Enhanced thermal and ignition stability azide gas generant
    1.
    发明授权
    Enhanced thermal and ignition stability azide gas generant 失效
    增强热和点火稳定性气体发生器

    公开(公告)号:US5223184A

    公开(公告)日:1993-06-29

    申请号:US651157

    申请日:1991-02-06

    IPC分类号: C06B35/00 C06D5/06

    CPC分类号: C06B35/00 C06D5/06

    摘要: Multiple processes and apparatuses for improving the prior system of making gas generant pellets or tablets made of sodium azide, molybdenum disulfide and sulfur wherein powdered ingredients thereof are slurried in water, subjected to wet grinding, spray dried to a powdered material which is molded into pellets or tablets which find use in vehicle crash bags or inflators.The first improvement to the old process and apparatus involves adjusting the basicity of the water to a pH of greater than 8.0 up to about 12.5 via the addition of sodium hydroxide, followed by the addition of sulfur and molybdenum disulfide and finally the sodium azide whereby azide addition is made to a basic mixture of the other ingredients thereby keeping hydrazoic acid concentration levels below about 3.times.10EXP(-3) moles per liter.The second improvement to the old process and apparatus involves (1) softening the water before its use in slurrying the powdered ingredients to remove undesirable Ca and Mg ions and/or (2) adding sodium sulfide and/or tri-sodium phosphate to the slurry to precipitate any remaining undesirable Ca, Mg, Pb, Fe, Mn and Cu ions as non-hazardous compounds. Each of these metal ions is reduced to no more than about 25 ppm or less.Also these two improvements are joined together to form a system wherein even better safety results occur.The improvements not only extend to the final product produced, but to the intermediates at the slurry stage as well as at the spray dried stage, which products differ due to significant elimination or minimization of hydrazoic acid and other contaminant metal ion species above mentioned.

    摘要翻译: 用于改进制备由叠氮化钠,二硫化钼和硫磺制成的气体发生剂颗粒或片剂的先前系统的多种方法和装置,其中将粉末成分在水中成浆,经湿磨后,喷雾干燥成粉末状物料, 或用于车辆碰撞袋或充气器的片剂。 对旧方法和装置的第一改进包括通过加入氢氧化钠将水的碱度调节至大于8.0至约12.5的pH,然后加入硫和二硫化钼,最后加入叠氮化钠,由此叠氮化物 加入其他成分的碱性混合物,从而保持浓氢酸浓度低于每升约3×10 6 P(-3)摩尔。 对旧方法和装置的第二改进包括(1)在使用之前软化水,以粉碎粉末成分以除去不需要的Ca和Mg离子和/或(2)向浆料中加入硫化钠和/或三磷酸钠 以沉淀任何残留的不合需要的Ca,Mg,Pb,Fe,Mn和Cu离子作为无害化合物。 这些金属离子中的每一种都被还原成不超过约25ppm或更少。 而且,这两个改进措施被连接在一起以形成其中发生甚至更好的安全结果的系统。 这些改进不仅延伸到所生产的最终产品,而且延伸到浆料阶段的中间体以及在喷雾干燥阶段,由于显着消除或最小化上述的叠氮酸和其它污染金属离子物质,这些产物不同。

    Process for making an enhanced thermal and ignition stability azide gas
generant
    2.
    发明授权
    Process for making an enhanced thermal and ignition stability azide gas generant 失效
    制备增强的热稳定性和点火稳定性的叠氮化物气体发生剂的方法

