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公开(公告)号：US4308309A
公开(公告)日：1981-12-29
申请号：US147700
申请日：1980-05-07
申请人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch , Daniel B. Leiser , David A. Stewart , Marnell Smith , Carlos A. Estrella , Howard E. Goldstein
发明人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch , Daniel B. Leiser , David A. Stewart , Marnell Smith , Carlos A. Estrella , Howard E. Goldstein
CPC分类号： B64G1/58 , F42B15/34 , B64G1/503 , Y10T428/166 , Y10T428/24777 , Y10T428/24785 , Y10T428/31663 , Y10T442/2631 , Y10T442/2975
摘要： A flexible, adjustable refractory filler (1) is disclosed for filling gaps between ceramic tiles (10, 11) forming the heat shield of a space shuttle vehicle, to protect its aluminum skin (20) during atmospheric re-entry. The easily installed and replaced filler (1) consists essentially of a strip of ceramic cloth (3) coated, at least along both its longitudinal edges (4, 5), with a room temperature vulcanizable silicone rubber compound with a high emittance colored pigment. The filler may have one or more layers (2, 3), as the gap width requires. Preferred materials are basket-weave aluminoborosilicate cloth, and a rubber compounded with silicon tetraboride as the emittance agent and finely divided borosilicate glass containing about 7.5% B.sub.2 O.sub.3 as high temperature binder. The filler cloth strip or tape is cut to proper width and length, inserted into the gap, and fastened with previously applied drops of silicone rubber adhesive.
摘要翻译： 公开了一种柔性可调节的耐火填料（1），用于填充形成航天飞行器的隔热罩的瓷砖（10,11）之间的间隙，以在大气重入期间保护其铝皮（20）。 容易安装和更换的填料（1）基本上由至少沿着其纵向边缘（4,5）涂覆的一块陶瓷布（3）组成，其中室温可硫化的硅橡胶化合物具有高发射率的着色颜料。 填料可以具有一个或多个层（2,3），如间隙宽度所要求的。 优选的材料是筐式编织的铝硼硅酸布，以及四硼化硅作为发射剂的橡胶和含有约7.5％B 2 O 3作为高温粘合剂的细碎的硼硅酸盐玻璃。 将填料布条或带切割成适当的宽度和长度，插入间隙中，并用预先施加的硅橡胶胶粘剂固定。
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公开(公告)号：US10141552B2
公开(公告)日：2018-11-27
申请号：US15367860
申请日：2016-12-02
申请人： David A. Stewart
发明人： David A. Stewart
IPC分类号： H01M2/10 , G03B17/02 , G03B29/00 , H01M10/0525 , F41C27/00
摘要： This invention relates to the protection system for battery current collectors in cameras mounted on a gun, bow, or shooting device. More particularly, the present invention relates to the system of protecting the current collectors from fracture in a camera attached to a gun barrel or shooting device as a result of recoil and shock and vibration during shooting device discharge.
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23.发明授权公开(公告)号：US07381459B1
公开(公告)日：2008-06-03
申请号：US10779504
申请日：2004-02-12
申请人： David A. Stewart , Daniel B. Leiser
发明人： David A. Stewart , Daniel B. Leiser
IPC分类号： B64G1/24
CPC分类号： C23C30/00 , C23C28/04 , Y10T428/24322 , Y10T428/24331 , Y10T428/24479 , Y10T428/24628
摘要： A composite thermal protection structure, for applications such as atmospheric re-entry vehicles, that can withstand temperatures as high as 3600° F. The structure includes an exposed surface cap having a specially formulated coating, an insulator base adjacent to the cap with another specially formulated coating, and one or more pins that extend from the cap through the insulator base to tie the cap and base together, through ceramic bonding and mechanical attachment. The cap and insulator base have corresponding depressions and projections that mate and allow for differences in thermal expansion of the cap and base.
