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公开(公告)号：US06295844B1
公开(公告)日：2001-10-02
申请号：US07415923
申请日：1989-09-11
申请人： Danh C. Tran , Pablo C. Pureza
发明人： Danh C. Tran , Pablo C. Pureza
IPC分类号： C03B37025
CPC分类号： C03B37/029 , C03B2201/82 , C03B2205/64 , C03B2205/80 , C03B2205/90
摘要： An apparatus and method for drawing low loss fluoride glass fibers from a preform. A stream of reactive gas is passed around the preform and fiber so as to prevent moisture and oxygen contamination of the fiber while the fiber is being drawn. The apparatus includes an insulating vessel which surrounds a heating chamber in which the fiber is drawn, and a very narrow heating zone within the chamber for preventing crystallization of the drawn fiber.
摘要翻译： 一种用于从预制件中拉制低损耗氟化玻璃纤维的设备和方法。 反应气体流围绕预成型件和纤维通过，以防止在纤维被拉伸时纤维的水分和氧气污染。 该设备包括一个绝缘容器，该绝缘容器围绕着一个加热室，其中纤维被拉出，并且在室内的非常窄的加热区域用于防止拉伸的纤维的结晶。
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公开(公告)号：US4528011A
公开(公告)日：1985-07-09
申请号：US330336
申请日：1981-12-14
摘要： This invention relates to the immobilization of toxic materials, e.g., radioactive materials, in glass for extremely long periods of time. Toxic materials, such as radioactive wastes, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are deposited in a glass container which is heated to evaporate off non-radioactive volatile materials, if present; to decompose salts, such as nitrates, if any, and to drive off volatile non-radioactive decomposition products, and then to collapse the walls of said container on said radwaste and seal the container and immobilize the contained radwaste, and then burying the resulting product underground or at sea. In another embodiment, the glass container also contains glass particles, e.g., spheres or granules, on which the radwaste solids are deposited. In other embodiments, the glass container can be made of porous glass or non-porous glass, and/or the contained glass particles can be made of porous or non-porous glass or mixtures of porous or non-porous glass, and/or the glass container can be open at one end and closed at the other or open at both ends, and/or the glass container can be closed at one end with a porous or non-porous closure and open at the other end or closed at the other end with a porous closure. When a porous glass container and/or porous glass particles are used, the radwaste deposits within the pores of the glass which are closed during the subsequent heating step after non-radioactive volatiles have been driven off and prior to sealing the container. There results a substantially impervious glass article in which the radwaste is entrapped and which is highly resistant to leaching action. The products resulting from the use of porous glass, as the container, contents, or both, can be used as sources of radioactivity for a variety of applications in medicine, sterilization, food preservation and any other application where radiation can be beneficially employed.
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公开(公告)号：US4932525A
公开(公告)日：1990-06-12
申请号：US415822
申请日：1989-10-02
申请人： Huynh P. Tan , Ajay M. Marathe , Danh C. Tran
发明人： Huynh P. Tan , Ajay M. Marathe , Danh C. Tran
CPC分类号： B65D5/2076 , B65D5/28
摘要： A factory sealed packing container for housing a plurality of tubes is formed from a one-piece, die-cut blank of raw material that is cut, scored and foldable for easy set-up by hand or automatically into the assembled container.
摘要翻译： 用于容纳多个管的工厂密封的包装容器由原件的一体式模切坯料形成，其被切割，刻痕和折叠，以便于手工或自动地装配到组装的容器中。
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4.发明授权Heavy metal-oxide glass optical fibers for use in laser medical surgery and process of making 失效用于激光医疗手术和制造工艺的重金属氧化物玻璃光纤
公开(公告)号：US5796903A
公开(公告)日：1998-08-18
申请号：US356379
申请日：1994-12-27
申请人： Danh C. Tran
发明人： Danh C. Tran
CPC分类号： C03C4/0071 , C03C13/042 , C03C13/048 , G02B6/102
摘要： An improved optical glass fiber for transmitting mid infrared wavelength laser light in surgical instruments, includes a heavy-metal oxide component, preferably GeO.sub.2 doped with heavier cations and anions, and which is capable of delivering at least three watts of laser power continuously for more than ten minutes, without failure. This glass fiber has an .alpha.(dB/m) at 2.94 .mu.m of 10, preferably less, and can transmit at least 27% of the IR through a thickness of one foot.