    公开(公告)号:US5019220A

    公开(公告)日:1991-05-28

    申请号:US563772

    申请日:1990-08-06

    CPC分类号: C06B35/00 C06D5/06

    摘要: Multiple processes and apparatuses for improving the prior system of making gas generant pellets or tablets made of sodium azide, molybdenum disulfide and sulfur wherein powdered ingredients thereof are slurried in water, subjected to wet grinding, spray dried to a powdered material which is molded into pellets or tablets which find use in vehicle crash bags or inflators.The first improvement to the old process and apparatus involves adjusting the basicity of the water to a pH of greater than 8.0 up to about 12.5 via the addition of sodium hydroxide, followed by the addition of sulfur and molybdenum disulfide and finally the sodium azide whereby azide addition is made to a basic mixture of the other ingredients thereby keeping hydrazoic acid concentration levels below about 3.times.10EXP(-3) moles per liter.The second improvement to the old process and apparatus involves (1) softening the water before its use in slurrying the powdered ingredients to remove undesirable Ca and Mg ions and/or (2) adding sodium sulfide and/or tri-sodium phosphate to the slurry to precipitate any remaining undesirable Ca, Mg, Pb, Fe, Mn and Cu ions as non-hazardous compounds. Each of these metal ions is reduced to no more about 25 ppm or less.Also these two improvements are joined together to form a system wherein even better safety results occur.The improvements not only extend to the final product produced, but to the intermediates at the slurry stage as well as at the spray dried state, which products differ due to significant elimination or minimization of hydrazoic acid and other contaminant metal ion species above mentioned.

    Enhanced thermal and ignition stability azide gas generant intermediates
    3.
    发明授权
    Enhanced thermal and ignition stability azide gas generant intermediates 失效
    增强热稳定性和点火稳定性叠氮化物气体发生剂中间体

    公开(公告)号:US5437229A

    公开(公告)日:1995-08-01

    申请号:US19948

    申请日:1993-04-08

    IPC分类号: C06B35/00 C06D5/06 C06B45/00

    CPC分类号: C06B35/00 C06D5/06

    摘要: Slurry and spray dried azide-based gas generant intermediates are made having a hydrazoic acid content of less than about 3.times.10 EXP(-3) M/L, a pH of greater than 8.0 up to about 12.5, and impurity metal ions Ca, Mg, Pb, Fe, Mn and Cu, each below about 25 ppm. These intermediates are made by slurrying powdered ingredients of the azide and oxidizer/reactant in water, wet grinding the slurry and spray drying to form a particulate material which is molded into pellets or tablets which are useful as the gas generant in vehicle crash bags or inflators. The basicity of the water is adjusted to a pH of greater than 8.0 up to about 12.5, preferably about 10, by the addition of a base, such as NaOH, followed by the addition of such solid ingredients as S, MoS.sub.2 and NaN.sub.3, and preferably the NaN.sub.3 is added last, whereby hydrazoic acid production is minimized. The contaminant Ca and Mg ions are minimized by softening the water supplied. Impurity ions are also minimized by being precipitated as non-hazardous compounds by adding such agents as sodium sulfide and tri-sodium phosphate to the slurry. Impurities in the MoS.sub.2 feed may be further minimized by chemical leaching purification.

    摘要翻译: 制备浆料和喷雾干燥的叠氮化物气体发生剂中间体,其具有小于约3×10 3 EXP(-3)M / L,大于8.0至12.5的pH,以及杂质金属离子Ca,Mg, Pb,Fe,Mn和Cu,各自低于约25ppm。 这些中间体通过将叠氮化物和氧化剂/反应物的粉末成分在水中制浆,湿磨研磨浆料并喷雾干燥以形成颗粒材料,其被制成丸粒或片剂,其可用作车辆碰撞袋或充气器中的气体发生剂 。 通过加入碱如NaOH将水的碱度调节至大于8.0至约12.5,优选约10的pH,然后加入诸如S,MoS 2和NaN 3的固体成分,以及 优选最后添加NaN 3,由此使产氢量最小化。 通过软化所供应的水使污染物Ca和Mg离子最小化。 通过向浆料中加入硫化钠和三磷酸钠等试剂,通过作为无害化合物的沉淀也使杂质离子最小化。 通过化学浸出净化可以进一步减少MoS2进料中的杂质。

    Binder matrix for gas generants and related compositions and methods
    4.
    发明授权
    Binder matrix for gas generants and related compositions and methods 失效
    用于气体发生剂的粘合剂基质及相关组合物和方法

