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公开(公告)号：DE68929292D1
公开(公告)日：2001-05-23
申请号：DE68929292
申请日：1989-09-26
Applicant: 3D SYSTEMS INC
Inventor： ALMQUIST THOMAS A , HULL CHARLES W , MODREK BORZO , SERKUCZEWSKI ANDRZEJ R , JACOBS PAUL F , LEWIS CHARLES W , LEWIS MARK A , LIRAN ABRAHAM
IPC: B29C35/08 , B29C41/12 , B29C67/00 , B29K105/24 , G01F23/292 , G01F23/36 , G05D9/12 , G01F23/28
Abstract: A stereolithography method and system for producing three-dimensional plastic objects by forming a plurality of thin layers of partially cured plastic material which are thin cross sections of the desired object. A layer of polymerizable resin is applied to a support surface and the excess is struck off, such as with a doctor blade, to form a smoothed layer. The smoothed layer is subjected to radiation in a predetermined pattern to form the cross-sectional layer into the desired shape. A plurality of layers are subsequently applied, leveled, then cured in the same manner to produce the desired three-dimensional object. Apparatus for measuring the level of the surface of a fluid is also provided. Variations in the level of fluid will be detected and may be used to drive a pump, diaphragm, or plunger in order to maintain the level of the fluid.
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公开(公告)号：AT200644T
公开(公告)日：2001-05-15
申请号：AT95107870
申请日：1989-09-26
Applicant: 3D SYSTEMS INC
Inventor： ALMQUIST THOMAS A , HULL CHARLES W , MODREK BORZO , SERKUCZEWSKI ANDRZEJ R , JACOBS PAUL F , LEWIS CHARLES W , LEWIS MARK A , LIRAN ABRAHAM
IPC: B29C35/08 , B29C41/12 , B29C67/00 , B29K105/24 , G01F23/292 , G01F23/36 , G05D9/12 , G01F23/28
Abstract: A stereolithography method and system for producing three-dimensional plastic objects by forming a plurality of thin layers of partially cured plastic material which are thin cross sections of the desired object. A layer of polymerizable resin is applied to a support surface and the excess is struck off, such as with a doctor blade, to form a smoothed layer. The smoothed layer is subjected to radiation in a predetermined pattern to form the cross-sectional layer into the desired shape. A plurality of layers are subsequently applied, leveled, then cured in the same manner to produce the desired three-dimensional object. Apparatus for measuring the level of the surface of a fluid is also provided. Variations in the level of fluid will be detected and may be used to drive a pump, diaphragm, or plunger in order to maintain the level of the fluid.
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公开(公告)号：BR9607005A
公开(公告)日：1997-10-28
申请号：BR9607005
申请日：1996-01-29
Applicant: 3D SYSTEMS INC
Inventor： ALMQUIST THOMAS A , HULL CHARLES W , THAYER JEFFREY S , LEYDEN RICHARD N , JACOBS PAUL F , SMALLEY DENNIS R
Abstract: Methods and apparatus for use in building three-dimensional objects on substantially a cross-sectional basis including methods and apparatus for forming successive layers using counter-rotating rollers, ink jet recoaters, spinning members which sling material, applicator bars that dispense material via a meniscus and/or independently dispensed streams, and also including methods and apparatus to determine a preferred region over which to form a layer and to check for building errors.
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公开(公告)号：AU2365595A
公开(公告)日：1995-11-16
申请号：AU2365595
申请日：1995-04-25
Applicant: 3D SYSTEMS INC
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公开(公告)号：DE3587656T2
公开(公告)日：1994-04-28
申请号：DE3587656
申请日：1985-08-06
Applicant: 3D SYSTEMS INC
Inventor： HULL CHARLES W
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Patent Agency Ranking
公开(公告)号：AT209562T
公开(公告)日：2001-12-15
申请号：AT95111925
申请日：1989-04-17
Applicant: 3D SYSTEMS INC
Inventor： HULL CHARLES W , LEWIS CHARLES W
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17.发明专利
公开(公告)号：AU3194899A
公开(公告)日：1999-10-18
申请号：AU3194899
申请日：1999-03-26
Applicant: 3D SYSTEMS INC
Inventor： HULL CHARLES W , LOCKARD MICHAEL S , ALMQUIST THOMAS A
Abstract: Tool having a molding surface is formed from a flowable material (e.g., powder material) wherein the shape of molding surface is formed from a molding process using a master pattern having a surface with a shape substantially the same as the shape of the molding surface to be formed. The tool has at least one thermal control element located within it and spaced from the molding surface where a component used in forming the thermal control element is located within the flowable material prior to solidifying the material. The powder material is preferably a mixture of metals. The thermal control elements include fluid flow paths, heating elements, temperature sensors, and the like.
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公开(公告)号：BR9610750A
公开(公告)日：1999-07-13
申请号：BR9610750
申请日：1996-09-27
Applicant: 3D SYSTEMS INC
Inventor： LEYDEN RICHARD N , THAYER JEFFREY S , BEDAL BRYAN J L , ALMQUIST THOMAS A , HULL CHARLES W , EARL JOCELYN M , KEREKES THOMAS A , SMALLEY DENNIS R , MEROT CHRISTIAN M , FEDCHENKO RICHARD P , LOCKARD MICHAEL S , PANG THOMAS H , THAT DINH TON
Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.
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公开(公告)号：HK1006347A1
公开(公告)日：1999-02-19
申请号：HK98105428
申请日：1998-06-16
Applicant: 3D SYSTEMS INC
Inventor： HULL CHARLES W
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公开(公告)号：DE3588184D1
公开(公告)日：1998-05-28
申请号：DE3588184
申请日：1985-08-06
Applicant: 3D SYSTEMS INC
Inventor： HULL CHARLES W
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