公开(公告)号：US5184077A

公开(公告)日：1993-02-02

申请号：US766956

申请日：1991-09-25

Applicant: David R. Day ,  Farhad Bybordi

Inventor： David R. Day ,  Farhad Bybordi

IPC: G01R27/26

CPC classification number: G01R27/2635

Abstract: An apparatus which is particularly useful in measuring dielectric changes in materials, even when subjected to abrasive and/or high-pressure environments. The apparatus includes a housing adapted to mounting within a vessel containing the material to-be-tested, the housing presenting at least one exposed surface to the interior of the vessel to contact the material and a set of first and second electrodes which are disposed on the exposed surface of the housing to make contact with the material, such that the dielectric properties of the material within the vessel can be monitored. The apparatus is particularly useful in the monitoring of curing of resins in both high and low pressure molding operations, including sheet molding compound (SMC) processes, reactive injection molding (RIM) techniques and similar operations.

Abstract translation: 即使在受到磨蚀和/或高压环境的影响时，也可特别用于测量材料的介电变化。 该装置包括适于安装在容纳待测试材料的容器内的壳体，该壳体呈现至少一个暴露的表面到容器的内部以接触材料，以及一组第一和第二电极，其被布置在 壳体的暴露表面与材料接触，使得可以监测容器内的材料的介电性质。 该装置特别可用于监测高压和低压成型操作中树脂的固化，包括片状模塑料（SMC）工艺，反应性注塑（RIM）技术和类似操作。

公开(公告)号：US4433450A

公开(公告)日：1984-02-28

申请号：US378957

申请日：1982-05-17

Applicant: Lucian G. McElroy ,  David R. Day

Inventor： Lucian G. McElroy ,  David R. Day

IPC: B60S3/00 ,  F26B19/00

CPC classification number: B60S3/002

Abstract: An apparatus 10 for stripping fluid from the surface of a vehicle including a plenum 14 and a flexible inflatable primary bag 20 having a primary bag inlet releasably mounted on the plenum 14 for allowing the flow of air from the plenum 14 to the primary bag 20 and a nozzle end 22 and a bag opening 24 disposed between the primary bag inlet and the nozzle end 22. The apparatus further includes a flexible inflatable secondary bag 26 having an elongated secondary bag inlet 28 secured about the bag opening 24 for hinging movement and a nozzle end 30 for allowing the flow of air therethrough. The apparatus is characterized by including a hinging control frame 34 for controlling the hinging action of the secondary bag 26 with respect to the primary bag 20.

Abstract translation: 用于从车辆表面剥离流体的装置10，其包括集气室14和柔性可充气的初级袋20，其具有可释放地安装在集气室14上的初级袋入口，用于允许空气从集气室14流到初级袋20， 喷嘴端部22和设置在主要袋入口和喷嘴端部22之间的袋开口24.该装置还包括柔性可充气次级袋26，其具有固定在袋开口24周围的用于铰接运动的细长次级袋入口28和喷嘴 端30以允许空气流过其中。 该装置的特征在于包括用于控制次级袋26相对于初级袋20的铰接动作的铰接控制框架34。

公开(公告)号：US5519319A

公开(公告)日：1996-05-21

申请号：US491632

申请日：1995-06-19

Applicant: Thomas B. Smith ,  Scott A. Marino ,  Ronald J. Tache ,  David R. Day ,  Christian I. Tanzer ,  Tadd B. Hughes ,  Ajoy K. Roy

Inventor： Thomas B. Smith ,  Scott A. Marino ,  Ronald J. Tache ,  David R. Day ,  Christian I. Tanzer ,  Tadd B. Hughes ,  Ajoy K. Roy

IPC: G01R33/389 ,  G01R33/44 ,  G01R33/46 ,  G01V3/00

CPC classification number: G01R33/389 ,  G01N24/085 ,  G01N24/082 ,  G01R33/4625

Abstract: A nuclear magnetic resonance (NMR) system, and related method, develops two or more regression equations or models for a particular polymer property of interest (e.g., melt index or MI) during a calibration procedure using known samples of a material. The polymer material can be, for example, a plastic (e.g., polyethylene, polypropylene, or polystyrene) or a rubber (e.g., ethylene propylene rubber). Regression models for one or more discrete (i.e., two-valued) variables also are developed during calibration, and these models allow a prediction to be made about which of the two or more property (e.g., MI) models should be used for any particular sample of unknown material. The prediction obtained from the discrete variable model indicates which of the two or more models will produce the most accurate estimation of the property of interest for the unknown sample. The best model is thus selected, and then it is used to estimate the property of interest.

