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    Composite material of discontinuous silicon carbide particles and continuous silicon matrix and method of producing same
    1.
    发明授权
    Composite material of discontinuous silicon carbide particles and continuous silicon matrix and method of producing same 失效
    不连续碳化硅颗粒和连续硅基体的复合材料及其制备方法

    公开(公告)号：US4795673A

    公开(公告)日：1989-01-03

    申请号：US924174

    申请日：1986-10-28

    申请人： Francis J. Frechette ,  Martin R. Kasprzyk ,  Douglas J. McDowell ,  Joseph S. Zanghi

    发明人： Francis J. Frechette ,  Martin R. Kasprzyk ,  Douglas J. McDowell ,  Joseph S. Zanghi

    IPC分类号： C04B35/56 ,  C04B35/573 ,  C04B35/71 ,  C22C29/06 ,  C22C32/00 ,  B32B5/16 ,  B32B ,  C04B33/34 ,  C04B33/36

    CPC分类号： C04B35/565 ,  C04B35/573 ,  C04B35/71 ,  C22C29/065 ,  C22C32/0063 ,  Y10T428/259 ,  Y10T428/2993

    摘要： Dense, strong, composite materials are produced from mixtures of silicon and silicon carbide. The composite materials are characterized by a mixture of finely-divided silicon carbide in a substantially continuous matrix of silicon. The composite materials contain from about 40 to about 60 percent by volume silicon carbide and from about 60 to about 40 percent by volume silicon. The composite materials are produced by initially producing a finely-divided silicon carbide starting component and forming the component into a green body of the desired shape. The green body is subsequently impregnated with molten silicon in the absence of any substantial amount of carbon. Suitably, a thermoplastic resin binder may be added to the silicon carbide starting material to aid in forming the green body. The impregnation step may be carried out by surrounding the green body with finely-divided silicon metal and heating the covered body to a temperature above the melting point of silicon. The composite materials described have flexural strength of over about 90,000 psi at 1100.degree. C., elastic modulus of about 38 million psi at room temperature, are essentially non-porus and have densities ranging from about 2.6 to about 2.8 g/cc.

    摘要翻译： 由硅和碳化硅的混合物制成密集的，强的复合材料。 复合材料的特征在于基本上连续的硅基体中的细碎碳化硅的混合物。 复合材料含有约40至约60体积％的碳化硅和约60至约40体积％的硅。 复合材料通过最初生产细碎的碳化硅起始组分并将组分形成所需形状的生坯体来制备。 随后在不存在任何大量碳的情况下，将生坯体浸入熔融硅中。 适当地，可以将热塑性树脂粘合剂添加到碳化硅原料以帮助形成生坯。 浸渍步骤可以通过用细碎的硅金属包围生坯并将被覆盖体加热到高于硅熔点的温度来进行。 所描述的复合材料在1100℃下具有超过约90,000psi的弯曲强度，在室温下的弹性模量约为3800万psi，基本上为非孔隙，密度范围为约2.6至约2.8g / cc。

    Toothbrush
    2.
    发明授权
    Toothbrush 有权
    牙刷

    公开(公告)号：US06108851A

    公开(公告)日：2000-08-29

    申请号：US410703

    申请日：1999-10-01

    申请人： William A. Bredall ,  Miklos M. Breuer ,  Ximena A. Gavino ,  Christopher Loew ,  Jeffrey Scott Meessmann ,  Douglas J. McDowell ,  Alberto B. Sabato ,  Jean L. Spencer ,  James D. Vidra ,  Stanley Wreford

    发明人： William A. Bredall ,  Miklos M. Breuer ,  Ximena A. Gavino ,  Christopher Loew ,  Jeffrey Scott Meessmann ,  Douglas J. McDowell ,  Alberto B. Sabato ,  Jean L. Spencer ,  James D. Vidra ,  Stanley Wreford

    IPC分类号： A46B9/04

    CPC分类号： A46B9/026 ,  A46B9/045 ,  Y10S15/05

    摘要： The present invention relates to a toothbrush which exhibits superior interproximal and gingival margin cleaning. The toothbrush includes an elongated handle member connected to a toothbrush head member. The head is divided into two regions. A "toe" region is defined as the part of the head which is furthest from the handle and a "heel" region is the portion of the head which is closest to the handle. A multiplicity of bristles extend from the heel region of the head; the distal ends of these bristles form a longitudinally aligned concave shape when viewed on end. Likewise, a multiplicity of bristles extend from the toe region of the head, wherein said bristles extending from the toe portion of the head are at least as tall as the general height of said bristles extending from the heel portion when viewed from the side and wherein the side profile view of the distal ends of the bristles extending from the toe portion form a generally linear surface which forms an angle relative to the general plane of the bristles extending from the heel portion of from 0.degree. to about 45.degree. declining from the edge of the toe portion distal to the heel portion to the edge of the toe portion which is proximal to the heel portion.

