Ultrasonic flow meter
    21.
    发明授权
    Ultrasonic flow meter 有权
    超声波流量计

    公开(公告)号:US08700344B2

    公开(公告)日:2014-04-15

    申请号:US13090980

    申请日:2011-04-20

    申请人: Michael A. Wilson

    发明人: Michael A. Wilson

    IPC分类号: G01F1/66

    CPC分类号: G01F1/66 G01F1/667 G01F1/668

    摘要: A method and apparatus utilizing a pair of ultrasonic transducers simultaneously transmitting and receiving to measure the mean time of flight of an ultrasonic signal over a given distance, and thereby the speed of sound of a fluid in a conduit at a given temperature, independent of flow rate, and the flow rate of the fluid. A signal source simultaneously drives an upstream transducer and a downstream transducer, each of which receive the signal transmitted by the other. The difference between the upstream and downstream signals takes into account the speed of sound of the fluid. The time of flight for the upstream and downstream signals can then be used to calculate the flow rate. A phase locked loop coupled to the signal source automatically adjusts for variations of the speed of sound in the fluid in response to temperature changes.

    摘要翻译: 一种利用一对超声波换能器同时发送和接收以测量在给定距离上的超声波信号的平均飞行时间的方法和装置,从而在给定温度下导管中的流体的声速不依赖于流量 速率和流体的流速。 信号源同时驱动上游换能器和下游换能器,每个换能器和下游换能器接收由另一个传输的信号。 上游和下游信号之间的差异考虑了流体的声速。 然后可以使用上游和下游信号的飞行时间来计算流量。 耦合到信号源的锁相环响应于温度变化自动调节流体中的声速的变化。

    Ultrasonic Flow Meter
    22.
    发明申请
    Ultrasonic Flow Meter 有权
    超声波流量计

    公开(公告)号:US20120271568A1

    公开(公告)日:2012-10-25

    申请号:US13090980

    申请日:2011-04-20

    申请人: Michael A. Wilson

    发明人: Michael A. Wilson

    IPC分类号: G01F1/66

    CPC分类号: G01F1/66 G01F1/667 G01F1/668

    摘要: A method and apparatus utilizing a pair of ultrasonic transducers simultaneously transmitting and receiving to measure the mean time of flight of an ultrasonic signal over a given distance, and thereby the speed of sound of a fluid in a conduit at a given temperature, independent of flow rate, and the flow rate of the fluid. A signal source simultaneously drives an upstream transducer and a downstream transducer, each of which receive the signal transmitted by the other. The difference between the upstream and downstream signals is substantially invariant with rate of flow of the fluid, and measurement of parameters of this signal takes into account the speed of sound of the fluid. The time of flight for the upstream and downstream signals can then be used to calculate the flow rate. A phase locked loop providing feedback from the received signals to the signal source is utilized to maintain a predetermined number of cycles of the difference signal between the transducers, thereby automatically adjusting for variations of the speed of sound in the fluid in response to temperature changes.

    摘要翻译: 一种利用一对超声波换能器同时发送和接收以测量在给定距离上的超声波信号的平均飞行时间的方法和装置,从而在给定温度下导管中的流体的声速不依赖于流量 速率和流体的流速。 信号源同时驱动上游换能器和下游换能器,每个换能器和下游换能器接收由另一个传输的信号。 上游和下游信号之间的差异与流体的流速几乎不变,并且该信号的参数的测量考虑了流体的声速。 然后可以使用上游和下游信号的飞行时间来计算流量。 利用从接收到的信号向信号源提供反馈的锁相环来维持换能器之间的差信号的预定数量的循环,从而根据温度变化自动调整流体中的声速变化。

    Molecular differences between species of the M. tuberculosis complex
    23.
    发明授权
    Molecular differences between species of the M. tuberculosis complex 有权
    结核分枝杆菌菌种之间的分子差异

    公开(公告)号:US07364740B2

    公开(公告)日:2008-04-29

    申请号:US11143401

    申请日:2005-06-01

    CPC分类号: C12Q1/689 C12Q2600/156

    摘要: Specific genetic deletion are identified in mycobacteria isolates, including variations in the M. tuberculosis genome sequence between isolates, and numerous deletion present in BCG as compared to M. tb. These deletions are used as markers to distinguish between pathogenic and avirulent strains, and as a marker for particular M. tb isolates. Deletions specific to vaccine strains of BCG are useful in determining whether a positive tuberculin skin test is indicative of actual tuberculosis infection. The deleted sequences may be re-introduced into BCG to improve the efficacy of vaccination. Alternatively, the genetic sequence that corresponds to the deletion(s) are deleted from M. bovis or M. tuberculosis to attenuate the pathogenic bacteria.