    公开(公告)号:US06689236B1

    公开(公告)日:2004-02-10

    申请号:US10393126

    申请日:2003-03-20

    IPC分类号: C06B4510

    CPC分类号: C06D5/06 C06B25/34 C06B45/10

    摘要: A binder matrix suitable for use in a gas generant composition, a gas generant composition including the binder matrix, and a related method of igniting such a gas generant composition are provided. The binder matrix includes a non-energetic binder material and dimethyl malonate non-energetic plasticizer and has a softening temperature above at least about 125° C. A gas generant composition including the binder matrix includes a non-energetic binder material such as cellulose acetate, dimethyl malonate non-energetic plasticizer, a fuel such as a nitramine fuel such as RDX, HMX or a combination thereof, and a stabilizer such as N-methyl-p-nitroaniline.

    摘要翻译: 提供适用于气体发生剂组合物的粘合剂基质,包含粘合剂基质的气体发生剂组合物和点燃这种气体发生剂组合物的相关方法。 粘合剂基质包括非能量粘合剂材料和丙二酸二甲酯非能量增塑剂,并且具有高于至少约125℃的软化温度。包含粘合剂基质的气体发生剂组合物包括不含能的粘合剂材料,例如醋酸纤维素, 丙二酸二甲酯无能增塑剂,诸如RDX,HMX等硝胺燃料的燃料或其组合,以及N-甲基对硝基苯胺等稳定剂。

    Cyclonic dirt separation module
    5.
    发明授权
    Cyclonic dirt separation module 有权
    旋风污垢分离模块

    公开(公告)号:US07247181B2

    公开(公告)日:2007-07-24

    申请号:US10904689

    申请日:2004-11-23

    IPC分类号: B01D45/12

    摘要: The invention relates to dirt separator module comprising a dirt-separation housing having an inlet and an outlet opening and defining a cyclonic airflow separator, and a suction source fluidly connected with the dirt-separation housing. A separator plate and a cylindrical wall of the dirt-separation housing form a toroidal cyclonic airflow chamber in the dirt-separator for aiding in the separation of dirt from a suction airstream developed by the suction source. The separator plate has an outer diameter smaller than the inner diameter of the cylindrical wall of the dirt-separation housing, creating a gap between the outer edge of the separator plate and the inner wall of the dirt tank. A further embodiment includes dual cyclonic separators fluidly connected through a filter assembly. A further embodiment includes a cyclonic separator in the form of a tangential helical ramp.

    摘要翻译: 本发明涉及污垢分离器模块,其包括具有入口和出口开口并限定旋风气流分离器的污物分离壳体,以及与污物分离壳体流体连接的抽吸源。 污物分离壳体的分隔板和圆柱形壁在污物分离器中形成环形旋风气流室,用于帮助将灰尘与由吸入源产生的吸入气流分离。 分隔板的外径小于污物分离壳体的圆筒壁的内径,在隔板的外边缘和污物箱的内壁之间产生间隙。 另一实施例包括通过过滤器组件流体连接的双气旋分离器。 另一实施例包括切向螺旋斜坡形式的旋风分离器。

    Baby wipes warmer for maintaining moisture and coloration of baby wipes contained therein
    6.
    发明授权
    Baby wipes warmer for maintaining moisture and coloration of baby wipes contained therein 有权
    婴儿湿巾保暖,以保持其中所含的婴儿湿巾的潮湿和着色

    公开(公告)号:US06847011B2

    公开(公告)日:2005-01-25

    申请号:US10695270

    申请日:2003-10-28

    CPC分类号: A47K10/421 A47K2010/3293

    摘要: There is provided a baby wipes warmer comprising a housing which defines an upper housing wall. It also comprises a liquid tank assembly that has an upper tank surface defining at least one vapor aperture therethrough. The tank assembly is disposed within the housing in a manner as to form an inside compartment between the upper housing wall and the upper tank surface. The warmer further comprises a heating element which is disposed within the housing to provide heat to the tank assembly. In this regard, a portion of liquid within the tank assembly transitions into vapors when heated by the heating element and flow to the inside compartment through the vapor aperture(s). By providing the vapors, the moisture and coloration of the baby wipes supported therein can be maintained while warming them.