Abstract translation: 核磁共振（NMR）系统和相关方法在使用已知材料样品的校准过程期间针对特定的感兴趣的聚合物性质（例如熔体指数或MI）开发两个或多个回归方程或模型。 聚合物材料可以是例如塑料（例如聚乙烯，聚丙烯或聚苯乙烯）或橡胶（例如乙丙橡胶）。 在校准期间，还开发了一个或多个离散（即二值）变量的回归模型，这些模型允许对两个或多个属性（例如，MI）模型中的哪一个应用于任何特定的模型进行预测 未知材料样品。 从离散变量模型获得的预测表明两个或更多个模型中的哪一个将产生未知样本的关注属性的最准确估计。 因此选择最佳模型，然后用于估计感兴趣的属性。

公开(公告)号：US5408181A

公开(公告)日：1995-04-18

申请号：US113833

申请日：1993-08-30

Applicant: Ronald L. Dechene ,  Thomas B. Smith ,  David R. Day ,  Christian I. Tanzer ,  Scott A. Marino ,  Ronald J. Tache ,  Ajoy K. Roy

Inventor： Ronald L. Dechene ,  Thomas B. Smith ,  David R. Day ,  Christian I. Tanzer ,  Scott A. Marino ,  Ronald J. Tache ,  Ajoy K. Roy

IPC: G01N24/08 ,  G01R33/31 ,  G01R33/32 ,  G01R33/36 ,  G01R33/44 ,  G01R33/563 ,  G01R33/20

CPC classification number: G01N24/085 ,  G01R33/31 ,  G01R33/563

Abstract: A pulsed nmr analysis system for polymers materials extracted from industrial processes at a mobility enhancing temperature (at or above glass transition temperature for amorphous polymers, at the crystalline transition temperature for crystalline and semi-crystalline polymers). The sample is measured via nmr techniques and results correlated to viscosity and melt index or melt flow (which are related to average molecular weights). The nmr system (in or out of resonance) includes: sample throughput system (P, LI, V1, V2) and user system controls (104) to establish digitized free induction decay curves (C), from which components functions are determined using linear or non-linear regression techniques to correlate the curve components to the target nuclei and to flow rates in plastics. Substantial improvement of correlation of nmr derived constants and equations of a free induction decay curve with the foregoing polymer properties is obtained via (1) conducting the nmr process at a mobility enhancing temperature (normally elevated compared to the industrial process temperature of the industrial process) and (2) holding temperature substantially constant at such elevated temperature.

Abstract translation: 用于在工业过程中以迁移率增强温度（对于无定形聚合物的玻璃化转变温度以上，在结晶和半结晶聚合物的结晶转变温度下）提取的聚合物材料的脉冲nmr分析系统。 样品通过nmr技术测量，结果与粘度和熔体指数或熔体流动相关（与平均分子量相关）。 nmr系统（进出谐振）包括：采样吞吐系统（P，LI，V1，V2）和用户系统控制（104）建立数字化的自由感应衰减曲线（C），从中可以使用线性 或非线性回归技术来将曲线分量与目标核相关联，并使塑料中的流速相关。 通过（1）以迁移率提高温度（与工业过程的工业过程温度相比通常升高）进行nmr工艺，获得具有上述聚合物性质的自由诱导衰变曲线的nmr导出常数和方程的相关性的显着改善， 和（2）在这种升高的温度下保持温度基本恒定。

公开(公告)号：US5396806A

公开(公告)日：1995-03-14

申请号：US150961

申请日：1993-11-12

Applicant: Ronald L. Dechene ,  David R. Day ,  Thomas B. Smith

Inventor： Ronald L. Dechene ,  David R. Day ,  Thomas B. Smith

IPC: B01J8/00 ,  G01F1/64 ,  G01F1/708 ,  G01F1/712 ,  G01F1/74 ,  G01N27/22

CPC classification number: G01N27/221 ,  B01J8/001 ,  B01J8/0015 ,  G01F1/64 ,  G01F1/7088 ,  G01F1/712 ,  G01F1/74

Abstract: Apparatus and process for measuring mass flow of a slurry mixture of two components of materials, such as a flow of catalyst solid particles (the first component) or droplets in a fluid carrier (the second component). The slurry mixture is added to a process stream (10) or batch reactor. The flow velocity and the volume fraction of one component are measured and combined with the known specific gravity, of the component being measured, and the physical dimensions of the pipe, in which the slurry mixture is flowing, to determine the mass flow of the component. The flow velocity is measured by correlating signals at two separated locations along the flow path, and the volume fraction is measured by combining the known dielectric constants of each of the materials in the mixture and the measured capacitance of the mixture. The capacitance is measured from electrodes which may be isolated from the flowing materials in some applications, but not isolated from the flowing materials in other applications. The temperature (9) and pressure (11) are compensated in the final calculation, and the mass flow result is used to control, via feedback, the amount of such materials delivered. Also, a subtraction technique to remove interfering power line noise is implemented to improve sensitivity.

