Flexible coating for magnetic resonance imaging compatible invasive
devices
    21.
    发明授权
    Flexible coating for magnetic resonance imaging compatible invasive devices 失效
    灵敏涂层用于磁共振成像兼容的侵入性装置

    公开(公告)号:US5290266A

    公开(公告)日:1994-03-01

    申请号:US929350

    申请日:1992-08-14

    摘要: Invasive devices, such as laser fiber guides and biopsy needles, constructed of a material which exhibits little or no magnetic susceptibility, have a flexible polymer coating for retaining pieces of the device in the event of a fracture of the invasive device. The polymer coating also allows removal of the pieces of a fractured invasive device from the body of a subject without requiring surgery. The surgical instruments can be used inside a magnetic field during magnetic resonance (MR) imaging, thereby allowing interactive internal images to be produced and displayed to a surgeon during surgery. Since the invasive devices exhibit low susceptibility, they do not distort a created MR image.

    摘要翻译: 诸如激光纤维引导件和活检针由表现出很少或不具有磁化率的材料构成的侵入性装置具有柔性聚合物涂层,用于在侵入性装置断裂的情况下保持装置的片。 聚合物涂层还允许从受试者的身体中去除骨折的侵入性装置的碎片,而不需要手术。 手术器械可以在磁共振(MR)成像期间的磁场内使用,从而允许交互式内部图像在外科手术期间产生并显示给外科医生。 由于侵入性装置表现出低的敏感性,它们不会使所产生的MR图像失真。

    Passive cooling device for extending battery life
    22.
    发明授权
    Passive cooling device for extending battery life 失效
    被动冷却装置延长电池寿命

    公开(公告)号:US5173378A

    公开(公告)日:1992-12-22

    申请号:US699085

    申请日:1991-05-13

    IPC分类号: H01M10/50

    摘要: A battery exposed to heating from incident sunlight is cooled by rejecting heat to air drawn through a chimney by the heating of at least portions of the chimney by the incident sunlight. The battery is placed within the chimney so that the air flow in the chimney passes around the battery, enabling heat to be transferred directly from the battery to the air. Air flow in the chimney is generated by sunlight incident on the exterior of the chimney, causing heating of air within at least a portion of the chimney to create a natural convective air flow within the chimney, with relatively cool outside ambient air being drawn in at one end of the chimney and heated air being exhausted out the other end of the chimney.

    摘要翻译: 暴露于来自入射的阳光的加热的电池通过由入射的太阳光加热至少部分烟囱来排除通过烟囱吸入的空气的热量来冷却。 将电池放置在烟囱内,使得烟囱中的空气流通过电池,使热能够从电池直接传输到空气中。 烟囱中的气流由入射到烟囱外部的阳光产生,导致烟囱的至少一部分内的空气的加热,以在烟囱内产生自然的对流空气流,其中相对较冷的外部环境空气被吸入 烟囱的一端和加热的空气被排出烟囱的另一端。

    Method for producing lamp filaments of increased radiative efficiency
    23.
    发明授权
    Method for producing lamp filaments of increased radiative efficiency 失效
    提高辐射效率的灯丝生产方法

    公开(公告)号:US5152870A

    公开(公告)日:1992-10-06

    申请号:US644137

    申请日:1991-01-22

    IPC分类号: H01K1/14 H01K3/02 H01K3/04

    CPC分类号: H01K1/14 H01K3/02 H01K3/04

    摘要: A method for fabricating incandescent lamp filaments having surface features of submicron-to-micron sized cross sections which increase the radiative efficiency of the filament comprises depositing at least one enveloping mask layer on the filament and cutting a selected pattern into the filament by ablation with a beam of radiated energy. The desired surface features are formed on the filament by a process that includes stenciling through the selected pattern.

    摘要翻译: 一种用于制造具有亚微米至微米尺寸横截面的表面特征的白炽灯丝的方法,其增加了长丝的辐射效率,其包括在灯丝上沉积至少一个包络掩模层,并通过烧蚀将所选择的图案切割成细丝 辐射能束。 所需的表面特征通过包括通过所选择的图案模版的工艺在丝上形成。

    Passive cooling device for extending battery life
    24.
    发明授权
    Passive cooling device for extending battery life 失效
    被动冷却装置延长电池寿命

    公开(公告)号:US5035964A

    公开(公告)日:1991-07-30

    申请号:US444338

    申请日:1989-12-01

    IPC分类号: H01M10/50

    摘要: An electrical-energy-supplying device having an extended storage life includes a finned heat sink; a battery for supplying electrical energy is thermally connected to the finned heat sink by a copper or aluminum bar for transferring heat from the battery to the heat sink. The heat sink is enclosed in a chimney structure which has an air inlet in a lower portion and an outlet in an upper portion thereof. The chimney lower portion has a heat and light absorbing coating which causes air to flow in a path between the air inlet and outlet by convention. The heat sink is positioned in the air flow path the facilitate heat dissipation from the sink to the atmosphere. The storage life of the battery may be extended by maintaining the battery temperature below a selected temperature level.