    摘要翻译： 本发明涉及牙刷，其显示出优异的邻间和牙龈边缘清洁。 牙刷包括连接到牙刷头部件的细长手柄部件。 头部分为两个区域。 “脚趾”区域被定义为距手柄最远的头部的一部分，并且“跟部”区域是头部最接近手柄的部分。 多个刷毛从头部的跟部区域延伸; 当从末端看时，这些刷毛的远端形成纵向对准的凹形。 类似地，多个刷毛从头部的趾部区域延伸，其中从头部的趾部延伸的所述刷毛至少与从侧面观察时从后跟部分延伸的所述刷毛的总高度一样高，并且其中 从趾部延伸的刷毛的远端的侧剖视图形成大致线性的表面，其相对于从0°至约45°的跟部延伸的刷毛的总平面形成一角度，从0°至约45°的边缘 的脚趾部分远离脚跟部分到脚趾部分的靠近跟部部分的边缘。

    Exhalation valve for respiratory circuit
    5.
    发明授权
    Exhalation valve for respiratory circuit 失效
    呼吸回路呼吸阀

    公开(公告)号：US5020532A

    公开(公告)日：1991-06-04

    申请号：US270703

    申请日：1988-11-14

    申请人： Michael R. Mahoney ,  Wayne H. Nieman ,  Douglas J. McDowell ,  Virginia Krapil

    发明人： Michael R. Mahoney ,  Wayne H. Nieman ,  Douglas J. McDowell ,  Virginia Krapil

    IPC分类号： A61M16/20

    CPC分类号： A61M16/20 ,  A61M16/205 ,  A61M16/206 ,  A61M2205/6045

    摘要： A valve for the expiratory tubing of a ventilator circuit. The valve assembly includes a valve body, diaphragm, top cap and control tubing. The valve body includes a valve seat, annular surface, sealing ribs, along with other annular members. The diaphragm includes a thick center portion, connected by a thin web to a relatively thick annular rim and surrounding flange. The top cap includes a compression ring which clamps the diaphragm annular flange to the valve annular surface. In the valve open position, the valve body supports the diaphragm only at the diaphragm flange.

    摘要翻译： 呼吸机电路呼气管的阀门。 阀组件包括阀体，隔膜，顶盖和控制管。 阀体包括阀座，环形表面，密封肋以及其它环形构件。 隔膜包括厚的中心部分，其通过薄腹板连接到相对厚的环形边缘和周围的凸缘。 顶盖包括将隔膜环形凸缘夹紧到阀环表面的压缩环。 在阀打开位置，阀体仅在隔膜法兰上支撑隔膜。

    Vacuum system for auto transfusion device
    8.
    发明授权
    Vacuum system for auto transfusion device 失效
    用于自动转印装置的真空系统

    公开(公告)号：US5149325A

    公开(公告)日：1992-09-22

    申请号：US660491

    申请日：1991-02-25

    申请人： Anil M. Telang ,  Douglas J. McDowell

    发明人： Anil M. Telang ,  Douglas J. McDowell

    IPC分类号： A61M27/00 ,  A61G7/05 ,  A61M1/00

    CPC分类号： A61M1/0013 ,  A61G7/0503 ,  A61M1/0056 ,  A61M2202/0492 ,  A61M2209/082

    摘要： A system is described for the collection and re-infusion of fluids from a patient. The system includes a non-disposable rigid cannister and a disposable flexible liner that is placed in the cannister. Fluids are collected from a patient in the cannister liner. The liner is then removed from the cannister and the contents are re-infused back into a patient. The system is unique in that it provides a stand along vacuum means for continuously providing a relatively high vacuum to the cannister and a relatively low vacuum inside the liner to cause the liner to expand against the walls of the cannister. The stand alone vacuum means also provides a consistent relatively low vacuum to a patient's cavity for collecting fluids from the patient without damaging the patient's internal organs.

    摘要翻译： 描述了用于从患者收集和重新输注流体的系统。 该系统包括非一次性刚性罐和放置在罐中的一次性柔性衬里。 从罐筒内的患者收集流体。 然后从罐中取出衬里，将内容物重新注入患者体内。 该系统是独特的，因为它提供了一种沿着真空装置的支架，用于连续地向罐提供相对较高的真空度，并且在衬套内部具有相对较低的真空度，以使衬套相对于罐的壁膨胀。 独立的真空装置还为患者的腔提供一致的相对低的真空，用于从患者收集流体而不损坏患者的内部器官。