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1. 发明授权

US06399018B1 Powdered material rapid production tooling method and objects produced therefrom 失效
标题翻译：粉末材料快速生产加工方法和由此产生的物体
公开(公告)号：US06399018B1
公开(公告)日：2002-06-04
申请号：US09293706
申请日：1999-04-16
申请人： Randall M. German , Timothy J. Weaver , Julian A. Thomas , Sundar V. Atre , Anthony Griffo
发明人： Randall M. German , Timothy J. Weaver , Julian A. Thomas , Sundar V. Atre , Anthony Griffo
IPC分类号： B22F700
CPC分类号： B22F3/22 , B22F3/26 , B22F2998/00 , C22C1/1015 , C22C1/1036 , Y10T428/12007 , B22F5/007 , B22F1/0014 , B22F2207/01
摘要： Solid objects are made by means of a novel multi-step forming, debinding, sintering and infiltrating process, using a metal-ceramic composition. In this process, the mixture is held for a period of time to degas and settle the powdered material from a liquid binder. The packed geometry is then heated to above the melting temperature of the binder to remove the binder portion of the solid geometry. Upon removal of the binder the binder-free solid geometry is raised to a temperature where the metal pre-sinters together into a three-dimensional rigid matrix with interconnected porosity to form a solid precursor. The porous matrix includes the particulate ceramic material and a first metal, which are at least partially sintered. A molten second metal is then introduced to the fill the porous matrix and form an infiltrated matrix. In addition to speed of production, improvements associated with this method include a solid object having improved thermal conductivity, hardness, wear resistance and reduced shrinkage as compared with the rapid tooling techniques taught in the prior art.
摘要翻译：通过使用金属 - 陶瓷组合物的新型多步骤成形，脱脂，烧结和渗透方法制备固体物体。在该方法中，将混合物保持一段时间以从液体粘合剂中脱气并沉淀粉末状材料。然后将包装的几何形状加热到粘合剂的熔融温度以上以除去固体几何形状的粘合剂部分。在去除粘合剂后，将不含粘合剂的固体几何形状升高到金属预先烧结成具有相互连接的多孔性的三维刚性基质以形成固体前体的温度。多孔基体包括颗粒陶瓷材料和至少部分烧结的第一金属。然后将熔融的第二金属引入填充多孔基质并形成渗透的基质。除了生产速度之外，与现有技术中教导的快速加工技术相比，与该方法相关的改进包括具有改善的导热性，硬度，耐磨性和减小的收缩率的固体物体。

2. 发明授权

US06443967B1 Injection moldable feedstock including diamond particles for abrasive applications 有权
标题翻译：注塑成型原料包括用于磨料应用的金刚石颗粒
公开(公告)号：US06443967B1
公开(公告)日：2002-09-03
申请号：US09848761
申请日：2001-05-03
申请人： Thomas D. Kadavy , Timothy J. Weaver , Kevin Raudebaugh
发明人： Thomas D. Kadavy , Timothy J. Weaver , Kevin Raudebaugh
IPC分类号： A61B1722
CPC分类号： A61B17/320758 , A61B2017/320004
摘要： A feedstock for creating cutting tools comprises a mixture of diamond particles, a binding material and a homogenizing agent that maintains the mixture of the diamond particles and binding material. In one present embodiment of the invention, the feedstock comprises diamond particles mixed with a binding agent of a brass powder and a wax or plastic homogenizing agent. The feedstock of the present invention is useful in making many types of abrasive cutting tools. One such cutting tool is an atherectomy burr for use in removing occlusions from a patient's blood vessel. A cutting tool made of the feedstock of the present invention has improved thermal conductivity compared with conventional atherectomy burrs.
摘要翻译：用于产生切削工具的原料包括金刚石颗粒，粘合材料和维持金刚石颗粒和粘合材料的混合物的均化剂的混合物。在本发明的一个现有实施方案中，原料包含与黄铜粉末和蜡或塑料均化剂的粘合剂混合的金刚石颗粒。本发明的原料可用于制造许多类型的研磨切削工具。一种这样的切割工具是用于去除患者血管中的闭塞的动脉粥样硬化切除术毛刺。由本发明的原料制成的切削工具与常规的粥样斑块切除术毛发相比具有改善的导热性。

3. 发明授权

US06641776B1 Method for preparing radiopaque surgical implement 有权
标题翻译：不透射线手术器械的制作方法
公开(公告)号：US06641776B1
公开(公告)日：2003-11-04
申请号：US09713064
申请日：2000-11-15
申请人： Timothy J. Weaver , Dion Mraz
发明人： Timothy J. Weaver , Dion Mraz
IPC分类号： C22C3200
CPC分类号： A61L29/18 , A61L31/18
摘要： X-ray imageable articles, for instance surgical implements or parts therefore which are used in minimally invasive surgical procedures, may be prepared by a process including the steps of: (a) preparing a mixture composition comprising: i) radiolucent particulate material selected from ceramic materials, metallurgic materials, and combinations thereof and having a particulate size of no more than 40 microns, ii) radiopaque particulate material selected from ceramic materials, metallurgic materials, and combinations thereof and having a particulate size of no more than 40 microns, and (iii) at least one polymeric binder material; (b) injection molding the mixture composition into a preform; (c) optionally removing the binder material from the preform; and (d) sintering the preform.
摘要翻译： X射线可成像制品，例如用于微创外科手术的外科器械或部件，可以通过包括以下步骤的方法制备：（a）制备混合物组合物，其包含：i）选自陶瓷材料，冶金材料及其组合，并且具有不超过40微米的颗粒尺寸，ii）选自陶瓷材料，冶金材料及其组合的不透射色颗粒材料，并且具有不超过40微米的颗粒尺寸，和（ iii）至少一种聚合物粘合剂材料;（b）将所述混合物组合物注塑成预成型件;（c）任选地从预成型件中除去粘合剂材料; 和（d）烧结预成型体。