    摘要翻译: 具有延长储存寿命的电能供应装置包括翅片散热器; 用于提供电能的电池通过用于将热量从电池传递到散热器的铜或铝棒热连接到翅片散热器。 散热器被封闭在烟囱结构中,该烟囱结构在下部具有空气入口,在其上部具有出口。 烟囱下部具有热和光吸收涂层,其通过惯例使空气在空气入口和出口之间的路径中流动。 散热器位于空气流动路径中,便于从水槽到大气的散热。 可以通过将电池温度维持在选定的温度水平以下来延长电池的储存寿命。

    Tubular varistor arrangement
    25.
    发明授权
    Tubular varistor arrangement 失效
    管状变阻器布置

    公开(公告)号:US4638284A

    公开(公告)日:1987-01-20

    申请号:US678726

    申请日:1984-12-05

    IPC分类号: H01C7/10 H01C7/12 H01R13/53

    CPC分类号: H01C7/12 H01R13/53

    摘要: A tubular varistor arrangement, particularly suitable for use in electrical connectors of circular cross-section, attains an electrical breakdown voltage equalling the cumulation of the breakdown voltages of multiple varistor sections of the arrangement. The varistor arrangement includes a plurality of tubular varistor sections that are interconnected in electrical serial relationship.

    摘要翻译: 特别适用于圆形横截面的电连接器的管状变阻器装置获得等于该装置的多个变阻器部分的击穿电压的累积的电击穿电压。 压敏电阻装置包括以电串联方式互连的多个管状变阻器部分。

    Self-registered, thermal processing technique using a pulsed heat source
    26.
    发明授权
    Self-registered, thermal processing technique using a pulsed heat source 失效
    使用脉冲热源的自我注册的热处理技术

    公开(公告)号:US4615765A

    公开(公告)日:1986-10-07

    申请号:US697376

    申请日:1985-02-01

    CPC分类号: H01L21/2636 H01L21/268

    摘要: Thermal processing of selected areas of a workpiece, such as a semiconductor device, is implemented without a photolithographic masking step. This is achieved through the use of a pulse-mode source of heat energy, such as a laser or a particle beam source, the heat radiation of which is applied in blanket fashion to a workpiece. Selective heating of workpiece areas to be thermally processed is attained through appropriate selection of energy, pulse duration, and pulse interval operating parameters of the heat source. Specifically, the appropriate selection of heat energy defines which areas of a workpiece are to be selectively heated, while the appropriate selection of heat energy pulse duration and heat energy pulse interval minimizes stray heat transfer to non-selected areas of the workpiece.

    摘要翻译: 在没有光刻掩模步骤的情况下实现诸如半导体器件的工件的选定区域的热处理。 这是通过使用诸如激光或粒子束源的脉冲模式热能源来实现的,其辐射被以毯子的方式施加到工件。 通过适当选择热源的能量,脉冲持续时间和脉冲间隔操作参数来获得要热处理的工件区域的选择性加热。 具体地说,合适的热能选择定义了工件的哪些区域被选择性地加热,同时适当地选择热能脉冲持续时间和热能脉冲间隔将杂散热传递最小化到工件的非选择区域。

    Varistors with controllable voltage versus time response
    27.
    发明授权
    Varistors with controllable voltage versus time response 失效
    压敏电阻具有可控电压对时间响应

    公开(公告)号:US4397775A

    公开(公告)日:1983-08-09

    申请号:US269225

    申请日:1981-06-01

    IPC分类号: H01C7/112 H01B1/06

    CPC分类号: H01C7/112

    摘要: A bismuth-free, zinc oxide based varistor exhibits a controllable overshoot/undershoot voltage characteristic. The varistor is composed of zinc oxide as the primary constituent, with smaller quantities of barium, boron, one or more transition elements and aluminum. Varistor voltage versus time response is dependent on the degree of aluminum doping. Typically, more than approximately 0.003 mole percent, but less than approximately 0.1 mole percent aluminum is employed, depending on desired voltage overshoot/undershoot characteristic.

    摘要翻译: 无铋氧化锌基变阻器具有可控的过冲/下冲电压特性。 变阻器由氧化锌作为主要成分,较少量的钡,硼,一种或多种过渡元素和铝构成。 压敏电阻电压对时间响应取决于铝掺杂的程度。 通常,取决于所需的电压过冲/下冲特性,使用大于约0.003摩尔%但小于约0.1摩尔%的铝。

    Uniform angular light distribution from LEDs
    28.
    发明授权
    Uniform angular light distribution from LEDs 有权
    来自LED的均匀角度光分布

    公开(公告)号:US06653765B1

    公开(公告)日:2003-11-25

    申请号:US09550769

    申请日:2000-04-17

    IPC分类号: H01J162

    摘要: A light source (10) includes a light emitting component (32), such as a UV/blue light emitting diode or laser diode, a layer (46) of a light scattering material (42), and a layer (48) of a phosphor material (44). The phosphor material converts a portion of the light emitted by the light emitting component to light of a longer wavelength, such as yellow light. The scattering material scatters the light emitted by the light emitting component and/or the light converted by the phosphor to improve the overall uniformity of the angular distribution of the light. When combined, the converted and scattered light has a more uniform angular distribution, that is, it maintains the approximately the same color as the viewing angle is changed.

