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1. 发明授权

US5599406A Gold-colored copper-aluminum-indium alloy 失效
标题翻译：金色铜 - 铝 - 铟合金
公开(公告)号：US5599406A
公开(公告)日：1997-02-04
申请号：US455
申请日：1993-01-04
申请人： Arun Prasad , Michael Weston , Grant Bauer
发明人： Arun Prasad , Michael Weston , Grant Bauer
IPC分类号： C22C9/01 , C22C9/00
CPC分类号： C22C9/01
摘要： A copper-aluminum-indium alloy approaches gold in spectral appearance, tarnish resistance and mechanical durability, by virtue of a specific formulation and microstructure. The formulation consists of the following essential ingredients by total weight, in a copper matrix: from 7 to 12% of aluminum, from 5 to 11% of indium, and no more than 3% of a essentially non-ferromagnetic remainder. The required microstructure is in the form an essentially ternary alloy having a quenched single phase, an average grain size of no more than 100 .mu.m in diameter. Preferably, the above specified 3% remainder includes: a modifier selected from the class consisting of boron, silicon, lithium, magnesium, zinc and phosphorous; a strengthener selected from the class consisting of silver, gold, palladium, platinum, iridium, ruthenium and rhodium; and a system stabilizer, preferably selected from the class consisting of yttrium, cerium, lanthanum, hafnium, zirconium, chromium, titanium, nickel, iron and manganese.
摘要翻译：通过具体的配方和微观结构，铜 - 铝 - 铟合金在光谱外观，抗光泽和机械耐久性方面接近金。该配方由以下重要成分组成：铜基质：7-12％的铝，5-11％的铟和不超过3％的基本上非铁磁的剩余部分。所需的微观结构为具有淬火单相的基本上三元合金的形式，平均粒径不超过100μm。优选地，上述指定的3％余量包括：选自由硼，硅，锂，镁，锌和磷组成的类别的改性剂; 选自银，金，钯，铂，铱，钌和铑的加强剂; 和优选选自钇，铈，镧，铪，锆，铬，钛，镍，铁和锰的体系稳定剂。

2. 发明申请

US20180110603A1 PHYSICAL AND VIRTUAL SYSTEMS FOR RECORDING AND SIMULATING DENTAL MOTION HAVING 3D CURVILINEAR GUIDED PATHWAYS AND TIMING CONTROLS 审中-公开
公开(公告)号：US20180110603A1
公开(公告)日：2018-04-26
申请号：US15675627
申请日：2017-08-11
申请人： John P. Stipek, SR. , John P. Stipek, JR. , Arun Prasad
发明人： John P. Stipek, SR. , John P. Stipek, JR. , Arun Prasad
IPC分类号： A61C19/045 , A61C11/02 , G09B23/28 , A61C11/08 , A61C9/00 , A61C13/00 , A61C13/34
CPC分类号： A61C19/045 , A61C9/0046 , A61C11/025 , A61C11/06 , A61C11/08 , A61C11/082 , A61C13/0004 , A61C13/34 , G09B23/283
摘要： One embodiment of the apparatus and method comprises a physical recording instrument (2000) for forming a right and a left side engraved analog (150), the analogs (150) being subsequently attached to a physical articulating instrument (3000), the analogs (150) with timing controls then serving as guides for simulating the motion of mounted patient dental models (142). Another embodiment comprises a digital recording system (4000) for generating the right and left side virtual engraved analogs (150), the analogs (150) being subsequently milled or digitally formed in a CNC rapid prototyping machine, the analogs (150) then being attached to the physical articulating instrument (3000), the analogs (150) with the timing controls serving as guides for simulating the motion. Some of the foregoing embodiments facilitate production of technologist fabricated dental restorative and orthodontic treatments. Another embodiment comprises the digital recording system (4000) for generating the right and left side virtual engraved analogs (150) and a virtual articulating instrument (5000) for virtual simulating of mandibular jaw motion. Some of these digital workflow embodiments facilitate production of milled or digitally fabricated dental restorative and orthodontic treatments.