4. 发明授权

US5518177A Compressed air hydrant heater device 失效
标题翻译：压缩空气消火栓加热装置
公开(公告)号：US5518177A
公开(公告)日：1996-05-21
申请号：US257196
申请日：1994-06-09
申请人： Timothy J. Weaver , David Riley , William B. Smith, Jr. , Donald Cutler
发明人： Timothy J. Weaver , David Riley , William B. Smith, Jr. , Donald Cutler
IPC分类号： F25C3/04 , E01H4/00
CPC分类号： F25C3/04 , F25C2303/046 , F25C2303/0481
摘要： An improved snow making machine (10) is described, comprising a housing (14) and a nucleator (18) disposed inside the housing to mix compressed air with pressurized water to generate a wide angle round spray (24) pattern of ice crystal nuclei. An air hydrant heater device (12) is connected in the compressed air line (74) to heat the compressed air so that humidity present in the air will not freeze and render the nucleator inoperative at relatively low operating temperatures. A spray nozzle manifold (24) is mounted annularly around the housing discharge outlet (14A) and supports a plurality of water nozzles (28) that inject a cold water shower into the air flow, which water shower commingles with the ice crystal nuclei to thereby form ice granules as the two travel through the cold ambient air. The snow making machine can be mounted on a tower like support structure that provides for adjusting the discharge direction and tilt angle of the discharge outlet from a ground level elevation.
摘要翻译：描述了一种改进的制雪机（10），其包括设置在壳体内部的壳体（14）和成核器（18），以将压缩空气与加压水混合以产生广角圆形喷雾（24）图案的冰晶核。空气消火栓加热装置（12）连接在压缩空气管线（74）中以加热压缩空气，使得存在于空气中的湿气不会冷冻，并使成核器在相对较低的工作温度下不起作用。喷嘴集管（24）围绕壳体排出口（14A）环形地安装，并且支撑多个水冷喷嘴（28），该喷嘴将冷水淋浴喷射到空气流中，该水淋浴与冰晶核结合，由此形成冰颗粒，因为两者通过冷的环境空气行进。制雪机可以安装在塔状的支撑结构上，该结构提供从地面高度调节排放方向和排出口的倾斜角度。

5. 发明授权

US5400966A Machine for making artificial snow and method 失效
标题翻译：制造人造雪机及方法
公开(公告)号：US5400966A
公开(公告)日：1995-03-28
申请号：US102555
申请日：1993-08-05
申请人： Timothy J. Weaver , David B. Riley , William B. Smith, Jr. , Donald Cutler
发明人： Timothy J. Weaver , David B. Riley , William B. Smith, Jr. , Donald Cutler
IPC分类号： F25C3/04
CPC分类号： F25C3/04 , F25C2303/046 , F25C2303/048
摘要： An improved tower mounted snow making machine (10) that provides for covering a ski slope (48) with artificial snow (50) is described. The snow making machine comprises a housing (12) having a frusto-conical section (84) that provides for maintaining the generated velocity of a high-volume air flow out through a discharge outlet (12A) and with a nucleator (16) disposed inside the housing to generate a wide angle round spray pattern of ice crystal nuclei (21) that diverge towards the discharge outlet without impinging on the inside of the housing. A spray nozzle manifold (22) is mounted annularly around the discharge outlet and supports a plurality of water nozzles comprising primary water nozzles (116A to 116F) that are automatically actuated when the machine is turned on to inject a primary water shower into the air flow, which water shower commingles with the ice crystal nuclei to thereby form ice granules as the two travel through the cold ambient air, and secondary water nozzles (118A to 118K) that are selectively actuatable to augment the primary water shower. The snow making machine can be mounted on a tower like support structure that provides for adjusting the discharge direction and tilt angle of the discharge outlet from a ground level elevation.
摘要翻译：描述了一种用于覆盖具有人造雪（50）的滑雪坡（48）的改进的塔式制雪机（10）。制雪机包括具有截头圆锥形部分（84）的壳体（12），其提供通过排放出口（12A）保持大体积空气流的产生速度，以及设置在内部的成核器（16）所述壳体产生朝向所述排出口分叉的冰晶核（21）的广角圆形喷雾图案，而不会撞击到所述壳体的内部。喷嘴歧管（22）围绕放电出口环形地安装，并且支撑包括初级水嘴（116A至116F）的多个水喷嘴，所述主喷嘴歧管在机器打开时自动启动以将初级水淋浴注入空气流，这些水淋浴与冰晶核结合，从而当两个行进通过冷环境空气时形成冰颗粒，以及可选择性地致动以增加初级水淋浴的二次水喷嘴（118A至118K）。制雪机可以安装在塔状的支撑结构上，该结构提供从地面高度调节排放方向和排出口的倾斜角度。

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