专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US3941487A Colorimetric fluid analyzer 失效
标题翻译：比色液分析仪
公开(公告)号：US3941487A
公开(公告)日：1976-03-02
申请号：US516008
申请日：1974-10-18
申请人： Robert J. Ehret , Donald E. Stephens , Douglas H. Durland , Thomas D. Sharples
发明人： Robert J. Ehret , Donald E. Stephens , Douglas H. Durland , Thomas D. Sharples
IPC分类号： G01J3/12 , G01N21/03 , G01N21/31 , G01J3/46 , G01N1/10 , G01N21/28
CPC分类号： G01N21/314 , G01J2003/1213 , G01J2003/1226 , G01N2021/3166 , G01N21/03 , G01N2201/0231 , G01N2201/069
摘要： A light beam is passed through a cuvette, through which flows liquid to be analyzed optically for concentration of color reacted amino acids. The emergent beam is directed through a series of dichroic beam separators and pass band filters to produce three beams of substantially three different wavelengths. Photoelectric detectors produce electrical signals corresponding to each of the three wavelengths. Two of the signals are characteristic of the substance to be detected. The third is subtracted from the other two wavelength signals to produce a pair of output signals from which base line noise has been substantially eliminated.
摘要翻译：将光束通过比色皿，通过该比色液体流动待分析的液体以浓缩着色反应的氨基酸。出射光束被引导通过一系列二向色光束分离器和通带滤光器以产生三个基本上三个不同波长的光束。光电探测器产生对应于三个波长中的每一个的电信号。两个信号是待检测物质的特征。从其他两个波长信号中减去第三个，以产生基本上消除了基线噪声的一对输出信号。

2. 发明授权

US4438070A Packed column thermal reactor for an analytical instrument 失效
标题翻译：用于分析仪器的填充柱热反应器
公开(公告)号：US4438070A
公开(公告)日：1984-03-20
申请号：US327379
申请日：1981-12-04
申请人： Donald E. Stephens , Thomas D. Sharples
发明人： Donald E. Stephens , Thomas D. Sharples
IPC分类号： G01N30/30 , G01N30/60 , G01N31/08
CPC分类号： G01N30/30 , G01N30/6052 , G01N2030/303 , G01N2030/3084 , G01N30/6026
摘要： An elongate straight column for use as a reactor in an analytical instrument. The column contains inert packed material which provides for the necessary flow path length for a fluid stream entering the reactor. Fittings are incorporated onto the ends of the column in such a manner that their width is no larger than the width of the column. The column configuration for a reactor allows more versatility in the type of temperature regulator mechanisms used to heat and cool the reactor.
摘要翻译：用作分析仪器中的反应器的细长直柱。该柱包含惰性填充材料，其为进入反应器的流体流提供必要的流动路径长度。将配件以这样的方式结合到柱的端部上，使得它们的宽度不大于柱的宽度。反应器的色谱柱配置允许在用于加热和冷却反应器的温度调节器机构的类型中具有更多的通用性。