3. 发明授权

US07488175B2 Fiber reinforced composite post 有权
公开(公告)号：US07488175B2
公开(公告)日：2009-02-10
申请号：US11006219
申请日：2004-12-06
申请人： Ajit Karmaker , Arun Prasad
发明人： Ajit Karmaker , Arun Prasad
IPC分类号： A61C5/08
CPC分类号： A61C13/30 , A61C5/35
摘要： A dental post comprising a rod fabricated of fiber-reinforced composite material. The rod comprises a plurality of frustoconical sections arranged coaxially along the longitudinal axis of the rod. Preferably the rod has consistent width along the longitudinal axis wherein the frustoconical sections each have the same tapered width and same length. The number of frustoconical units per rod can vary. The frustoconical sections may vary in shape. Moreover, the rod may include a channel therein extending along the longitudinal axis thereof. The rod may also include one or more grooves extending along the surface thereof.

4. 发明申请

US20080108015A1 METHOD OF MANUFACTURING DENTAL RESTORATIONS 审中-公开
标题翻译：制造牙科修复方法
公开(公告)号：US20080108015A1
公开(公告)日：2008-05-08
申请号：US11926591
申请日：2007-11-28
申请人： AJIT KARMAKER , Arun Prasad
发明人： AJIT KARMAKER , Arun Prasad
IPC分类号： A61C13/09
CPC分类号： A61C13/30 , A61C5/50
摘要： Dental restorations are manufactured herein wherein a veneer is applied to a dental substructure and the adherence strength of the veneer to the dental substructure is very high. The veneer is adhered to the dental substructure by applying one or more corona of plasma treatments to the surface of the dental substructure and thereafter applying the veneer to tie dental substructure. The surface of the dental substructure is modified by the corona or plasma process to create a highly adherent surface for the application of the veneer thereto.
摘要翻译：牙科修复体在本文中制造，其中将单板应用于牙齿底部结构，并且单板对牙齿底部结构的粘附强度非常高。通过将一个或多个等离子体处理电晕施加到牙齿底部结构的表面上，然后施加单板来粘合牙齿底部结构，将该贴面粘附到牙齿底部结构上。通过电晕或等离子体处理来改变牙齿底部结构的表面以产生用于将薄板应用于其中的高粘附表面。

5. 发明申请

US20050127544A1 High-strength dental restorations 审中-公开
标题翻译：高强度牙科修复体
公开(公告)号：US20050127544A1
公开(公告)日：2005-06-16
申请号：US10961307
申请日：2004-10-08
申请人： Dmitri Brodkin , Carlino Panzera , Paul Panzera , Arun Prasad , Ajit Karmaker , Elie Zammarieh , Gregg Daskalon , Martin Schulman
发明人： Dmitri Brodkin , Carlino Panzera , Paul Panzera , Arun Prasad , Ajit Karmaker , Elie Zammarieh , Gregg Daskalon , Martin Schulman
IPC分类号： A01N1/00 , A61K6/06 , C03B19/06 , C03B32/02 , C03C10/00
CPC分类号： C03C3/112 , A61C13/26 , A61K6/0073 , A61K6/0215 , A61K6/0235 , A61K6/024 , A61K6/025 , A61K6/0273 , C03B19/06 , C03B32/02 , C03C3/097 , C03C3/118 , C03C4/0021 , C03C10/0027 , A61K6/083 , C08L33/02
摘要： Lithium disilicate based glass-ceramics contain high strength ceramic components for use in the manufacture of dental products. The glass-ceramics have good pressability, i.e., the ability to be formed into dental products by heat-pressing using commercially available equipment. The strength of the dental articles is increased with the inclusion of the high strength ceramic components.
摘要翻译：基于硅酸锂的玻璃陶瓷含有用于制造牙科产品的高强度陶瓷组件。玻璃陶瓷具有良好的压制性，即通过使用市售设备进行热压而形成牙科产品的能力。牙科制品的强度随着高强度陶瓷组分的增加而增加。