摘要翻译： 一种复合热保护结构，适用于诸如大气重入车辆的应用，可承受高达3600°F的温度。该结构包括具有专门配制的涂层的暴露表面盖，与盖相邻的绝缘体基座 以及一个或多个销，其通过陶瓷粘合和机械附件从帽延伸穿过绝缘体基座以将盖和基部接合在一起。 帽和绝缘体基座具有相应的凹陷和突起，其配合并允许帽和基部的热膨胀差异。
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24.发明授权公开(公告)号：US07314648B1
公开(公告)日：2008-01-01
申请号：US10911747
申请日：2004-07-27
申请人： David A. Stewart , Daniel B. Leiser
发明人： David A. Stewart , Daniel B. Leiser
IPC分类号： B05D7/00
CPC分类号： C23C30/00 , C23C28/04 , Y10T428/24322 , Y10T428/24331 , Y10T428/24479 , Y10T428/24628
摘要： A composite thermal protection structure, for applications such as atmospheric re-entry vehicles, that can withstand temperatures as high as 3600° F. The structure includes an exposed surface cap having a specially formulated coating, an insulator base adjacent to the cap with another specially formulated coating, and one or more pins that extend from the cap through the insulator base to tie the cap and base together, through ceramic bonding and mechanical attachment. The cap and insulator base have corresponding depressions and projections that mate and allow for differences in thermal expansion of the cap and base. A thin coating of a reaction cured glass formulation is optionally provided on the structure to allow reduce oxidization and/or to reduce catalytic efficiency.
摘要翻译： 一种复合热保护结构，适用于诸如大气重入车辆的应用，可承受高达3600°F的温度。该结构包括具有专门配制的涂层的暴露表面盖，与盖相邻的绝缘体基座 以及一个或多个销，其通过陶瓷粘合和机械附件从帽延伸穿过绝缘体基座以将盖和基部接合在一起。 帽和绝缘体基座具有相应的凹陷和突起，其配合并允许帽和基部的热膨胀差异。 反应固化玻璃制剂的薄涂层任选地提供在结构上以允许减少氧化和/或降低催化效率。
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公开(公告)号：US5772154A
公开(公告)日：1998-06-30
申请号：US563418
申请日：1995-11-28
申请人： David A. Stewart
发明人： David A. Stewart
摘要： A heat shield for thermally insulating the leading edge of a wing of a spacecraft during ascent and reentry includes a plurality of rigid tiles. Each tile is formed with a pie-shaped element which interlocks with the complementarily-formed element of another tile. The combination of structure afforded by the pie-shaped elements substantially impedes hypersonic flow of any gases that might enter the gaps between tiles.
摘要翻译： 用于在上升和再入期间绝热飞行器翼的前缘的隔热罩包括多个刚性瓦片。 每个瓦片形成有与另一瓦片的互补形成元件互锁的饼形元件。 由饼形元件提供的结构的组合基本上阻止任何可能进入瓷砖间隙的气体的超音速流动。
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公开(公告)号：USRE35485E
公开(公告)日：1997-04-01
申请号：US302623
申请日：1994-09-08
申请人： David A. Stewart
发明人： David A. Stewart
CPC分类号： B60N2/015 , B60N2/005 , B60N2/06 , B60N2/0732 , Y10S248/911
摘要： A uni-brace mechanism is provided which allows a vehicle seat to be attached to the vehicle seat slide adjusters made by various manufacturers. A front bracket and a rear bracket are spaced apart and attached to the underside of a vehicle seat. Each bracket includes two pairs of receiving holes, with each receiving hole having at least one corresponding engagement hole spaced apart from the receiving hole. The various engagement holes combined to form various generally rectangular patterns, spaced at distances to correspond to the bolt patterns found on vehicle seat slide adjusters. A pal nut is inserted into a receiving hole and into engagement with the proper corresponding engagement hole. Pal nut includes a hub with an internal thread which is positioned within the engagement hole. The bolt on the vehicle seat slide adjuster are threaded through the engagement hole and into the hub, attaching the vehicle seat slide adjuster to the bracket.