3. 发明授权

US4772966A Synchronization method and apparatus 失效
标题翻译：同步方法和装置
公开(公告)号：US4772966A
公开(公告)日：1988-09-20
申请号：US657948
申请日：1984-10-05
申请人： Thomas D. Sharples , Michael L. Collette , Kelly Quan , George Wong
发明人： Thomas D. Sharples , Michael L. Collette , Kelly Quan , George Wong
IPC分类号： G11B15/18 , G11B15/467 , G11B27/00 , G11B27/024 , G11B27/028 , G11B27/10 , G11B27/32 , G11B27/34 , G11B27/36 , H04N9/797 , G11B , G11B15/46
CPC分类号： H04N9/7976 , G11B15/1808 , G11B15/4675 , G11B27/002 , G11B27/028 , G11B27/10 , G11B27/323 , G11B27/34 , G11B27/36 , G11B2220/90 , G11B27/024
摘要： A synchronizer for synchronizing a slave tape recorder to a master tape recorder. When the speed of the master recorder exceeds 2.5 times the nominal play speed, the synchronizer causes the slave recorder to lag behind the master recorder by an amount related to the speed of the slave recorder. At lower speeds, the synchronizer causes the slave recorder to lock onto the position and speed of the master recorder. The synchronizer employs time-code readers to read time-code on address tracks on the master and slave recorders. The time-code readers produce not only time-code but also clock pulses which are employed to determine the speed of master and slave with high resolution. Both the time-code readers and a resolver employed in the synchronizer are constructed from gate assemblies rather than processors to reduce execution times for the processor in the synchronizer. The resolver is a digital resolver which includes a phase comparator which produces pulses having a width related to the phase difference between indications of the synchronization word in the time-code and polarity to indicate whether the master leads or lags the slave. This signal is applied to a counter which generates a digital error signal based on the phase difference which is employed to control the speed of the slave recorder.
摘要翻译：用于将从属磁带录音机同步到主磁带录音机的同步器。当主记录仪的速度超过标称播放速度的2.5倍时，同步器会使从属录像机落后于主记录仪，与从机速度相关。在较低的速度下，同步器使从机记录器锁定到主记录仪的位置和速度。同步器采用时间码读取器来读取主和从记录器上的地址轨道上的时间码。时间码读取器不仅产生时间码，而且产生用于确定具有高分辨率的主机和从机速度的时钟脉冲。同步器中使用的时间码读取器和解析器都是由门组件而不是处理器构成的，以减少同步器中处理器的执行时间。解算器是数字解析器，其包括相位比较器，其产生具有与时间码中的同步字的指示之间的相位差相关的宽度的脉冲和极性，以指示主器件是引线还是滞后从器件。该信号被施加到计数器，该计数器基于用于控制从记录器的速度的相位差产生数字误差信号。

4. 发明授权

US4285904A Method and apparatus for sealing centrifuge tubes 失效
标题翻译：用于密封离心管的方法和装置
公开(公告)号：US4285904A
公开(公告)日：1981-08-25
申请号：US912696
申请日：1978-06-05
申请人： Kenzo Ishimaru , Thomas D. Sharples
发明人： Kenzo Ishimaru , Thomas D. Sharples
IPC分类号： B29C57/10 , B29C65/24 , B29C24/00
CPC分类号： B29C57/10 , B29C65/18 , B29C65/245 , B29C65/7841 , B29C66/542 , B29C65/242 , B29L2031/7148
摘要： A method of closing or sealing a filler passage formed in a neck or stem protruding from the small access opening in the upper end of a substantially closed centrifuge tube. The neck is formed of a readily fusible material and a heat conductive cap member is positioned over the open end portion of the neck closely confining it therein. Heat and pressure are applied to the cap causing progressive portions of the neck to melt and fold into the filler passage where it forms a molten mass within the filler passage above the access opening to the tube. Heat and pressure are removed, permitting the cap to cool and the molten mass to solidify completely sealing or filler passage of the centrifuge tube. The cap is then removed and the centrifuge tube is fully prepared for centrifugation.
摘要翻译：关闭或密封形成在颈部或杆中的填充通道的方法，所述颈部或杆从基本封闭的离心管的上端中的小入口开口突出。颈部由容易熔融的材料形成，并且导热帽部件定位在颈部的开口端部上，紧密地限制在其中。将加热和压力施加到盖子上，使得颈部的渐进部分熔化并折叠到填充通道中，在填充通道中，其在填充通道内在管道的通道开口上方形成熔融物质。去除热和压力，允许盖冷却，并使熔融物质固化，使离心管完全密封或填充物通过。然后取出盖子，并将离心管完全制备用于离心。