    摘要翻译: 提供了一种婴儿擦拭保暖器,其包括限定上壳体壁的壳体。 它还包括具有限定穿过其中的至少一个蒸气孔的上罐表面的液体箱组件。 油箱组件以在上壳体和上油箱表面之间形成内部隔室的方式设置在壳体内。 加热器还包括加热元件,其设置在壳体内以向罐组件提供热量。 在这方面,当由加热元件加热时,罐组件内的一部分液体转变成蒸气并通过蒸气孔流动到内部室。 通过提供蒸气,可以保持其中支持的婴儿湿巾的湿气和着色,同时加热它们。

    System and method of performing soft hand-off with one-dimensional AESA
    7.
    发明授权
    System and method of performing soft hand-off with one-dimensional AESA 有权
    用一维AESA执行软切换的系统和方法

    公开(公告)号:US6151496A

    公开(公告)日:2000-11-21

    申请号:US177754

    申请日:1998-10-22

    摘要: A method of performing a soft hand-off between a first and second satellite traveling on first and second orbiting paths with an one-dimensional active electronically scanned array includes tracking and communicating with a first satellite orbiting in a first orbiting path. A scan plane of the array is then mechanically positioned and aligned so that the scan plane intersects both the first and second orbiting paths of the first and second satellites. The array continues to track and communicate with the first satellite until the first satellite is nearing a predetermined scan limit of the active electronically scanned array. The array is then operated to scan and acquire the second satellite, and establish communications therewith. Tracking and communications with the first satellite is then discontinued.

    摘要翻译: 在具有一维有源电子扫描阵列的第一和第二轨道上行进的第一和第二卫星之间执行软越区切换的方法包括跟踪和与在第一轨道上轨道运行的第一卫星通信。 然后将阵列的扫描平面机械地定位和对准,使得扫描平面与第一和第二卫星的第一和第二轨道相交。 该阵列继续跟踪并与第一卫星通信,直到第一卫星接近有源电子扫描阵列的预定扫描限制。 然后操作该阵列以扫描并获取第二卫星,并与其建立通信。 然后停止与第一颗卫星的跟踪和通信。

    Vacuum cleaner
    8.
    发明授权
    Vacuum cleaner 失效
    吸尘器

    公开(公告)号:US5337443A

    公开(公告)日:1994-08-16

    申请号:US917820

    申请日:1992-07-21

    IPC分类号: A47L5/24

    CPC分类号: A47L5/225 A47L5/24

    摘要: A vacuum cleaner convertible between a hand-held vacuum and a stick-type vacuum including a housing having a rondure first end and narrowing to a generally oblate, low profile nozzle at a second end, defining an opening in fluid communication with an interior of the housing. A releasably extensible dirt cup is slidably disposed within the opening in the second end and adapted to move between a retracted position within the housing and an extended position from said housing. The free end of the dirt cup is adapted to detachably retain a floor cleaning tool having a pivoting cleaning head for use on floors or other surfaces to be cleaned. The housing contains means for drawing high velocity air into the elongate dirt cup through the floor cleaning tool and/or free end of the elongate dirt cup so as to entrain dirt and debris and capture it within the dirt cup. The dirt cup is cleaned by withdrawing it from the end of the nozzle and removing the spun-bonded filter assembly before pouring the dirt cup contents into a separate container. The low profile housing, together with the extensible dirt cup and detachable floor cleaning tool, easily adapts to a variety of cleaning needs while simultaneously providing a lightweight and ergonomically balanced cleaning tool.

