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21 条记录 (耗时 0.017 秒)

    Magnetostrictive non-contacting pressure detection system
    3.
    发明授权
    Magnetostrictive non-contacting pressure detection system 失效
    磁致伸缩非接触式压力检测系统

    公开(公告)号：US4289987A

    公开(公告)日：1981-09-15

    申请号：US773771

    申请日：1977-03-02

    申请人： James T. Russell ,  Thomas J. Davis

    发明人： James T. Russell ,  Thomas J. Davis

    IPC分类号： G01L9/16 ,  H01L41/12 ,  H01L41/14

    CPC分类号： G01L9/16 ,  H01L41/125

    摘要： A system including a sensor and electronic instrumentation for measuring fission gas pressures inside a pressurized system or device or the like, such as a nuclear fuel rod. The system is based primarily on what is commonly known as the Villari effect which is the dependence of the magnetic permeability of certain magnetic materials upon applied stress, and permits pressure measurements to be made without any mechanical or physical penetration of the fuel cladding or end cap of the fuel rod. In a preferred embodiment pressure sensing is implemented by locating a sensor made from Villari sensitive material inside the pressurized system. The pressure places a stress loading on the sensor which in turn produces electrical output signals proportional to the applied stress. By sensing the initial magnetic permeability of the sensor, the difference between that sensed information and subsequently sensed similar information can be obtained, thereby providing an indication of any change in system pressure and the degree of such change. Such measurements can be made sequentially at multiple locations by placing an external electromagnetic search coil adjacent the internal sensor in the pressurized system such that the magnetic field of the search coil penetrates the containment wall of the pressurized system, thus interrogating the sensor and providing an appropriate readout which can be calibrated in terms of system pressure.

    摘要翻译： 一种包括用于测量加压系统或装置等内的裂变气体压力的传感器和电子仪器的系统，例如核燃料棒。 该系统主要基于通常所称的Villari效应，其是某些磁性材料在施加的应力下的磁导率的依赖性，并且允许在没有燃料包层或端盖的任何机械或物理穿透的情况下进行压力测量 的燃料棒。 在优选实施例中，通过将由Villari敏感材料制成的传感器定位在加压系统内部来实现压力感测。 压力将应力负载放置在传感器上，这又产生与施加的应力成比例的电输出信号。 通过感测传感器的初始磁导率，可以获得感测信息与随后检测到的类似信息之间的差异，从而提供系统压力和这种变化程度的任何变化的指示。 通过将外部电磁搜索线圈放置在加压系统中的内部传感器附近，使得搜索线圈的磁场穿透加压系统的容纳壁，从而可以在多个位置进行这种测量，从而询问传感器并提供适当的 读数可根据系统压力进行校准。

    Bag accessory holder
    4.
    发明授权
    Bag accessory holder 有权

    公开(公告)号：US10414533B2

    公开(公告)日：2019-09-17

    申请号：US15896270

    申请日：2018-02-14

    申请人： Thomas J Davis

    发明人： Thomas J Davis

    IPC分类号： B65B67/12 ,  B62B1/26

    摘要： A bucket waste bag holder accessory that includes a support ring with a pendent skirt with at least two legs attached or formed on the front surface of the support ring or pendent skirt. Formed on the distal ends of each leg is a U-shaped clip configured to snap fit over the rounded top edge of a bucket. During installation, the top edge of a plastic bag is folded over the support ring and the pendent skirt and the closed end of the plastic bag is extended through a center opening. The legs are sufficiently spaced apart and extend downward from the support ring to support the top opening of the bag is a suspended, elevated position above the bucket while the closed end of the plastic bag rests inside the bucket. In one embodiment, the legs are configured to selectively rotate enabling them to attach to buckets with different top edges. An optional elastic strap may hold the plastic bag on the support ring and pendent skirt when filling the plastic bag with waste.

    Bag Accessory Holder
    5.
    发明申请
    Bag Accessory Holder 有权

    公开(公告)号：US20180229880A1

    公开(公告)日：2018-08-16

    申请号：US15896270

    申请日：2018-02-14

    申请人： Thomas J. Davis

    发明人： Thomas J. Davis

    IPC分类号： B65B67/12 ,  B62B1/26

    CPC分类号： B65B67/1233 ,  B62B1/204 ,  B62B1/266 ,  B62B2202/22

    摘要： A bucket waste bag holder accessory that includes a support ring with a pendent skirt with at least two legs attached or formed on the front surface of the support ring or pendent skirt. Formed on the distal ends of each leg is a U-shaped clip configured to snap fit over the rounded top edge of a bucket. During installation, the top edge of a plastic bag is folded over the support ring and the pendent skirt and the closed end of the plastic bag is extended through a center opening. The legs are sufficiently spaced apart and extend downward from the support ring to support the top opening of the bag is a suspended, elevated position above the bucket while the closed end of the plastic bag rests inside the bucket. In one embodiment, the legs are configured to selectively rotate enabling them to attach to buckets with different top edges. An optional elastic strap may hold the plastic bag on the support ring and pendent skirt when filling the plastic bag with waste.