5. 再颁专利

USRE35071E Optimum fixed angle centrifuge rotor 失效
标题翻译：最佳定角离心机转子
公开(公告)号：USRE35071E
公开(公告)日：1995-10-24
申请号：US080455
申请日：1993-06-18
申请人： Mark L. Lewis , Thomas D. Sharples , Stephen E. Little
发明人： Mark L. Lewis , Thomas D. Sharples , Stephen E. Little
IPC分类号： C12M1/00 , B04B5/02 , B04B5/04
CPC分类号： B04B5/0414
摘要： A centrifuge rotor and method for gradient density separation which supports a generally cylindrical volume of sample solution with its axis inclined to the spin axis at an angle which is optimized for maximum separation efficiency while reducing contamination by undesirable centrifugates upon reorientation of the desirable centrifugates. .Iadd.The sample solution is contained in a centrifuge tube which is closed at its top end by a top portion which is supported by a support cap. The undesirable centrifugates are pelleted to the end corners of the inclined centrifuge tube. The rotor and method are particularly adapted, for example, for separation of nucleic acid into plasmid DNA and chromosomal DNA by density gradient centrifugation. .Iaddend.The optimum angle is determined based on the relationship .theta.=Tan.sup.-1 (D/15L).sup.0.5 where D and L are respectively the diameter and length of the cylindrical volume of the sample solution and .theta. is the angle of inclination.
摘要翻译：用于梯度密度分离的离心机转子和方法，其支撑大致圆柱体积的样品溶液，其轴线以旋转轴线倾斜，该角度针对最大分离效率而被优化，同时在期望的离心机重新定向时减少不需要的离心液的污染。样品溶液容纳在离心管中，该离心管在其顶端由顶部部分封闭，顶部由支撑帽支撑。将不期望的离心液粒化成倾斜离心管的端角。转子和方法特别适用于例如通过密度梯度离心将核酸分离成质粒DNA和染色体DNA。基于θ= Tan-1（D / 15L）0.5的关系确定最佳角度，其中D和L分别是样品溶液的圆柱体积的直径和长度，θ是倾斜角。

6. 发明授权

US3949965A Ball valve 失效
公开(公告)号：US3949965A
公开(公告)日：1976-04-13
申请号：US414401
申请日：1973-11-09
申请人： Thomas D. Sharples , John T. Taylor
发明人： Thomas D. Sharples , John T. Taylor
IPC分类号： F16K11/087 , F16K27/06 , F16K3/22
CPC分类号： F16K27/067 , F16K11/0873
摘要： A small ball valve for chemically active materials is provided which does not require the strength of metal parts and which permits the use of brittle material such as glass or ceramic as well as materials such as fluorocarbon polymers and polytetrafluoroethylene which are resistant to the action of chemically active fluids. A free-floating construction is provided without requiring a stem packing gland and permitting the stem to be integral with the ball. Identical sealing rings are provided with clamping screws which press the sealing rings inward against the ball and outward against the openings in the valve body, the diameter of the valve stem being smaller than the opening in the sealing ring and clamping screw therefor so that the portion of the ball surrounding the valve stem may also float freely under the sealing means with the seal around the ball stem being against the ball itself instead of against the valve stem. For reinforcement of the valve body or to permit the use of the valve when the controlled fluid is under high pressure a metal reinforcing ring may be fitted around the valve body.

7. 发明授权

US4457737A Small diameter shaft connection 失效
标题翻译：小直径轴连接
公开(公告)号：US4457737A
公开(公告)日：1984-07-03
申请号：US271349
申请日：1981-06-08
申请人： Thomas D. Sharples
发明人： Thomas D. Sharples
IPC分类号： B04B9/08 , B21D39/04 , F16B4/00 , F16B17/00 , F16D1/08 , F16D3/02 , F16C3/00 , F16D3/76
CPC分类号： F16D1/0829 , Y10T29/49934 , Y10T29/49938 , Y10T403/7061
摘要： A torque-transmitting connector is disclosed which fits between a spindle and the walls of a bore in a rotating member. The connector includes a sleeve encircling the spindle and two flanges located at its opposite ends. Each flange is initially frustoconical, and is forced into substantially a disc shape to grip the spindle and the wall of the bore. The flange at the bottom of the bore is flattened first by a small diameter punch acting against the other end of the sleeve; and the other flange is then flattened by an annular punch encircling the small diameter punch.
摘要翻译：公开了一种扭矩传递连接器，其配合在主轴和旋转构件中的孔的壁之间。连接器包括围绕心轴的套筒和位于其相对端的两个凸缘。每个凸缘最初是截头圆锥形的，并且被迫形成大致圆盘形状以夹紧心轴和孔的壁。孔的底部的凸缘首先被作用在套筒另一端的小直径的冲头平坦化; 然后通过环绕小直径冲头的环形冲头将另一个凸缘平坦化。

