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1. 发明授权

US07118206B1 Gas bubble removal from ink-jet dispensing devices 有权
标题翻译：从喷墨分配装置去除气泡
公开(公告)号：US07118206B1
公开(公告)日：2006-10-10
申请号：US10804310
申请日：2004-03-19
申请人： John S. Stockwell , Raymond Mathew Soliz , Stephen A. Ruatta , Jon Jody Fong
发明人： John S. Stockwell , Raymond Mathew Soliz , Stephen A. Ruatta , Jon Jody Fong
IPC分类号： B41J2/19 , B41J2/175
CPC分类号： B41J2/17509 , B33Y30/00 , B33Y40/00 , B33Y50/02 , B41J2/19
摘要： A method and apparatus for effectively removing gas bubbles in systems fed to ink-jetting devices. The system removes both small and large-scale gas bubbles from systems that feed materials to ink jet print heads.
摘要翻译：一种用于在馈送到喷墨装置的系统中有效地去除气泡的方法和装置。该系统从将材料供给到喷墨打印头的系统中除去小型和大型气泡。

2. 发明授权

US07285237B2 Post processing three-dimensional objects formed by selective deposition modeling 有权
标题翻译：通过选择性沉积建模形成后处理三维物体
公开(公告)号：US07285237B2
公开(公告)日：2007-10-23
申请号：US10815510
申请日：2004-04-01
申请人： Kenneth J. Newell , Stephen A. Ruatta , John S. Stockwell
发明人： Kenneth J. Newell , Stephen A. Ruatta , John S. Stockwell
IPC分类号： B29C71/00 , B29C71/02
CPC分类号： B29C64/40 , B29C64/20 , B33Y40/00
摘要： A method for removing supports from a three-dimensional objected formed by selective deposition modeling. The three-dimensional object is formed from a curable phase change material and the supports are formed from a non-curable phase change material. The curable phase change material contains between about 5% to about 25% of a non-reactive wax in order to achieve the desired phase change characteristics of the material. When removing the supports with heat, discoloration undesirably occurs in the three-dimensional object as the non-reactive wax migrates within the object. The method prevents wax migration by cooling the object slowly past the freezing point of the build material such that a temperature differential no greater than about 5° C. is present within the object. With the preferred build material having a freezing point of about 49.5° C., this is achieved by lowering the temperature between about 62° C. to about 52° C. over a period of between about 5 to about 10 minutes so that the temperature of the regions of the object remain substantially equal as the freezing point is crossed during cooling.
摘要翻译：一种通过选择性沉积建模形成的三维物体去除载体的方法。三维物体由可固化相变材料形成，并且载体由不可固化的相变材料形成。可固化相变材料含有约5％至约25％的非反应性蜡，以达到所需材料的相变特性。当用热量去除载体时，随着非反应性蜡在物体内迁移，三维物体中出现不希望的变色。该方法通过将物体缓慢地冷却到建筑材料的凝固点来防止蜡迁移，使得物体内存在不大于约5℃的温度差。使用优选的构建材料具有约49.5℃的凝固点，这是通过在约5-约10分钟的时间内将温度降低至约62℃至约52℃来实现的，使得温度当冷却期间凝固点交叉时，物体的区域保持基本相等。

3. 发明授权

US06752948B2 Post processing three-dimensional objects formed by selective deposition modeling 有权
公开(公告)号：US06752948B2
公开(公告)日：2004-06-22
申请号：US09970727
申请日：2001-10-03
申请人： Kenneth J. Newell , Stephen A. Ruatta , John S. Stockwell
发明人： Kenneth J. Newell , Stephen A. Ruatta , John S. Stockwell
IPC分类号： B29C7100
CPC分类号： B29C64/40 , B29C64/20 , B33Y40/00
摘要： A method for removing supports from a three-dimensional objected formed by selective deposition modeling. The three-dimensional object is formed from a curable phase change material and the supports are formed from a non-curable phase change material. The curable phase change material contains between about 5% to about 25% of a non-reactive wax in order to achieve the desired phase change characteristics of the material. When removing the supports with heat, discoloration undesirably occurs in the three-dimensional object as the non-reactive wax migrates within the object. The method prevents wax migration by cooling the object slowly past the freezing point of the build material such that a temperature differential no greater than about 5° C. is present within the object. With the preferred build material having a freezing point of about 49.5° C., this is achieved by lowering the temperature between about 62° C. to about 52° C. over a period of between about 5 to about 10 minutes so that the temperature of the regions of the object remain substantially equal as the freezing point is crossed during cooling.

