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18 条记录 (耗时 0.036 秒)

    Cathodes for alumina reduction cells
    2.
    发明授权
    Cathodes for alumina reduction cells 失效
    氧化铝还原电池的阴极

    公开(公告)号：US4333813A

    公开(公告)日：1982-06-08

    申请号：US203559

    申请日：1980-11-05

    申请人： Howard I. Kaplan ,  Jerry H. Bryce ,  Thomas J. Johnston ,  Curtis J. McMinn ,  John T. Willett ,  Nolan E. Richards

    发明人： Howard I. Kaplan ,  Jerry H. Bryce ,  Thomas J. Johnston ,  Curtis J. McMinn ,  John T. Willett ,  Nolan E. Richards

    IPC分类号： B32B18/00 ,  C04B35/52 ,  C04B35/58 ,  C25C3/08 ,  B05D5/12 ,  B32B9/04

    CPC分类号： C04B35/58071 ,  B32B18/00 ,  C04B35/52 ,  C04B35/581 ,  C04B35/645 ,  C25C3/08 ,  C04B2237/36 ,  C04B2237/363 ,  C04B2237/704 ,  C04B2237/84 ,  Y10T428/2918 ,  Y10T428/30

    摘要： This invention concerns cathodes for alumina reduction cells, particularly drained cathodes, which present a refractory surface for contacting molten aluminum on the cell floor. This invention also concerns materials for constructing such cathodes.The cathodes described comprise a carbonaceous bed, preferably a graphite bed, and a composite tile. This tile is characterized by a layer of a refractory hard metal (RHM) material bonded to a base layer of a graphitic material, where the RHM layer comprises a hot pressed mixture of titanium diboride and aluminum nitride powders. The tile is further characterized by the bond between the RHM layer and the graphitic base layer, such bond having been produced simultaneously as the RHM layer is formed by hot pressing the mixture of titanium diboride and aluminum nitride powders directly against the graphitic base layer. The graphitic base layer is in turn bonded to the carbonaceous bed by means of a carbonaceous cement, and the RHM layer thereby provides a refractory surface for contacting molten aluminum.

    摘要翻译： 本发明涉及用于氧化铝还原电池的阴极，特别是排出的阴极，其呈现用于接触细胞层上的熔融铝的耐火表面。 本发明还涉及用于构造这种阴极的材料。 所描述的阴极包括碳质床，优选石墨床和复合瓦。 该瓦片的特征在于粘合到石墨材料的基底层的难熔硬金属（RHM）层，其中RHM层包括二硼化钛和氮化铝粉末的热压混合物。 该瓦片的特征还在于RHM层与石墨基层之间的结合，这种键已经通过将二硼化钛和氮化铝粉末的混合物直接压在石墨基层上而形成RHM层而同时生产。 石墨基层又通过含碳水泥结合到碳质床上，并且RHM层由此提供用于接触熔融铝的耐火表面。

    Back and stomach support device
    7.
    发明授权
    Back and stomach support device 失效
    背部和胃部支撑装置

    公开(公告)号：US5232424A

    公开(公告)日：1993-08-03

    申请号：US755995

    申请日：1991-09-06

    申请人： David P. Pearson ,  Thomas J. Johnston

    发明人： David P. Pearson ,  Thomas J. Johnston

    IPC分类号： A61F5/02

    CPC分类号： A61F5/028

    摘要： The back and stomach support device is utilizable by weightlifters, stevedors, etc., and includes an elongated flexible back strap with a resilient, flexible back cushion attached to the inner surface thereof. The back strap extends forwardly at the sides of the device and ends in opposed front loops through which the opposite ends of a front belt extend. To the inner surface of the front belt is connected a resilient, flexible stomach cushion. The front belt can be cinched tight by means of its opposite ends and be releasably held in place for example by hook-bearing strips and hook-receiving strips on the belt. The device encircles the waist and effectively supports both back and stomach to prevent muscle strain. The strap and belt are shorter in height than the cushions so that no pinching of the skin occurs during tightening. The opposite ends of the cushions may be tapered down for a similar reason and the cushions are short enough not to intercept each other. Preferably, they are of flexible foamed plastic, while the belt and strap are preferably of unfoamed flexible plastic. Detachable shoulder suspenders may be connected to the cushions and/or strap and belt to hold the device loosely in place when not needed.

    摘要翻译： 背部和胃部支撑装置可由举重运动器，装卸器等使用，并且包括细长的柔性背带，其具有附接到其内表面的弹性柔性背垫。 背带在装置的侧面向前延伸并且在相对的前环中终止，前带的相对端延伸穿过。 前腰带的内表面连接有弹性柔软的胃垫。 前带可以通过其相对端紧固，并且可释放地保持在适当位置，例如通过带上的钩状带和钩接收条。 该装置环绕腰部，有效地支撑背部和胃部，以防止肌肉紧张。 表带和皮带的高度要比垫子短，这样在收紧时就不会发生皮肤的夹紧。 由于类似的原因，垫子的相对端部可能会逐渐变细，并且垫子足够短，不能相互拦截。 优选地，它们是柔性泡沫塑料，而带和带优选地是未发泡的柔性塑料。 可拆卸的肩部吊带可以连接到垫子和/或皮带和皮带上，以便在不需要的时候松动地将装置保持在适当位置。

