.

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