Abstract translation: 用于测量材料的两种组分的浆料混合物的质量流量的装置和方法，例如流体载体（第二组分）中的催化剂固体颗粒（第一组分）或液滴的流动。 将浆料混合物加入到工艺流（10）或间歇式反应器中。 测量一个组分的流速和体积分数，并与所测量的组分的已知比重和浆料混合物流动的管的物理尺寸相结合以确定组分的质量流量 。 通过在沿着流动路径的两个分开的位置处相关联信号来测量流速，并且通过组合混合物中每种材料的已知介电常数和混合物的测量电容来测量体积分数。 从一些应用中可以从流动材料中分离的电极测量电容，但在其它应用中不与流动材料隔离。 在最终计算中补偿温度（9）和压力（11），质量流量结果用于通过反馈控制所输送的材料的数量。 此外，实施用于消除干扰电力线噪声的减法技术来提高灵敏度。

公开(公告)号：US4777431A

公开(公告)日：1988-10-11

申请号：US879322

申请日：1986-06-27

Applicant: David R. Day ,  Marvin L. Bromberg

Inventor： David R. Day ,  Marvin L. Bromberg

IPC: G01N27/22 ,  G01N33/44 ,  G01N25/66

CPC classification number: G01N33/442 ,  G01N27/221

Abstract: A dielectrometry apparatus for measuring the dielectric properties of a material, the apparatus including a casing adapted to be at least partially implanted into the material, the casing having a cavity defined by an opening which is capable of receiving a portion of the material upon implantation, a first electrode disposed within the cavity to make electrical contact with the material upon implantation, a second electrode disposed within the cavity in a spaced-apart relationship to the first electrode, the first and second electrode being adapted to make electrical contact with the material upon implantation, whereby dielectric measurements can be taken of the material in the cavity, a porous spacer for defining a fixed distance between the first and second electrodes and adapted for saturation with the material upon implantation, and a selectively permeable cover disposed across the opening of the cavity for permitting migration of the material upon implantation while excluding fillers that could interfere with the dielectric measurements.

Abstract translation: 一种用于测量材料的介电性能的电介质测量装置，所述装置包括适于至少部分地植入材料中的壳体，所述壳体具有由开口限定的空腔，该开口能够在植入时接收材料的一部分， 设置在所述空腔内的第一电极，用于在注入时与所述材料电接触;第二电极，以与所述第一电极间隔开的关系设置在所述空腔内，所述第一和第二电极适于与所述材料电接触， 植入，由此可以对空腔中的材料进行电介质测量，用于限定第一和第二电极之间的固定距离并适于在植入时与材料饱和的多孔间隔件，以及横跨开口部分设置的选择性渗透的盖 用于在植入时允许材料迁移的空腔，同时排除fil 可能会干扰介电测量。

公开(公告)号：US4418442A

公开(公告)日：1983-12-06

申请号：US378956

申请日：1982-05-17

Applicant: David R. Day ,  Lucian G. McElroy

Inventor： David R. Day ,  Lucian G. McElroy

IPC: B60S3/00 ,  B60S3/04

CPC classification number: B60S3/002

Abstract: An apparatus (10) for stripping fluids from the surface of a vehicle includes an air distributor (28) and inflatable bags (14-26), each of generally rectangular transverse cross section. The bags (14-26) are supported by the air distributor (28) and each of the bags (14-26) includes an inlet end (40) connected to the air distributor (28) for introducing air under pressure into the bags (14-26) and a nozzle end (42) of smaller area than the inlet end (40) spaced apart from the inlet end (40) for emitting a stream of air while maintaining the bags (14-26) in a nonflailing orientation and substantially rigidly inflated. The invention is characterized by a connector strap (44) having one end portion (46) secured to a first of the bags (14, 18) and a second end portion (48) secured to a second of the bags (16, 20) and spaced along the bags (14-20) from the air distributor (28) for connecting the first bag (14-18) to the second bag (16-20) for properly positioning the second bag (16-20) in relation to a vehicle body when the first bag (14, 18) is deflected by the engaging vehicle (34).

Abstract translation: 用于从车辆表面剥离流体的装置（10）包括空气分配器（28）和可充气袋（14-26），每个大体矩形横截面。 袋（14-26）由空气分配器（28）支撑，并且每个袋（14-26）包括连接到空气分配器（28）的入口端（40），用于将压力下的空气引入袋 14-26）和与入口端（40）间隔开的入口端（40）的面积小的喷嘴端（42），用于在保持袋子（14-26）处于非卷曲方向的同时排放空气流，同时 基本上刚性膨胀。 本发明的特征在于具有固定到第一个袋子（14,18）上的一个端部部分（46）的连接器带（44）和固定到第二个袋子（16,20）上的第二端部部分（48） 并且沿着来自空气分配器（28）的袋（14-20）间隔开，用于将第一袋（14-18）连接到第二袋（16-20），以将第二袋（16-20）相对于 当第一袋（14,18）被接合车辆（34）偏转时，车体。