    摘要翻译: 在分枝杆菌分离株中鉴定了特异性遗传缺失,包括分离株之间的结核分枝杆菌基因组序列的变异,以及与M.tb相比在BCG中存在的许多缺失。 这些缺失被用作区分病原菌和无毒菌株的标记物,并且作为特异性M.tb菌株的标记物。 对BCG疫苗株特异性的缺失可用于确定阳性结核菌素皮肤试验是否表明实际的结核病感染。 可将经删除的序列重新引入BCG以提高疫苗接种的效力。 或者,对应于缺失的遗传序列从牛分枝杆菌或结核分枝杆菌中缺失,以减毒病原菌。

    Molecular differences between species of the M. tuberculosis complex
    24.
    发明授权
    Molecular differences between species of the M. tuberculosis complex 有权
    结核分枝杆菌菌种之间的分子差异

    公开(公告)号:US06686166B2

    公开(公告)日:2004-02-03

    申请号:US09894844

    申请日:2001-06-27

    IPC分类号: G01N3353

    CPC分类号: C12Q1/689 C12Q2600/156

    摘要: Specific genetic deletions are identified in mycobacteria isolates, including variations in the M. tuberculosis genome sequence between isolates, and numerous deletion present in BCG as compared to M. tb. These deletions are used as markers to distinguish between pathogenic and avirulent strains, and as a marker for particular M. tb isolates. Deletions specific to vaccine strains of BCG are useful in determining whether a positive tuberculin skin test is indicative of actual tuberculosis infection. The deleted sequences may be re-introduced into BCG to improve the efficacy of vaccination. Alternatively, the genetic sequence that corresponds to the deletion(s) are deleted from M. bovis or M. tuberculosis to attenuate the pathogenic bacteria.

    摘要翻译: 在分枝杆菌分离物中鉴定特异性遗传缺失,包括分离株之间的结核分枝杆菌基因组序列的变异,以及与M.bb相比在BCG中存在的许多缺失。 这些缺失被用作区分病原菌和无毒菌株的标记物,并且作为特异性M.tb菌株的标记物。 对BCG疫苗株特异性的缺失可用于确定阳性结核菌素皮肤试验是否表明实际的结核病感染。 可将经删除的序列重新引入BCG以提高疫苗接种的效力。 或者,对应于缺失的遗传序列从牛分枝杆菌或结核分枝杆菌中缺失,以减毒病原菌。

    Recumbent bicycle with concentric mid-drive and pivot
    25.
    发明授权
    Recumbent bicycle with concentric mid-drive and pivot 失效
    卧式自行车同心中档和枢轴

    公开(公告)号:US06585278B1

    公开(公告)日:2003-07-01

    申请号:US10058885

    申请日:2002-01-28

    IPC分类号: B62K302

    CPC分类号: B62K3/005 B62K15/008

    摘要: A recumbent bicycle with (i) a cantilevered bicycle seat and (ii) a coaxial pivot and mid-drive sprocket around which the bicycle can be folded so as to form a more compact configuration. The folding of the bicycle is facilitated by the splaying of support arms for the coaxial pivot and mid-drive sprocket, which splaying allows the rear portion of the bicycle to be folded into a position lying between the splayed support arms.

    摘要翻译: 一种卧式自行车,其具有(i)悬臂式自行车座椅和(ii)同轴枢轴和中驱动链轮,骑自行车可围绕该链轮折叠以形成更紧凑的构造。 自行车的折叠通过对同轴枢轴和中驱动链轮的支撑臂的展开而得以促进,其中,该支撑臂可以将自行车的后部折叠成位于所述支撑臂之间的位置。

    Efficiency enhanced turbine engine
    26.
    发明授权
    Efficiency enhanced turbine engine 有权
    效率提高涡轮发动机

    公开(公告)号:US6105359A

    公开(公告)日:2000-08-22

    申请号:US353984

    申请日:1999-07-15

    申请人: Michael A. Wilson

    发明人: Michael A. Wilson

    摘要: An efficiency enhanced turbine engine and method are disclosed for a turbine engine having a rotor and a fluid flow path that extends through compression, combustion, and expansion or turbine stages with fluid flowing through the fluid flow path driving the rotor. The turbine engine has one or more stator-rotor-stator assemblies, and use of a flat rotor disk with turbine blades provides simplicity in fabrication and operation. Increases in pressure during combustion above the pressure at the compression stage are prevented from flowing back to the compression stage and/or capturing of fluid during combustion enables elevation of the temperature and pressure while maintaining the fluid at near constant volume during combustion, both of which enhance the efficiency of the turbine engine. Fluid flow is preferably in a circumferential direction and the fluid is caused to reenter the rotor a plurality of times to provide cyclic exposure of the moving parts of the turbine engine to different portions of the engine cycle for reducing the average temperature of the moving parts and thereby allow higher compression ratios and combustion temperatures to also yield higher efficiency.

