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公开(公告)号：US3759591A
公开(公告)日：1973-09-18
申请号：US3759591D
申请日：1971-08-30
Applicant: BECKMAN INSTRUMENTS INC
Inventor： WRIGHT H , CASSINGHAM W
Abstract: Face type centrifuge sealing assembly having a pair of preloaded anti-friction bearings between the rotating and stationary portions thereof. The inner races of the bearings are secured to the centrifuge rotor, and the outer races are urged apart, or preloaded, by a resilient member disposed between them. In the preferred method of assembly, the outer races are secured to the stationary portion of the centrifuge after they are preloaded.
Abstract translation: 面型离心机密封组件，其在其旋转和静止部分之间具有一对预加载的抗摩擦轴承。 轴承的内圈固定到离心机转子上，并且外圈通过设置在它们之间的弹性构件推动分开或预加载。 在优选的组装方法中，外圈在预先加载之后被固定到离心机的静止部分上。
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公开(公告)号：US3754281A
公开(公告)日：1973-08-21
申请号：US3754281D
申请日：1972-01-17
Applicant: BECKMAN INSTRUMENTS INC
Inventor： KAMPF R
CPC classification number: G01D5/04 , G01D15/24 , Y10T74/1884 , Y10T74/18888
Abstract: A stylus arm adapted to track along a rectilinear marking path extending across at least one channel of a chart recorder. The free end of the stylus arm carries a stylus adapted to engage the chart, and a guide bearing adapted to engage an elongate guide surface to guide the stylus along the rectilinear path. The constrained end of the stylus arm includes a U-shaped portion which engages a recessed channel in a mounting pin secured to the support platform, so that the stylus arm is both pivotably and slidably mounted with respect to the platform. Means are provided for driving the free end of the stylus arm from one side of the channel to the other, with the effective length of the stylus arm being extended as it approaches the outer reaches of the channel to permit the stylus to track along the rectilinear marking path.
Abstract translation: 适于沿着沿着图表记录器的至少一个通道延伸的直线标记路径跟踪的触控臂。 触针臂的自由端携带适于接合图表的触针和适于接合细长引导表面以沿着直线路径引导触针的引导轴承。 触针臂的约束端包括U形部分，其接合固定到支撑平台的安装销中的凹陷通道，使得触针臂相对于平台枢转并可滑动地安装。 提供了用于将触针臂的自由端从通道的一侧驱动到另一侧的装置，其中触针臂的有效长度在接近通道的外部延伸部时延伸，以允许触针沿着直线 标记路径。
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公开(公告)号：US3752939A
公开(公告)日：1973-08-14
申请号：US3752939D
申请日：1972-02-04
Applicant: BECKMAN INSTRUMENTS INC
Inventor： BARTZ M
CPC classification number: A61N1/0541 , A61F11/004 , A61N1/36036
Abstract: There is disclosed a method and apparatus for inducing the sensation of intelligible hearing by direct electrical excitation of the auditory nerve endings distributed along the basilar membrane within the cochlea. An electrode is positioned within the lower scala of the cochlea by insertion through the round window. The electrode consists of a resilient base member shaped to conform to the inner surface of the lower scala, such base member extending along the basilar membrane. The base member retains a pair of conductors which extend parallel to the length of the basilar membrane. Means are also provided for transmitting an excitation signal to a receiver implanted with and connected to the conductors. Several configurations for the electrode are disclosed as well as several techniques for the excitation thereof.
Abstract translation: 公开了一种通过直接电激发沿着耳蜗内基底膜分布的听觉神经末梢来诱导可听觉听觉的方法和装置。 通过插入圆形窗口将电极定位在耳蜗的下部Scala内。 该电极由一个形状适合于下部Scala的内表面的弹性底座构成，该底座部件沿着基底膜延伸。 基部构件保持平行于基底膜的长度延伸的一对导体。 还提供了用于将激励信号发射到植入并连接到导体的接收器的装置。 公开了电极的几种配置以及用于激发它们的几种技术。
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公开(公告)号：US3737687A
公开(公告)日：1973-06-05
申请号：US3737687D
申请日：1972-05-15
Applicant: BECKMAN INSTRUMENTS INC
Inventor： MILLER C
Abstract: A darkfield type illumination device for performing slide agglutination tests or the like. The device comprises a casing having an opening therein. A transparent slide having a reaction area thereon is mounted on the casing with the reaction area positioned over the opening. A nonreflective surface is provided in the casing below the opening. Illumination from the light source is transmitted in two paths extending from opposite sides of and below said opening upwardly at an angle to the opening. Such angle is between about 30* and 35* to provide the maximum benefit of particle illumination of material in the reaction area of the slide and darkfield effect of the device. Preferably the two paths of illumination pass through only corresponding onehalf sections of the reaction area of the slide to provide enhanced illumination of the particles.