摘要翻译： 用于在手术器械中传输中红外波长激光的改进的光学玻璃纤维包括重金属氧化物组分，优选掺杂较重阳离子和阴离子的GeO 2，并且能够连续输送至少三瓦的激光功率超过 十分钟，没有失败。 该玻璃纤维具有在2.94微米的10（优选较小）的α（dB / m），并且可以透过至少27％的红外线穿过一英尺的厚度。
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公开(公告)号：US4539032A
公开(公告)日：1985-09-03
申请号：US637433
申请日：1984-08-03
申请人： Danh C. Tran , Chester Fisher
发明人： Danh C. Tran , Chester Fisher
摘要： A method of making fluoride glasses produces fluoride glass having such low OH and low oxide content that the extrinsic optical absorbance caused by the OH vibration at 2.9.mu. is eliminated or substantially reduced. In the method, a glass charge is placed in a capped crucible and dry argon gas is caused to flow through the capped crucible while the temperature is raised to melt the charge. Thereafter, while the dry argon gas flow is continued, the temperature in the furnace is held constant for a time sufficient to obtain a homogenous melt in which all crystalline materials are dissolved. The temperature is then lowered to a value between the glass crystalization temperature and the sublimation temperature of ZrF.sub.4 and then, at isothermal conditions, the flow of dry argon gas is replaced by a flow of SF.sub.6 gas or by a flow of CF.sub.4 gas. At the lowered temperature, the SF.sub.6 or CF.sub.4 gas flow is maintained for a time sufficient to eliminate or greatly reduce OH and oxides in the glass melt. Thereafter, the melt is allowed to cool in a still water-free environment.
摘要翻译： 制造氟化物玻璃的方法产生具有如此低的OH和低氧化物含量的氟化物玻璃，消除或显着降低了由2.9微米的OH振动引起的外在光吸收。 在该方法中，将玻璃电荷置于封盖的坩埚中，并且使干燥的氩气在升高温度以熔化电荷的同时流过封盖的坩埚。 此后，当继续干燥氩气流时，炉中的温度保持恒定足够长的时间以获得所有结晶材料溶解的均匀熔体。 然后将温度降低至玻璃化温度和ZrF 4的升华温度之间的值，然后在等温条件下，干燥氩气的流动被SF6气体流或CF4气体流代替。 在降低的温度下，SF6或CF4气体流量保持足以消除或大大降低玻璃熔体中的OH和氧化物的时间。 此后，使熔体在静止无水的环境中冷却。
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公开(公告)号：US4312774A
公开(公告)日：1982-01-26
申请号：US34567
申请日：1979-04-30
摘要： This invention relates to the immobilization of toxic materials, e.g., radioactive materials, in glass for extremely long periods of time. Toxic materials, such as radioactive wastes, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are deposited in a glass container which is heated to evaporate off non-radioactive volatile materials, if present; to decompose salts, such as nitrates, if any, and to drive off volatile non-radioactive decomposition products, and then to collapse the walls of said container on said radwaste and seal the container and immobilize the contained radwaste, and then burying the resulting product underground or at sea. In another embodiment, the glass container also contains glass particles, e.g., spheres or granules, on which the radwaste solids are deposited. In other embodiments, the glass container can be made of porous glass or non-porous glass, and/or the contained glass particles can be made of porous or non-porous glass or mixtures of porous or non-porous glass, and/or the glass container can be open at one end and closed at the other or open at both ends, and/or the glass container can be closed at one end with a porous or non-porous closure and open at the other end or closed at the other end with a porous closure. When a porous glass container and/or porous glass particles are used, the radwaste deposits within the pores of the glass which are closed during the subsequent heating step after non-radioactive volatiles have been driven off and prior to sealing the container. There results a substantially impervious glass article in which the radwaste is entrapped and which is highly resistant to leaching action. The products resulting from the use of porous glass, as the container, contents, or both, can be used as sources of radioactivity for a variety of applications in medicine, sterilization, food preservation and any other application where radiation can be beneficially employed.
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7.发明授权
公开(公告)号：US5274728A
公开(公告)日：1993-12-28
申请号：US909380
申请日：1992-07-06
申请人： Danh C. Tran
发明人： Danh C. Tran
CPC分类号： G02B6/102 , C03C13/048 , C03C4/0071 , G02B6/02 , G02B6/4296 , A61B18/22
摘要： An improved optical fiber for transmitting mid-infrared wavelength laser light in surgical instruments, includes, a heavy-metal oxide component, preferably GeO.sub.2 doped with heavier cations and anions, is capable of delivering of at least three watts of laser power continuously for more than ten minutes, without failure. This glass fiber has an .alpha.(dB/m) at 2.94.mu.m of 10, preferably less, and can transmit at least 27% of the IR through a thickness of one foot.