    Dual air particle sample cassette and methods for using same
    9.
    发明授权
    Dual air particle sample cassette and methods for using same 失效
    双空气颗粒样品盒及其使用方法

    公开(公告)号：US07574928B1

    公开(公告)日：2009-08-18

    申请号：US11606659

    申请日：2006-11-29

    申请人： Mark A. Cole ,  Thomas J. Johnston

    发明人： Mark A. Cole ,  Thomas J. Johnston

    IPC分类号： G01N1/003

    CPC分类号： G01N1/2208 ,  G01N1/2205 ,  G01N1/2273 ,  G01N15/0272 ,  G01N2001/2833

    摘要： An air particle sample cassette enables concurrent or sequential collection of air particle samples. The dual air particle sample cassette has top and bottom covers that fit together to provide an airtight seal between them. The airtight seal may be provided by adhesive or otherwise. However, a close fit between the two also aids in obtaining an airtight seal. The top cover has tapering inlets circumscribed by channels. The inlets taper to create increased air speed at the exit slit of the inlets. The inlets have rounded tops for greater collection of air and the circumscribing channels provide means by which plastic caps or otherwise may be used to protect the inlets from collecting air until desired. The sample plate or collecting slide is fitted to the bottom of the top cover and obstructs the direct flow of air to the exit port. The collecting slide is protected from contact with other cassette elements by spacers or sidewalls which generally leave the corners of the bottom cover open. The exit port enables the common application of vacuum pressure to draw air through the inlets. Different inlet characteristics or air speeds may serve to enable selection of size of the particle sampled. Filter elements may also be introduced upstream of the inlets to further select sample particle size.

    摘要翻译： 空气颗粒样品盒可以同时或顺序收集空气颗粒样品。 双空气颗粒样品盒具有顶盖和底盖，它们组合在一起，以在它们之间提供气密密封。 气密密封可以通过粘合剂或其他方式提供。 然而，两者之间的紧密配合也有助于获得气密密封。 顶盖具有由通道限定的锥形入口。 入口逐渐变细，以在入口的出口处产生增加的空气速度。 入口具有圆形顶部以用于更多的空气收集，并且外接通道提供了用于保护入口收集空气直至所需的塑料帽或其它方式的手段。 样品板或收集滑块安装在顶盖的底部，并阻碍空气直接流到出口。 通过间隙或侧壁保护收集滑块免受与其他盒式元件的接触，这些间隔件或侧壁通常会使底盖的拐角打开。 出口可实现真空压力的共同应用，以通过入口吸入空气。 不同的入口特性或空气速度可以用于选择所采集的颗粒的尺寸。 过滤元件也可以在入口的上游引入以进一步选择样品粒度。

    Dual air particle sample cassette
    10.
    发明授权
    Dual air particle sample cassette 失效
    双空气颗粒样品盒

    公开(公告)号：US07155988B2

    公开(公告)日：2007-01-02

    申请号：US10875095

    申请日：2004-06-22

    申请人： Mark A. Cole ,  Thomas J. Johnston

    发明人： Mark A. Cole ,  Thomas J. Johnston

    IPC分类号： G01N1/00

    CPC分类号： G01N1/2208 ,  G01N1/2205 ,  G01N1/2273 ,  G01N15/0272 ,  G01N2001/2833

    摘要： An air particle sample cassette enables concurrent or sequential collection of air particle samples. The dual air particle sample cassette has top and bottom covers that fit together to provide an airtight seal between them. The airtight seal may be provided by adhesive or otherwise. However, a close fit between the two also aids in obtaining an airtight seal. The top cover has tapering inlets circumscribed by channels. The inlets taper to create increased air speed at the exit slit of the inlets. The inlets have rounded tops for greater collection of air and the circumscribing channels provide means by which plastic caps or otherwise may be used to protect the inlets from collecting air until desired. The sample plate or collecting slide is fitted to the bottom of the top cover and obstructs the direct flow of air to the exit port. The collecting slide is protected from contact with other cassette elements by spacers or sidewalls which generally leave the corners of the bottom cover open. The exit port enables the common application of vacuum pressure to draw air through the inlets. Different inlet characteristics or air speeds may serve to enable selection of size of the particle sampled. Filter elements may also be introduced upstream of the inlets to further select sample particle size.

    摘要翻译： 空气颗粒样品盒可以同时或顺序收集空气颗粒样品。 双空气颗粒样品盒具有顶盖和底盖，它们组合在一起，以在它们之间提供气密密封。 气密密封可以通过粘合剂或其他方式提供。 然而，两者之间的紧密配合也有助于获得气密密封。 顶盖具有由通道限定的锥形入口。 入口逐渐变细，以在入口的出口处产生增加的空气速度。 入口具有圆形顶部以用于更多的空气收集，并且外接通道提供了用于保护入口收集空气直至所需的塑料帽或其它方式的手段。 样品板或收集滑块安装在顶盖的底部，并阻碍空气直接流到出口。 通过间隙或侧壁保护收集滑块免受与其他盒式元件的接触，这些间隔件或侧壁通常会使底盖的拐角打开。 出口可实现真空压力的共同应用，以通过入口吸入空气。 不同的入口特性或空气速度可以用于选择所采集的颗粒的尺寸。 过滤元件也可以在入口的上游引入以进一步选择样品粒度。