6. 发明申请

US20050123881A1 Fiber reinforced composite post 有权
标题翻译：纤维增强复合桩
公开(公告)号：US20050123881A1
公开(公告)日：2005-06-09
申请号：US11006219
申请日：2004-12-06
申请人： Ajit Karmaker , Arun Prasad
发明人： Ajit Karmaker , Arun Prasad
IPC分类号： A61C5/00 , A61C13/30 , A61C5/08
CPC分类号： A61C13/30 , A61C5/35
摘要： A dental post comprising a rod fabricated of fiber-reinforced composite material. The rod comprises a plurality of frustoconical sections arranged coaxially along the longitudinal axis of the rod. Preferably the rod has consistent width along the longitudinal axis wherein the frustoconical sections each have the same tapered width and same length. The number of frustoconical units per rod can vary. The frustoconical sections may vary in shape. Moreover, the rod may include a channel therein extending along the longitudinal axis thereof. The rod may also include one or more grooves extending along the surface thereof.
摘要翻译：一种牙柱，包括由纤维增强复合材料制成的杆。杆包括沿着杆的纵向轴线同轴布置的多个截头圆锥形部分。优选地，杆沿着纵向轴线具有一致的宽度，其中截头圆锥形部分各自具有相同的锥形宽度和相同的长度。每个棒的截头圆锥体单位的数量可以变化。截头圆锥体部分的形状可能不同。此外，杆可以包括沿其纵向轴线延伸的通道。杆还可以包括沿着其表面延伸的一个或多个凹槽。

7. 发明授权

US06846181B2 Prefabricated components for dental appliances 有权
标题翻译：牙科器具预制部件
公开(公告)号：US06846181B2
公开(公告)日：2005-01-25
申请号：US10029782
申请日：2001-10-26
申请人： Ajit Karmaker , Martin L. Schulman , Arun Prasad
发明人： Ajit Karmaker , Martin L. Schulman , Arun Prasad
IPC分类号： A61C13/00 , A61C13/12
CPC分类号： A61C13/0003 , A61C5/007 , A61C5/30 , A61C13/0022
摘要： Ready-to-use preshaped, prefabricated cured structural components are prepared in a variety of shapes and sizes to be used in the fabrication of dental appliances. Preferably the structural components are fabricated of a fiber-reinforced composite material or a particulate-filled composite material comprising fibers or particulate filler impregnated with a polymeric matrix. The polymeric matrix is partially or fully cured to the point of sufficient hardness to provide a ready-to-use structural component for use in the fabrication of dental appliances such as orthodontic retainers, bridges, space maintainers, tooth replacement appliances, splints, crowns, partial crowns, dentures, posts, teeth, jackets, inlays, onlays, facings, veneers, facets, implants, abutments, cylinders, and connectors.
摘要翻译：准备使用的预成型的预制固化结构部件制备成各种形状和尺寸以用于牙科器具的制造。优选地，结构部件由纤维增强复合材料或填充有聚合物基质的纤维或颗粒填料的颗粒填充复合材料制成。聚合物基质部分或完全固化到足够的硬度点，以提供用于制造牙科器具的即用型结构组分，例如正畸保持器，桥梁，空间维持器，牙齿置换器具，夹板，牙冠，部分冠，义齿，柱，牙齿，夹克，镶嵌，镶嵌，面板，贴面，刻面，植入物，基台，圆柱体和连接器。