    Multi frequency eddy current test apparatus with intermediate frequency processing
    7.
    发明授权
    Multi frequency eddy current test apparatus with intermediate frequency processing 失效
    具有中频处理的多频涡流测试装置

    公开(公告)号：US4467281A

    公开(公告)日：1984-08-21

    申请号：US125895

    申请日：1980-02-29

    申请人： Thomas J. Davis ,  Charles B. Perry

    发明人： Thomas J. Davis ,  Charles B. Perry

    IPC分类号： G01N27/90 ,  G01N27/72 ,  G01R33/12

    CPC分类号： G01N27/9053 ,  G01N27/9046

    摘要： An eddy current test apparatus and method in which multiple sequential test frequencies are employed. The voltage induced in a sensing coil at said test frequencies are multiplexed and frequency translated to provide a single frequency for processing. The apparatus employs a single channel to process the induced voltages.

    摘要翻译： 一种使用多个顺序测试频率的涡流测试装置和方法。 在所述测试频率下在感测线圈中感应的电压被多路复用并频率转换以提供用于处理的单个频率。 该装置采用单通道来处理感应电压。

    Amplitude sorting of oscillatory burst signals by sampling
    9.
    发明授权
    Amplitude sorting of oscillatory burst signals by sampling 失效
    采样振荡脉冲信号的幅度分类

    公开(公告)号：US4006625A

    公开(公告)日：1977-02-08

    申请号：US600418

    申请日：1975-07-30

    申请人： Thomas J. Davis

    发明人： Thomas J. Davis

    IPC分类号： G01H1/00

    CPC分类号： G01H1/00

    摘要： A method and apparatus for amplitude sorting of oscillatory burst signals is described in which the burst signal is detected to produce a burst envelope signal and an intermediate or midportion of such envelope signal is sampled to provide a sample pulse output. The height of the sample pulse is proportional to the amplitude of the envelope signal and to the maximum burst signal amplitude. The sample pulses are fed to a pulse height analyzer for sorting. The present invention is used in an acoustic emission testing system to convert the amplitude of the acoustic emission burst signals into sample pulse heights which are measured by a pulse height analyzer for sorting the pulses in groups according to their height in order to identify the material anomalies in the test material which emit the acoustic signals.

    摘要翻译： 描述了振荡脉冲串信号的振幅排序的方法和装置，其中检测到脉冲串信号以产生脉冲包络信号，并且对这种包络信号的中间或中间部分进行采样以提供采样脉冲输出。 采样脉冲的高度与包络信号的幅度和最大脉冲串信号幅度成比例。 将采样脉冲馈送到脉冲高度分析器进行分选。 本发明用于声发射测试系统中，以将声发射脉冲串信号的振幅转换成由脉冲高度分析仪测量的采样脉冲高度，用于根据其高度对脉冲进行分组，以识别材料异常 在发出声学信号的测试材料中。

    WHEELBARROW MOUNTED YARD WASTE BAG SYSTEM
    10.
    发明申请
    WHEELBARROW MOUNTED YARD WASTE BAG SYSTEM 有权
    轮式安装板垃圾袋系统

    公开(公告)号：US20110260419A1

    公开(公告)日：2011-10-27

    申请号：US12966403

    申请日：2010-12-13

    申请人： Thomas J. Davis

    发明人： Thomas J. Davis

    IPC分类号： B62B1/22 ,  B65D25/14

    CPC分类号： B65F1/1415 ,  B62B1/22 ,  B62B2202/22 ,  B65F2240/138

    摘要： A portable yard waste bag system that includes a bag holding accessory that attaches to the front top edge of a wheelbarrow that temporarily holds a yard waste bag in an opened position in the bucket. The accessory includes a top ring with a pendent skirt with a plurality of longitudinally aligned slits that divide the skirt into a plurality of radially aligned leaves. The lower edges of the leaves on the skirts formed along the top ring's front 180 degree arc connected to first strap that curves around and connects to the front top edge of a wheelbarrow. The lower edges of the leaves extend downward from the top ring's rear 180 degree arc and connect to a second strap that curves upward and extends transversely over the bucket. When assembled on the wheelbarrow, the front strap engages the front edge while the top ring is held in a forward extending, diagonally position directly over the wheel. A waste bag is unfolded and extends through the top ring's center opening so that the bottom end rests against inside the bucket. The top edge of the bag is folded over the top ring. An optional lid is provided and connects over the top ring to close the bag.

    摘要翻译： 一种便携式废物袋系统，其包括附着在独轮车的前上边缘的袋保持附件，该手推车临时将货物废物袋保持在桶的打开位置。 附件包括具有侧裙的顶环，多个纵向排列的狭缝将裙部分成多个径向排列的叶。 沿着顶环的前部180度形成的裙部上的叶子的下边缘与连接到独轮车的前顶边缘的第一带连接。 叶片的下边缘从顶环的后180度弧向下延伸，并连接到向上弯曲并横向延伸到桶上的第二条带。 当组装在独轮车上时，前带与前边缘接合，同时顶环保持在向前延伸的对角位置，直接位于车轮上方。 废物袋展开并延伸穿过顶环的中心开口，使得底端靠在桶内。 袋的顶部边缘折叠在顶部环上。 提供可选的盖子并连接在顶环上以关闭袋子。