    摘要翻译: 真空吸尘器可在手持式真空和棒式真空器之间转换,该吸尘器包括具有倾斜第一端的壳体,并且在第二端处变窄至大致扁平的低轮廓喷嘴,限定与该内部的流体连通的开口 住房。 可释放地延伸的污物杯可滑动地设置在第二端的开口内并适于在壳体内的缩回位置和从所述壳体延伸的位置之间移动。 污物杯的自由端适于可拆卸地保持具有枢转清洁头的地板清洁工具,以用于待清洁的地板或其它表面。 壳体包含用于通过地板清洁工具和/或细长的污垢杯的自由端将高速空气吸入细长的污物杯中的装置,以便夹带污物和碎屑并将其捕获在污物杯内。 将污垢杯从喷嘴的端部取出,并在将污垢杯内容物倒入分开的容器中之前取出纺粘过滤器组件进行清洁。 薄型外壳以及可扩展的防尘罩和可拆卸的地板清洁工具,可轻松适应各种清洁需求,同时提供轻便且符合人体工程学的平衡清洁工具。

    Method for dispensing liquids with a pipette with compensation for air
pressure and surface tension
    9.
    发明授权
    Method for dispensing liquids with a pipette with compensation for air pressure and surface tension 失效
    用移液管分配液体的方法,补偿空气压力和表面张力

    公开(公告)号:US5187990A

    公开(公告)日:1993-02-23

    申请号:US869843

    申请日:1992-04-16

    IPC分类号: B01L3/02

    摘要: A hand held self-contained automated pipette for portable operation having an electrically operated digital linear actuator. The actuator preferably includes a stepper motor driving a rotor. A threaded screw is coaxially positioned within the rotor and is connected to an actuator shaft having elongate grooves slidable in a guide for preventing shaft rotation so that precise linear motion is imparted to the shaft. A pipetting displacement assembly having one of various sizes is removably attached for actuation by a common actuator including programmed movement of a displacing piston in a displacement cylinder to optimize air interface volume, neutralize variations in vacuum pipette effects, and provide an accommodated stroke and readout for improved accuracy while pipetting and/or titrating different ranges of volumes. Upon calibration the piston undertakes immediate excursion to an end of travel limit and after motor slippage is retracted to a home position. This home position is chosen for optimum preservation of an air interface volume between drawn liquid and the piston tailored with particularity to the displacement assembly being used. Multiple precision modes, including pipetting, multiple dispensing, titration, dilution, and measurement, are provided.

    摘要翻译: 手持式独立自动移液器,用于便携式操作,具有电动数字线性致动器。 致动器优选地包括驱动转子的步进马达。 螺纹螺杆同轴地定位在转子内并且连接到致动器轴,致动器轴具有可在引导件中滑动的细长槽,用于防止轴旋转,从而将准确的线性运动施加到轴上。 具有各种尺寸之一的移液装置可移除地附接以用于通过公共致动器进行致动,该执行器包括位移缸中的置换活塞的编程移动,以优化空气界面体积,中和真空吸管效应的变化,并提供容纳的行程和读数 在吸取和/或滴定不同体积范围时提高准确度。 在校准后,活塞立即偏移到行程极限结束,并且电机滑动回缩到原始位置。 选择该起始位置是为了最佳地保持拉伸液体和活塞之间的空气界面体积,特别适用于所使用的位移组件。 提供了多种精确模式,包括移液,多次分配,滴定,稀释和测量。

    Foldable infant carrier
    10.
    发明授权
    Foldable infant carrier 失效
    可折叠婴儿背带

    公开(公告)号:US4335893A

    公开(公告)日:1982-06-22

    申请号:US79833

    申请日:1979-09-28

    IPC分类号: B62B7/08 B62B9/20

    摘要: An infant carrier foldable along a central plane is presented. The carrier comprises a frame and seat assembly foldable along the central plane and lockable in the open position. A unique trigger mechanism is provided which locks the carrier in the open position and provides a handle for adjusting the seat position and for folding the carrier.

    摘要翻译: 呈现沿中心平面可折叠的婴儿背带。 托架包括可沿着中心平面折叠并可锁定在打开位置的框架和座椅组件。 提供了一种独特的触发机构,其将托架锁定在打开位置,并提供用于调节座椅位置并折叠托架的手柄。