8. 发明授权

US06381989B1 Heat treated fibers for reinforced dental restorations and method of manufacture thereof 有权
标题翻译：用于加强牙科修复体的热处理纤维及其制造方法
公开(公告)号：US06381989B1
公开(公告)日：2002-05-07
申请号：US09642727
申请日：2000-08-21
申请人： Ajit Karmaker , Arun Prasad
发明人： Ajit Karmaker , Arun Prasad
IPC分类号： C03B3707
CPC分类号： A61K6/083 , A61C5/00 , A61C5/007 , A61K6/08 , C03C25/002
摘要： A method for processing a glass fiber material, wherein the glass fiber material has been heat treated at a temperature less than or equal to the annealing temperature of the glass for a length of time effective to prevent separation and fraying of the edges of the material upon cutting.
摘要翻译：一种处理玻璃纤维材料的方法，其中玻璃纤维材料已经在小于或等于玻璃退火温度的温度下热处理一段时间，以有效地防止材料边缘的分离和磨损，切割。

9. 发明授权

US5180427A Fillers for investment and refractory die materials 失效
$Fillers for investment and refractory die materials$
标题翻译：用于投资和耐火材料的填料
公开(公告)号：US5180427A
公开(公告)日：1993-01-19
申请号：US827150
申请日：1992-01-28
申请人： Arun Prasad , Carlino Panzera
发明人： Arun Prasad , Carlino Panzera
IPC分类号： B22C1/18
CPC分类号： B22C1/185
摘要： Phosphate-bonded investments and refractory die materials are provided upon which dental porcelains and/or alloy powders can be sintered. Inorganic fillers are mixed with appropriate binders to produce mold materials which exhibit very high thermal expansion properties without exhibiting any large or sudden change in their thermal expansion verse temperature profile. Investments and refractory die materials having thermal expansions of greater than 0.80% in the range of 25.degree.-500.degree. C. are provided by incorporating leucite (KAlSi.sub.2 O.sub.6) or calcium difluoride (CaF.sub.2), or both, as fillers for investments and refractory die materials.
摘要翻译：提供磷酸盐粘合投资和耐火模具材料，其上可以烧结牙瓷和/或合金粉末。将无机填料与合适的粘合剂混合以产生显示出非常高的热膨胀性能的模具材料，而不会在其热膨胀度温度分布中出现任何大的或突然的变化。通过掺入白云石（KAlSi 2 O 6）或二氟化钙（CaF 2）或两者作为投资填料和耐火模具材料，提供了在25〜-500℃范围内具有大于0.80％的热膨胀率的投资和耐火模具材料。。

10. 发明授权

US5161600A System and method for casting and reworking metallic material 失效
标题翻译：金属材料铸造和再加工的系统和方法
公开(公告)号：US5161600A
公开(公告)日：1992-11-10
申请号：US614713
申请日：1990-11-16
申请人： Craig Brodersen , Arun Prasad
发明人： Craig Brodersen , Arun Prasad
IPC分类号： B22D13/06
CPC分类号： B22D13/06
摘要： The system comprises a main casting unit and a glove box unit for reworking cast items. The main casting unit has a frame with a casting chamber, a heating element, a vacuum, a supply of inert gas and a rotatable casting arm for spin casting molten material into a mold. The arm is adapted to removably mount a crucible and mold at one end and, an adjustable counterweight at the other end. The heating element can be moved into and out of the path of the arm and is adapted to heat metallic material in the crucible. The main casting unit also has a driver that projects into the chamber for driving the casting arm with reduced wear on seals between the chamber wall and the driver. A safety bar is provided to prevent the arm from spinning except when desired. The main unit also has electrical and gas conduit connectors for connecting the glove box unit to the main unit.
摘要翻译：该系统包括用于重铸铸件的主铸造单元和手套箱单元。主铸造单元具有框架，其具有铸造室，加热元件，真空，惰性气体供应和用于将熔融材料旋转铸模的可旋转铸造臂。该臂适于在一端可拆卸地安装坩埚和模具，另一端可调节配重。加热元件可以移入和移出臂的路径，并且适于加热坩埚中的金属材料。主铸造单元还具有一个驱动器，该驱动器投入到室中以驱动铸造臂，同时在室壁和驱动器之间的密封件上的磨损减小。提供安全杆以防止手臂旋转，除非需要。主机还具有用于将手套箱单元连接到主机的电气和燃气管道连接器。

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