摘要翻译： 提供了一种单臂机构，其允许车辆座椅附接到由各种制造商制造的车辆座椅滑块调节器。 前支架和后支架间隔开并连接到车辆座椅的下侧。 每个支架包括两对接收孔，每个接收孔具有与接收孔间隔开的至少一个对应的接合孔。 各种接合孔组合形成各种大致矩形的图案，间隔开距离以对应于在车辆座椅滑动调节器上发现的螺栓图案。 把手螺母插入到接收孔中并与适当的相应的接合孔接合。 盘形螺母包括具有位于接合孔内的内螺纹的轮毂。 车辆座椅滑块调节器上的螺栓穿过接合孔并进入轮毂，将车辆座椅滑块调节器连接到支架。
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公开(公告)号：US4797180A
公开(公告)日：1989-01-10
申请号：US58134
申请日：1987-06-04
IPC分类号： G01N27/49
CPC分类号： G01N27/4045
摘要： The present invention is for an electrochemical cell and method for quantitatively detecting noxious gas which comprises a first working electrode comprising a gas diffusion membrane having bonded thereto a catalytic portion electrochemically reactive with the noxious gas; a second working electrode having electrochemical activity with the oxidation/reduction products produced at the first working electrode; a counter electrode; a reference electrode; an electrolyte; means for containing said electrolyte and said electrodes; means for maintaining a fixed potential on said first working electrode relative to said reference electrode of from about 1.0 to 1.8 volts with respect to the potential of the reversible hydrogen couple of the electrolyte of the cell; and means for maintaining a fixed potential on said second working electrode relative to said reference electrode of from about 1.0 to 2.2 volts with respect to the potential of the reversible hydrogen couple of the electrolyte of the cell, the fixed potential on said working electrode being maintained at a voltage higher than the fixed potential being maintained on said first working electrode.
摘要翻译： 本发明涉及一种用于定量检测有害气体的电化学电池和方法，该电化学电池和方法包括：第一工作电极，包括具有与有毒气体电化学反应的催化部分结合的气体扩散膜; 具有在第一工作电极处产生的氧化/还原产物的电化学活性的第二工作电极; 对电极 参考电极; 电解液 用于容纳所述电解质和所述电极的装置; 相对于电池的电解质的可逆氢键的电位，使相对于所述参考电极在所述第一工作电极上保持固定电位为约1.0至1.8伏特的装置; 以及用于相对于所述电极的电解质的可逆氢键的电位将所述第二工作电极相对于所述参考电极维持固定电位为约1.0至2.2伏的装置，所述工作电极上的固定电位被维持 在比所述固定电位高的电压下保持在所述第一工作电极上。
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公开(公告)号：US3962645A
公开(公告)日：1976-06-08
申请号：US521460
申请日：1974-11-06
申请人： David A. Stewart
发明人： David A. Stewart
CPC分类号： H04W88/027 , H03G3/005 , H03G3/34 , H03G3/344
摘要： In some radio communication systems, a tone of selected frequency (usually below the voice frequency) is transmitted so as to activate only selected radio receivers in the system. Each of such radio receivers is provided with a circuit for detecting a selected tone frequency. The detecting circuit includes means for producing sequences of pulses at a rate N times higher than the selected tone frequency, so that each sequence contains one through N numbered pulses for each cycle of tone. A selected portion of each cycle of tone of desired frequency coincides with the same pulses of each sequence, and these coincidences produce vectors of the same angular phase (corresponding to the pulse numbers). If the sum of a plurality of such vector outputs exceeds a certain threshold level, an output signal is produced to indicate that the proper tone frequency is received, and this output signal can activate the receiver. The selected portion of each cycle of tone of undesired frequency causes coincidences with different pulse numbers in each sequence, and these coincidences produce vectors of different phases, so that the vector sum does not reach the needed threshold level for receiver activation.
摘要翻译： 在一些无线电通信系统中，传输选定频率（通常低于语音频率）的音调，以仅激活系统中选定的无线电接收机。 这些无线电接收机中的每一个设置有用于检测所选音调频率的电路。 检测电路包括以比所选择的音调频率高出N倍的速率产生脉冲序列的装置，使得每个序列对于每个音调循环都包含1到N个编号的脉冲。 期望频率的每个循环周期的选定部分与每个序列的相同脉冲一致，并且这些重合产生相同角度相位的矢量（对应于脉冲数）。 如果多个这样的矢量输出的和超过某个阈值电平，则产生输出信号以指示正确的频率被接收，并且该输出信号可以激活接收机。 每个不期望频率的每个循环周期的选定部分引起与每个序列中的不同脉冲数的一致性，并且这些重合产生不同相位的向量，使得矢量和不达到接收机激活所需的阈值电平。
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