摘要翻译： 用于在外科手术器械中传输中红外波长激光的改进的光纤包括重金属氧化物组分，优选掺杂较重阳离子和阴离子的GeO 2，能够连续输送至少三瓦的激光功率超过 十分钟，没有失败。 该玻璃纤维具有在2.94微米的10（优选较小）的α（dB / m），并且可以透过至少27％的红外线穿过一英尺的厚度。
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8.发明授权Protective housing for a leadless chip carrier or plastic leaded chip carrier package 失效无引线芯片载体或塑料引线芯片载体封装的保护外壳
公开(公告)号：US4718548A
公开(公告)日：1988-01-12
申请号：US944266
申请日：1986-12-19
申请人： David Estrada , Danh C. Tran , Alex A. Zambo
发明人： David Estrada , Danh C. Tran , Alex A. Zambo
CPC分类号： H05K7/1076 , H01R13/50
摘要： A protective housing for a leadless chip carrier or plastic leaded chip carrier package includes a substantially rectangular-shaped solid body having a central cavity for receiving a chip package. The solid body is formed of four side portions. Beam members are pivotally connected on opposite sides of two of the four side portions of the solid body for retaining the package within the central cavity. A plurality of support members are formed on the interior surface of the two opposite side portions and the beam members for supporting the lower surface of the package at each of its four corners. The solid body is provided with two opposite chamfered corners for moving outwardly the beam members away from the central cavity so as to permit insertion or removal of the chip package from the central cavity.
摘要翻译： 用于无引线芯片载体或塑料引线芯片载体封装的保护壳体包括具有用于接收芯片封装的中心空腔的基本矩形的固体。 固体由四个侧部形成。 梁构件在固体的四个侧部中的两个的相对侧上可枢转地连接，用于将包装保持在中心腔内。 多个支撑构件形成在两个相对侧部分的内表面和用于在其四个角部的每一个处支撑包装的下表面的梁构件。 固体设置有两个相对的倒角，用于使梁构件向外移动远离中心腔，以允许芯片封装从中心腔插入或移除。
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公开(公告)号：US4544499A
公开(公告)日：1985-10-01
申请号：US386215
申请日：1982-06-07
CPC分类号： C03C11/005 , C03C1/002 , C03C1/026 , C03C21/001 , C03C23/0095 , C03C3/06 , C03C3/061 , C03C3/089 , G21F9/305 , G21F9/36 , C03C2201/10 , C03C2201/20 , C03C2201/23 , C03C2201/3411 , C03C2201/3423 , C03C2201/3429 , C03C2201/40 , C03C2201/54 , C03C2201/60
摘要： This invention relates to the immobilization of toxic, e.g., radioactive materials, internally in a silicate glass or silica gel matrix for extremely long periods of time. Toxic materials, such as radioactive wastes containing radioactive anions, and in some cases cations, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are internally incorporated into a glass matrix, having hydrous organofunctionalsiloxy groups, e.g., hydrous aminoalkylsiloxy or carboxyorganosiloxy, bonded to silicon atoms of said glass and/or hydrous polyvalent metals bonded to silicon atoms of said glass through divalent oxygen linkages or otherwise immobilized therein, by a process which involves the ion exchange of said toxic, radioactive anions with hydroxyl groups attached to said organofunctionalsiloxy groups or with hydroxyl groups attached to the hydrous polyvalent metal. Thereafter, the resulting glass now characterized by a distribution of internally bonded or immobilized, toxic, radioactive anions can be packaged in suitable containers, and disposed of as by burial, and/or they can be sintered to collapse the pores thereof to disposal or for producing useful radiation sources. The porous glass or a porous silica gel having said silicon-bonded organofunctionalsiloxy groups and/or said hydrous polyvalent metal oxy groups, the pores of said glass or silica gel remaining open and uncollapsed, can be used advantageously as a backfill for an underground radioactive waste burial site and as overpack in the waste disposal container. Also included is a novel method for bonding the polyvalent metal to the porous silica glass or gel by substituting the protons of the silicon-bonded hydroxyl groups thereof with an alkali metal or ammonium cation followed by displacement of said cation with the non-radioactive polyvalent metal cation.
