公开(公告)号：CA1337955C

公开(公告)日：1996-01-23

申请号：CA612990

申请日：1989-09-25

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 ,  B29C64/124 ,  B29C41/12 ,  B29C67/00 ,  B29K105/24 ,  G01F23/292 ,  G01F23/36 ,  G05D9/12 ,  B29C39/42

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.

公开(公告)号：AT130793T

公开(公告)日：1995-12-15

申请号：AT89309762

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 ,  SMALLEY DENNIS R ,  COHEN ADAM L

IPC: B29C35/08 ,  B29C41/12 ,  B29C67/00 ,  B29K105/24 ,  G01F23/292 ,  G01F23/36 ,  G05D9/12 ,  B29C39/42

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.

公开(公告)号：HK1009595A1

公开(公告)日：1999-06-04

申请号：HK98110328

申请日：1998-08-31

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 ,  B29C ,  G01F

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.

公开(公告)号：HK1002908A1

公开(公告)日：1998-09-25

申请号：HK98100602

申请日：1998-01-22

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 ,  SMALLEY DENNIS R ,  COHEN ADAM L

IPC: B29C35/08 ,  B29C41/12 ,  B29C67/00 ,  B29K105/24 ,  G01F23/292 ,  G01F23/36 ,  G05D9/12 ,  B29C

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.

公开(公告)号：SG49722A1

公开(公告)日：1998-06-15

申请号：SG1996004356

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

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.