    摘要翻译: 公开了一种用于具有转子和流体流动路径的涡轮发动机的效率增强的涡轮发动机和方法,所述转子和流体流动路径通过压缩,燃烧和膨胀或涡轮级延伸,流体流过驱动转子的流体流动路径。 涡轮发动机具有一个或多个定子 - 转子 - 定子组件,并且使用具有涡轮叶片的平面转子盘提供制造和操作的简单性。 在燃烧过程中,在压缩阶段的压力以上的压力下降的压力被阻止回流到压缩阶段和/或在燃烧过程中流体捕获和/或在燃烧期间保持流体处于接近恒定体积的情况下升高温度和压力, 提高涡轮发动机的效率。 流体流动优选地在圆周方向上,并且使流体多次重新进入转子,以使涡轮发动机的运动部分循环暴露于发动机循环的不同部分,以减少运动部件的平均温度, 从而允许更高的压缩比和燃烧温度也产生更高的效率。

    Chemically active fire suppression composition
    27.
    发明授权
    Chemically active fire suppression composition 失效
    化学活性灭火组合物

    公开(公告)号:US6024889A

    公开(公告)日:2000-02-15

    申请号:US15359

    申请日:1998-01-29

    CPC分类号: A62D1/06 C06D5/06

    摘要: The invention is directed to a chemically active fire suppression composition, comprising a propellant comprising a fuel and an oxidizer, the propellant capable of generating inert gas; and an environmentally innocuous chemical fire suppressant capable of generating fire suppressive reactive species. The combination of physically acting fire suppression agents and chemically acting, environmentally innocuous fire suppression agents results in a highly effective, environmentally innocuous fire extinguishing composition that has low ozone depletion potential (ODP), low global warming potential (GWP), and high suppression efficiency.

    摘要翻译: 本发明涉及一种化学活性灭火组合物,其包含燃料和氧化剂的推进剂,所述推进剂能够产生惰性气体; 以及能够产生防火反应物种的环境无害化学灭火剂。 物理作用的灭火剂和化学作用的环境无害的灭火剂的组合导致具有低臭氧消耗潜能(ODP),低全球变暖潜能值(GWP)和高抑制效率的高效环保无害灭火组合物 。

    Pressurized air conveyor curve and method
    28.
    发明授权
    Pressurized air conveyor curve and method 失效
    加压空气输送机曲线及方法

    公开(公告)号:US5443333A

    公开(公告)日:1995-08-22

    申请号:US331125

    申请日:1994-10-28

    IPC分类号: B65G51/03

    CPC分类号: B65G51/03 B65G2201/0244

    摘要: An air conveyor is provided with a plenum chamber with a perforated deck plate, side walls, and a holddown with holes of an area density sufficiently low to pressurize an enclosed article transport zone. On curved portions of the air conveyor the holddown holes have an area density gradient which increases from an outer toward an inner side of the curve. In another aspect, the invention provides methods for accumulating articles without undue damage and for moving articles away from the outer side of the curve.

    摘要翻译: 空气输送机设置有具有穿孔甲板板,侧壁和具有足够低的区域密度的孔的压力室,以对封闭物品输送区域加压。 在空气输送机的弯曲部分上,压紧孔具有从曲线的外侧向内侧增加的面积密度梯度。 在另一方面,本发明提供了用于不会过度损坏地堆积物品并使物品远离曲线外侧的方法。

    Composition and process for inflating a safety crash bag
    29.
    发明授权
    Composition and process for inflating a safety crash bag 失效
    充气安全碰撞袋的组成和过程

    公开(公告)号:US4948439A

    公开(公告)日:1990-08-14

    申请号:US462476

    申请日:1990-01-09

    CPC分类号: B60R21/30 C06D5/06

    摘要: Composition and process for inflating an automobile or aircraft safety crash bag comprising igniting at elevated pressure a pyrotechnic material comprising at least one tetrazole or triazole compound containing hydrogen in the molecule, at least one oxygen containing oxidizer compound, and at least one metal oxide to generate a gas which is admixed with air by means of an aspirating venturi and thereafter utilized to inflate the crash bag.

    摘要翻译: 用于对汽车或飞机安全碰撞袋进行充气的组合物和方法包括在升高的压力下点燃包含在分子中含有氢的至少一种四唑或三唑化合物的至少一种含氧氧化剂化合物和至少一种金属氧化物的烟火材料,以产生 气体,其通过吸气文丘里管与空气混合,然后用于使救护袋膨胀。