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317 条记录 (耗时 0.042 秒)

    Spirit level
    82.
    外观设计
    Spirit level 有权

    公开(公告)号：USD1000977S1

    公开(公告)日：2023-10-10

    申请号：US29823411

    申请日：2022-01-17

    申请人： Jian Liu

    设计人： Jian Liu

    摘要： FIG. 1 is a perspective view of a spirit level, showing my new design;
    FIG. 2 is another perspective view thereof;
    FIG. 3 is a front view thereof;
    FIG. 4 is a rear view thereof;
    FIG. 5 is a left side view thereof;
    FIG. 6 is a right side view thereof;
    FIG. 7 is a top plan view thereof; and,
    FIG. 8 is a bottom plan view thereof.

    Stator assembly and center disk spindle double-rotor motor
    83.
    发明授权
    Stator assembly and center disk spindle double-rotor motor 有权

    公开(公告)号：US11728716B2

    公开(公告)日：2023-08-15

    申请号：US17360561

    申请日：2021-06-28

    申请人： Jian Liu

    发明人： Jian Liu

    IPC分类号： H02K16/02 ,  H02K5/20 ,  H02K1/02 ,  H02K1/16 ,  H02K3/02 ,  H02K5/02 ,  H02K7/00

    CPC分类号： H02K16/02 ,  H02K1/02 ,  H02K1/165 ,  H02K3/02 ,  H02K5/02 ,  H02K5/207 ,  H02K7/003

    摘要： A stator assembly and a center disk spindle double-rotor motor, includes a stator carrier and a winding core body; a through slot is formed in an end surface of the stator carrier in a penetrating manner; and the winding core body is arranged in the through slot. The center disk spindle double-rotor motor includes a transmission shaft, a stator assembly and rotor assemblies; the stator assembly is arranged on the transmission shaft; the transmission shaft can rotate relative to the stator assembly; the transmission shaft is fixedly provided with the rotor assemblies on two sides of the stator assembly. The whole center disk spindle double-rotor motor uses a double-rotor structure; and by means of the stator assembly of a specific structure, and in combination with the rotor assembly, the motor has beneficial effects of high efficiency, high power, large torque, low loss, light mass, good heat dissipation and the like.

    Secure personal item carrier weapon concealment compartment system
    86.
    发明授权
    Secure personal item carrier weapon concealment compartment system 有权

    公开(公告)号：US10180304B2

    公开(公告)日：2019-01-15

    申请号：US15421263

    申请日：2017-01-31

    申请人： Jian Liu

    发明人： Jian Liu

    IPC分类号： F41C33/06 ,  A45C3/00 ,  F41C33/02 ,  A45C13/02 ,  A45C13/10

    摘要： A system and method for a secure weapon concealment compartment situated in a personal carrying item such as a purse, handbag, briefcase, backpack or luggage that allows a person to safely and efficiently carry, store and make available for use a weapon. The concealment compartment includes weapon securing having tapered holders or orifices formed to receive a weapon and provide safety against unintentional discharge of the weapon and resistive forces applied to a protective carrier of the weapon once stored to enable quick and effective withdrawal of the weapon from the concealment compartment.

    Methods, systems, and computer-readable media for model order reduction in electromagnetic simulation and modeling
    90.
    发明授权
    Methods, systems, and computer-readable media for model order reduction in electromagnetic simulation and modeling 有权
    用于电磁仿真和建模中的模型顺序降低的方法，系统和计算机可读介质

    公开(公告)号：US09542515B2

    公开(公告)日：2017-01-10

    申请号：US13305178

    申请日：2011-11-28

    申请人： Jian Liu ,  Xiao Lin ,  Anyu Kuo ,  Jiayuan Fang

    发明人： Jian Liu ,  Xiao Lin ,  Anyu Kuo ,  Jiayuan Fang

    IPC分类号： G06F17/50

    CPC分类号： G06F17/5036

    摘要： Methods, systems, and computer readable media are disclosed for simulating a circuit. The method may comprise a step of providing a network model of the circuit having a plurality of ports, the plurality of ports being associated with one or more net pairs. The method may also comprise combining the plurality of ports into one or more groups based on the net pairs, each group corresponding to a net pair. In addition, the method may comprise calculating, for each group, one or more expansion elements, wherein the one or more expansion elements are associated with a shared property among all ports of the group. Moreover, the method may comprise simulating the circuit using a combination of the expansion elements calculated for each group.

    摘要翻译： 公开了用于模拟电路的方法，系统和计算机可读介质。 该方法可以包括提供具有多个端口的电路的网络模型的步骤，该多个端口与一个或多个网络对相关联。 所述方法还可以包括基于所述网络对将所述多个端口组合成一个或多个组，每个组对应于网络对。 此外，该方法可以包括为每个组计算一个或多个扩展元素，其中一个或多个扩展元素与该组的所有端口中的共享属性相关联。 此外，该方法可以包括使用为每个组计算的扩展元件的组合来模拟电路。