摘要翻译： 本发明涉及在硅酸盐玻璃或硅胶基质中内部有毒的例如放射性物质固定极长时间。 含有放射性阴离子的放射性废物，以及在某些情况下，可能是液体形式的阳离子或溶解或分散在液体或气体中的固体的有毒材料内部加入到具有含水官能团的甲硅烷氧基的玻璃基质中，例如 ，含水氨基烷基甲硅烷氧基或羧基有机基甲硅烷氧基，通过涉及将所述有毒放射性阴离子与所述有机放射性阴离子的离子交换的方法，通过二价氧键键合到所述玻璃的硅原子和/或与所述玻璃的硅原子键合的含水多价金属， 连接到所述有机电致甲硅烷氧基基团的羟基或与水合多价金属连接的羟基的羟基。 此后，所得玻璃的特征在于内部结合或固定的，有毒的放射性阴离子的分布可以包装在合适的容器中，并通过埋置进行处理，和/或它们可以烧结以将其孔隙塌缩以处理或用于 生产有用的辐射源。 所述多孔玻璃或多孔硅胶具有所述与硅键合的有机铁氧基甲硅烷氧基和/或所述含水多价金属氧基，所述玻璃或硅胶的孔保持开放和未破裂，可有利地用作地下放射性废物的回填 垃圾处理容器内的包装物， 还包括一种通过用碱金属或铵阳离子取代与硅键合的羟基的质子，然后用非放射性多价金属置换所述阳离子来将多价金属键合到多孔石英玻璃或凝胶上的新方法 阳离子。
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公开(公告)号：US4333847A
公开(公告)日：1982-06-08
申请号：US65752
申请日：1979-08-10
CPC分类号： C03C1/002 , C03C1/026 , C03C11/005 , C03C21/001 , C03C23/0095 , C03C3/06 , C03C3/061 , C03C3/089 , G21F9/02 , G21F9/305 , G21F9/36 , C03C2201/10 , C03C2201/20 , C03C2201/23 , C03C2201/3411 , C03C2201/3423 , C03C2201/3429 , C03C2201/40 , C03C2201/42 , C03C2201/50 , C03C2201/54
摘要： This invention relates to the immobilization of toxic, e.g., radioactive materials, internally in a silicate glass or silica gel matrix for extremely long periods of time. Toxic materials, such as radioactive wastes containing radioactive anions, and in some cases cations, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are internally incorporated into a glass matrix, having hydrous organofunctionalsiloxy groups, e.g., hydrous aminoalkylsiloxy or carboxyorganosiloxy, bonded to silicon atoms of said glass and/or hydrous polyvalent metals bonded to silicon atoms of said glass through divalent oxygen linkages or otherwise immobilized therein, by a process which involves the ion exchange of said toxic, radioactive anions with hydroxyl groups attached to said organofunctionalsiloxy groups or with hydroxyl groups attached to the hydrous polyvalent metal. Thereafter, the resulting glass now characterized by a distribution of internally bonded or immobilized, toxic, radioactive anions can be packaged in suitable containers, and disposed of as by burial, and/or they can be sintered to collapse the pores thereof prior to disposal or for producing useful radiation sources. The porous glass or a porous silica gel having said silicon-bonded organofunctionalsiloxy groups and/or said hydrous polyvalent metal oxy groups, the pores of said glass or silica gel remaining open and uncollapsed, can be used advantageously as a backfill for an underground radioactive waste burial site and as overpack in the waste disposal container. Also included is a novel method for bonding the polyvalent metal to the porous silica glass or gel by substituting the protons of the silicon-bonded hydroxyl groups thereof with an alkali metal or ammonium cation followed by displacement of said cation with the non-radioactive polyvalent metal cation.
摘要翻译： 本发明涉及在硅酸盐玻璃或硅胶基质中内部有毒的例如放射性物质固定极长时间。 含有放射性阴离子的放射性废物，以及在某些情况下，可能是液体形式的阳离子或溶解或分散在液体或气体中的固体的有毒材料内部加入到具有含水官能团的甲硅烷氧基的玻璃基质中，例如 ，含水氨基烷基甲硅烷氧基或羧基有机基甲硅烷氧基，通过涉及将所述有毒放射性阴离子与所述有机放射性阴离子的离子交换的方法，通过二价氧键键合到所述玻璃的硅原子和/或与所述玻璃的硅原子键合的含水多价金属， 连接到所述有机电致甲硅烷氧基基团的羟基或与水合多价金属连接的羟基的羟基。 此后，所得玻璃的特征在于内部结合或固定的，有毒的放射性阴离子的分布可以包装在合适的容器中，并且通过埋置进行处理和/或它们可以在处理之前烧结以使其孔隙塌缩，或 用于生产有用的辐射源。 所述多孔玻璃或多孔硅胶具有所述与硅键合的有机铁氧基甲硅烷氧基和/或所述含水多价金属氧基，所述玻璃或硅胶的孔保持开放和未破裂，可有利地用作地下放射性废物的回填 垃圾处理容器内的包装物， 还包括一种通过用碱金属或铵阳离子取代与硅键合的羟基的质子，然后用非放射性多价金属置换所述阳离子来将多价金属键合到多孔石英玻璃或凝胶上的新方法 阳离子。
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