Abstract translation: 用于进行幻灯片凝集试验等的暗视场型照明装置。 该装置包括其中具有开口的壳体。 其上具有反应区域的透明载玻片安装在壳体上，反应区域位于开口上方。 在开口下方的壳体中设置非反射表面。 来自光源的照明以两个路径传播，该路径以与开口成一定角度的方式向上延伸。 这样的角度在大约30°和35°之间，以提供在滑块的反应区域中的材料的粒子照射和装置的暗场效应的最大益处。 优选地，两个照明路径仅穿过载玻片的反应区域的对应的两个部分，以提供颗粒的增强照明。
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25.发明授权Slide selector switch with multiple independently removable slide assembly modules 失效具有多个独立可拆卸滑盖组件的滑动选择开关
公开(公告)号：US3737594A
公开(公告)日：1973-06-05
申请号：US3737594D
申请日：1972-03-15
Applicant: BECKMAN INSTRUMENTS INC
Inventor： ROSMANITH C
Abstract: A slide selector switch including a plurality of independently removable slide assembly modules mounted within a housing, with each module having electrical contacts adapted to engage an etched printed circuit board at the rear of the housing. Each module includes a non-signal carrying slide supporting bar and at least one slide which supports the electrical contacts and is adapted for positive detenting to multiple switch positions along the bar. Each module is otherwise provided with a targeting arrangement which produces a highly visible display of an indicia associated with the selected switch position. The slide selector switch enables a high number of positive circuit selections to be made from a small panel area. Furthermore the slide assembly modules are readily removable from the switch housing for replacement, and such removal does not disturb the circuitry of the circuit board or wiring attached thereto, since the modules have no signal carrying member other than the electrical contacts.
Abstract translation: 一种滑动选择器开关，其包括安装在壳体内的多个独立可拆卸的滑动组件模块，每个模块具有适于接合在壳体后部的蚀刻印刷电路板的电触头。 每个模块包括非信号承载滑动支撑杆和支撑电触头的至少一个滑块，并且适于沿着该杆对多个开关位置进行正定位。 每个模块另外设置有瞄准装置，其产生与所选择的开关位置相关联的标记的高度可见的显示。 滑动选择开关可以从小面板区域进行大量正电路选择。 此外，滑块组件模块可以容易地从开关壳体移除以进行更换，并且这种移除不会妨碍连接到其上的电路板或布线的电路，因为模块没有除电触点之外的信号承载构件。
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Patent Agency Ranking
公开(公告)号：US3726144A
公开(公告)日：1973-04-10
申请号：US3726144D
申请日：1971-08-02
Applicant: BECKMAN INSTRUMENTS INC
Inventor： KLEIN G
CPC classification number: G01N1/38 , G01N2001/382
Abstract: A single rotary cam in a liquid sample dilutor has multiple mechanical actuator program cycle profiles, which during one cam cycle sequentially actuate the cam arc intervals which determine the liquid volume inputs into and the outputs from a mixing cup in which a selected sample liquid volume, a selected diluent liquid volume, the sample and diluent liquid mixture volume, the diluted liquid sample volume aspiration time interval, the waste diluted sample liquid volume removal, and the diluent liquid volume waste rinse and ejection are controlled. The cam member mechanically actuates the pistons of the three liquid volume measuring syringes, the system slider valve, the aspirator probe, and the sample probe, operatively cooperating in sample and diluent volume measurement, and diluted sample volume withdrawal from the dilutor.
Abstract translation: 液体样品稀释器中的单个旋转凸轮具有多个机械致动器程序循环轮廓，其在一个凸轮循环期间顺序地致动凸轮弧间隔，其确定从其中所选择的样品液体体积的混合杯的液体体积输入和输出， 选择的稀释液体积，样品和稀释液液体混合物体积，稀释的液体样品体积抽吸时间间隔，废稀释样品液体体积去除以及稀释液体积废液冲洗和喷射。 凸轮部件机械地驱动三个液体体积测量注射器的活塞，系统滑块阀，抽吸器探针和样品探针，在样品和稀释剂体积测量中可操作地协作，并从稀释器中稀释样品体积。
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27.发明授权
公开(公告)号：US3724956A
公开(公告)日：1973-04-03
申请号：US3724956D
申请日：1970-11-27
Applicant: BECKMAN INSTRUMENTS INC
Inventor： NEARY M
CPC classification number: G01T1/204 , G01N21/76 , Y10S435/808
Abstract: A demountable sample cell holder and cell is provided to adapt liquid scintillation counters for chemiluminescence measurements. The cell holder is cylindrical and mounts in one of the photomultiplier apertures. A sample cell is mounted within the cylinder by pliable spacers and is connected to inlet and outlet fillings on the cell holder by coiled black tubing. The cell is aluminized to enhance photon transfer efficiency and painted black. The holder is formed into two sections which may be unscrewed so that differing size cells may be utilized.