    摘要翻译: 光源(10)包括诸如UV /蓝色发光二极管或激光二极管的发光部件(32),光散射材料(42)的层(46)和 磷光体材料(44)。 荧光体材料将由发光部件发射的光的一部分转换为较长波长的光,例如黄色光。 散射材料散射由发光部件发射的光和/或由荧光体转换的光,以提高光的角度分布的总体均匀性。 当组合时,转换和散射的光具有更均匀的角度分布,即,其保持与视角改变的大致相同的颜色。

    Current limiting device
    29.
    发明授权
    Current limiting device 失效
    限流装置

    公开(公告)号:US5614881A

    公开(公告)日:1997-03-25

    申请号:US514076

    申请日:1995-08-11

    摘要: A current limiting device utilizing an electrically conductive composite material and an inhomogeneous distribution of resistance structure is disclosed. The inhomogeneous distribution is typically chosen so that at least one selected thin layer of the current limiting device has much higher resistance than the rest of the current limiting device. In the actual device, pressure is typically exerted on the composite material in a direction normal to the selected thin layer. During a short-circuit, it is believed that adiabatic resistive heating of this selected thin layer is followed by rapid thermal expansion which leads to either a partial or complete physical separation of the current limiting device at the selected thin layer which produces a higher over-all device resistance to electric current flow. Thus the current limiting device limits the flow of current through the short-circuited current path. When the short-circuit is cleared, the current limiting device regains its low resistance state allowing electrical current to flow normally. The current limiting of the present invention is reusable for many such short circuit conditions.

    摘要翻译: 公开了一种使用导电复合材料和电阻结构不均匀分布的限流装置。 通常选择不均匀分布,使得限流装置的至少一个选定的薄层比电流限制装置的其余部分具有高得多的电阻。 在实际的装置中,通常在垂直于所选薄层的方向上对复合材料施加压力。 在短路期间,相信该选择的薄层的绝热电阻加热之后是快速热膨胀,其导致在所选择的薄层处限流器件的部分或完全物理分离,其产生较高的过电压, 所有器件阻抗电流流动。 因此,限流装置限制了通过短路电流路径的电流流动。 当短路被清除时,限流装置恢复其低电阻状态,允许电流正常流动。 本发明的电流限制对于许多这样的短路条件是可重用的。

    Solid state thermal conversion of polycrystalline alumina to sapphire
using a seed crystal
    30.
    发明授权
    Solid state thermal conversion of polycrystalline alumina to sapphire using a seed crystal 失效
    使用晶种将多晶氧化铝固体热转化为蓝宝石

    公开(公告)号:US5549746A

    公开(公告)日:1996-08-27

    申请号:US126628

    申请日:1993-09-24

    IPC分类号: C30B1/02 C30B29/20 C30B33/02

    CPC分类号: C30B1/02 C30B29/20

    摘要: A solid state seed crystal process for bulk conversion of a polycrystalline ceramic body to a single crystal body (of the same chemical composition) having the same crystal orientation as the seed crystal. The process comprises heating said body to form a monolithic join between the body and the seed crystal, heating the joined structure to reduce grain growth inhibitors and further heating the joined structure above the minimum temperature required for crystallite growth of the crystalline material, but not hot enough to melt and distort the original shape of the polycrystalline ceramic body during its conversion to a single crystal. This process has been used to convert polycrystalline alumina (PCA) bodies to sapphire having the same crystal orientation as the seed crystal by heating the PCA body, monolithically joined to a sapphire seed crystal, at a temperature above 1700.degree. C. without melting the body.

    摘要翻译: 用于将多晶陶瓷体大量转化成具有与晶种相同的晶体取向的单晶体(相同的化学组成)的固态晶种方法。 该方法包括加热所述主体以在主体和晶种之间形成整体连接,加热接合的结构以减少晶粒生长抑制剂并进一步加热接合结构高于结晶材料微晶生长所需的最低温度,但不热 足以熔化和扭曲多晶陶瓷体在其转变成单晶时的原始形状。 已经使用该方法将多晶氧化铝(PCA)体转变为具有与晶种相同的晶体取向的蓝宝石,通过加热在1700℃以上的温度下单体连接到蓝宝石晶种的PCA体,而不熔化本体 。