4. 发明授权

US07399796B2 Phase change support material composition 有权
标题翻译：相变支撑材料组成
公开(公告)号：US07399796B2
公开(公告)日：2008-07-15
申请号：US10870610
申请日：2004-06-17
申请人： Pingyong Xu , Stephen A. Ruatta , Kris Alan Schmidt , Vu A. Doan
发明人： Pingyong Xu , Stephen A. Ruatta , Kris Alan Schmidt , Vu A. Doan
IPC分类号： C09D11/00
CPC分类号： C09D11/00 , B29C64/112 , B29C64/40 , B33Y10/00 , B33Y70/00 , C09D11/101 , C09D11/34 , C09D175/16 , C08L91/06
摘要： A jettable non-curable support material composition useful for three-dimensional ink jet printing comprising at least one fatty alcohol and at least one abietic rosin ester alcohol, wherein the support material has a melting point between about 50° C. to about 65° C. and a freezing point between about 45° C. to about 55° C.
摘要翻译：一种可用于三维喷墨印刷的可喷射的不可固化支撑材料组合物，其包含至少一种脂肪醇和至少一种松香酯醇，其中所述载体材料具有约50℃至约65℃的熔点并且在约45℃至约55℃之间的凝固点

5. 发明授权

US07176253B2 Phase change support material composition 有权
标题翻译：相变支撑材料组成
公开(公告)号：US07176253B2
公开(公告)日：2007-02-13
申请号：US10186447
申请日：2002-06-28
申请人： Pingyong Xu , Stephen A. Ruatta , Kris Alan Schmidt , Vu A. Doan
发明人： Pingyong Xu , Stephen A. Ruatta , Kris Alan Schmidt , Vu A. Doan
IPC分类号： C08L93/04 , C08K5/05
CPC分类号： C08K5/05 , B29C64/106 , B29C64/112 , B29C64/40 , B33Y10/00 , B33Y70/00 , C08K5/01 , C09D11/101 , C09D11/34 , C09D175/16 , C08L91/06
摘要： A jettable non-curable support material composition useful for three-dimensional ink jet printing comprising at least one fatty alcohol and at least one abietic rosin ester alcohol, wherein the support material has a melting point between about 50° C. to about 65° C. and a freezing point between about 45° C. to about 55° C.
摘要翻译：一种可用于三维喷墨印刷的可喷射的不可固化支撑材料组合物，其包含至少一种脂肪醇和至少一种松香酯醇，其中所述载体材料具有约50℃至约65℃的熔点并且在约45℃至约55℃之间的凝固点

6. 发明授权

US07569174B2 Controlled densification of fusible powders in laser sintering 有权
标题翻译：激光烧结中易熔粉末的控制致密化
公开(公告)号：US07569174B2
公开(公告)日：2009-08-04
申请号：US11005785
申请日：2004-12-07
申请人： Stephen A. Ruatta , Khalil M. Moussa
发明人： Stephen A. Ruatta , Khalil M. Moussa
IPC分类号： B29C35/08 , B29C41/02
CPC分类号： C23C26/02 , B29C64/153 , B33Y10/00 , B33Y70/00 , C23C24/10
摘要： The invention relates to a method producing parts using laser sintering wherein a fusible powder is exposed to a plurality of laser scans at controlled energy levels and for time periods to melt and densify the powder and in the substantial absence of particle bonding outside the fusion boundary. Strength is improved up to 100% compared to previous methods. An example includes a relatively high energy initial scan to melt the powder followed by lower energy scans controlled to densify the melt and separated in time to dissipate heat to the surrounding part cake. The rate and extent to which the powder particles are fused together can be controlled so that each successive scan can be used to fuse the particles together in discreet incremental steps. As a result, the final dimensions of the part and its density and mechanical properties can be improved compared to conventional methods and part growth avoided.
摘要翻译：本发明涉及一种使用激光烧结制造零件的方法，其中熔融粉末以受控的能级暴露于多次激光扫描，并且在熔融和致密化粉末的时间段内，并且在融合边界之外基本上不存在颗粒粘合。与先前的方法相比，强度提高了100％。一个实例包括相对较高的能量初始扫描，以熔化粉末，然后控制较低能量扫描以致熔化熔体并及时分离以将热量散发到周围的部分饼。可以控制粉末颗粒熔合在一起的速度和程度，使得每个连续的扫描可以用于以谨慎的增量步骤将颗粒熔合在一起。结果，与常规方法相比，部件的最终尺寸及其密度和机械性能可以得到改善，并且避免了部分生长。

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