Abstract translation: 提供可拆卸的样品池保持器和电池以适应液体闪烁计数器用于化学发光测量。 电池座是圆柱形的，并安装在一个光电倍增管孔中。 样品池通过柔软的间隔件安装在圆筒内，并通过卷绕的黑色管道连接到电池座上的入口和出口填充物。 电池被镀铝以提高光子转移效率并涂上黑色。 保持器形成为可以拧开的两个部分，以便可以使用不同尺寸的细胞。
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公开(公告)号：US3722978A
公开(公告)日：1973-03-27
申请号：US3722978D
申请日：1971-08-30
Applicant: BECKMAN INSTRUMENTS INC
Abstract: Long pass optical filters for the infrared region and methods of making the same are disclosed which utilize a transmitting matrix of high and low refractive index materials for selectively scattering all wavelengths shorter than a critical wavelength and which have a relatively sharp cut-on front. By the inclusion of materials having absorption bands at wavelengths longer than the cut-on wavelength of the scattering medium, the cut-on front may be sharpened and positioned over a wide range to provide a filter having a preselected cut-on wavelength and cut-on front. The absorbing materials may include one or more hygroscopic materials whose particles tend to coalesce when finely divided. By adding small quantities of a highly refined mineral oil and mulling before die pressing while heating, these materials may be evenly distributed throughout the area of the filter.
Abstract translation: 公开了用于红外区域的长通光学滤波器及其制造方法，其利用高折射率材料和低折射率材料的传输矩阵来选择性地散布短于临界波长的所有波长并且具有相对尖锐的切割前部。 通过包含具有比散射介质的切割波长更长的波长的吸收带的材料，可以将切割前部锐化并定位在宽的范围内，以提供具有预选的切入波长的滤光片， 在前面 吸收材料可以包括一种或多种吸湿材料，其颗粒在细分时倾向于聚结。 通过在加热之前加入少量高度精炼的矿物油和模压，这些材料可以均匀分布在过滤器的整个区域。
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公开(公告)号：US3718563A
公开(公告)日：1973-02-27
申请号：US3718563D
申请日：1971-02-22
Applicant: BECKMAN INSTRUMENTS INC
CPC classification number: G01N27/404
Abstract: A polarographic sensor comprising a pair of electrodes joined by an electrolyte with a multi-layer gas permeable-essentially ion impermeable membrane separating the electrodes and electrolyte from the sample medium. The layers of the membrane are held together so as to prevent migration of electrolyte therebetween to the region overlying the sensing electrode and to prevent the trapping of gas or liquid between the layers in such region. The outer layer of the membrane is preferably formed of silicone rubber while the next layer is formed of a material which is less permeable to gas and water vapor than the outer membrane, for example Teflon. A polarographic sensor employing such a membrane exhibits good time response and minimal flow sensitivity.
Abstract translation: 一种极谱传感器，包括一对由电解质连接的电极和多层气体可渗透的基本上离子不可渗透的膜，将电极和电解质与样品介质分离。 膜的层保持在一起，以便防止其间的电解质迁移到覆盖感测电极的区域，并且防止在这些区域中的层之间的气体或液体的捕获。 膜的外层优选由硅橡胶形成，而下一层由比外膜（例如特氟隆）比气体和水蒸气渗透性较差的材料形成。 使用这种膜的极谱传感器表现出良好的时间响应和最小的流动灵敏度。
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公开(公告)号：US3714829A
公开(公告)日：1973-02-06
申请号：US3714829D
申请日：1970-06-29
Applicant: BECKMAN INSTRUMENTS INC
Inventor： GILBERT P
IPC: G01L9/00
CPC classification number: G01L9/0077
Abstract: A pressure measuring system including a light source and a pressure sensitive membrane illuminated by the light source and adapted to reflect the light in a manner dependent upon the pressure being sensed. A sensor is illuminated by the reflected light and includes a photosensitive detector connected in a Wheatstone bridge circuit lacking diagonal bilateral symmetry.
Abstract translation: 一种压力测量系统，包括由光源照射的光源和压敏膜，并且适于以取决于被感测的压力的方式反射光。 传感器被反射光照射，并且包括连接在不对称双边对称的惠斯通电桥电路中的光敏检测器。
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