8. 发明授权

US4167955A Layering a liquid sample onto centrifuge tube liquid contents 失效
标题翻译：将液体样品分层到离心管液体内容物上
公开(公告)号：US4167955A
公开(公告)日：1979-09-18
申请号：US912695
申请日：1978-06-05
申请人： Thomas D. Sharples
发明人： Thomas D. Sharples
IPC分类号： B01L99/00 , B65B3/04
CPC分类号： B01L3/0293
摘要： A method and apparatus for layering a liquid sample onto a support liquid through a narrow filler passage in a neck protruding from the opening in a substantially closed, flexible centrifuge tube by supporting the tube with its liquid support contents in an upright position, attaching a funnel shaped container to the neck of the tube, applying a squeezing force to the flexible tube to reduce its internal volume thereby forcing the liquid contents into the neck thereof to form a meniscus adjacent the opening of the filler passage, adding a sample liquid into the funnel shaped container above the filler opening and in contact with the meniscus of the support liquid, and releasing the squeezing force from the tube allowing it to return to its normal volume thereby drawing the sample into the tube layered on top of the support liquid.
摘要翻译：一种用于将液体样品层叠到支撑液体上的方法和装置，所述支撑液体通过在基本上密闭的柔性离心管中从所述开口突出的颈部中的窄填料通道将所述管的液体支撑物质支撑在直立位置，将管状的容器施加到管的颈部，向柔性管施加挤压力以减小其内部容积，从而迫使液体内容物进入其颈部，以形成邻近填充通道的开口的弯液面，将样品液体加入漏斗并且与支撑液体的弯液面接触，并且释放来自管的挤压力，使其能够返回其正常体积，从而将样品拉入层叠在支撑液体顶部的管中。

9. 发明授权

US4670004A Swinging bucket rotor having improved bucket seating arrangement 失效
标题翻译：具有改进的斗座安排的摇摆转子
公开(公告)号：US4670004A
公开(公告)日：1987-06-02
申请号：US808406
申请日：1985-12-11
申请人： Thomas D. Sharples , Alireza Piramoon
发明人： Thomas D. Sharples , Alireza Piramoon
IPC分类号： B04B5/02 , B04B5/04
CPC分类号： B04B5/0421
摘要： A swinging bucket centrifuge rotor including seating surfaces having shapes which cause buckets seating thereon to be relieved of side loading forces. Each bucket is symmetrical and is pivotally supported by bucket pins that rest in respective spring-loaded carrier assemblies. The spring constants of the springs of the carrier assemblies are selected so that the leading edge of each bucket bottom rests upon a curved surface and clears the respective seating surface before the trailing edge thereof contacts the same. The resulting bucket orientation assures that, upon seating, each bucket rotates until its bucket pins lift slightly off of the surfaces of the respective carrier assemblies.
摘要翻译：摆动式离心机转子，其包括具有导致其上放置的铲斗的形状的座面，以减轻侧向加载力。每个铲斗是对称的，并且由铲斗销枢转地支撑，该销钉托在相应的弹簧加载的托架组件中。选择载体组件的弹簧的弹簧常数，使得每个铲斗底部的前缘搁置在弯曲表面上，并且在其后缘与其接触之前清除相应的底座表面。所产生的铲斗取向确保在就座时，每个铲斗旋转直到其铲斗销稍微离开相应的托架组件的表面。

10. 发明授权

US4360151A Aerosol resistant bowl rotor 失效
标题翻译：耐气溶胶碗转子
公开(公告)号：US4360151A
公开(公告)日：1982-11-23
申请号：US164877
申请日：1980-07-01
申请人： Mark J. Cowell , Thomas D. Sharples
发明人： Mark J. Cowell , Thomas D. Sharples
IPC分类号： B04B5/04 , B04B7/08 , B04B7/02
CPC分类号： B04B7/08 , B04B5/0414 , B04B2007/025
摘要： A sealed bowl rotor having a transparent lid for easy visual checking of rotor contents. The lid has sealing means that automatically creates a seal which prevents the escape of liquid samples from within the rotor when the lid is placed on the rotor. The rotor design prevents the application of any possible hydraulic loading on the transparent lid. The installing/removing mechanism on the lid provides the capability for removal of the lid after the centrifugation run without disturbing the contents of the samples within the rotor.
摘要翻译：具有透明盖的密封碗式转子，便于目视检查转子内容物。盖子具有密封装置，当盖子被放置在转子上时，该密封装置自动地产生防止液体样品从转子内逸出的密封件。转子设计防止在透明盖上施加任何可能的液压负载。盖上的安装/移除机构提供了在离心运行后去除盖子的能力，而不会干扰转子内样品的内容物。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式