Rain Activated Mineral Filtration Bag and Method
    11.
    发明申请
    Rain Activated Mineral Filtration Bag and Method 审中-公开
    雨活性矿物过滤袋和方法

    公开(公告)号:US20090249676A1

    公开(公告)日:2009-10-08

    申请号:US12399961

    申请日:2009-03-08

    CPC classification number: A01M31/008

    Abstract: The mineral and salts dispensing system is a filtration bag designed out of high strength woven geotextile fabric that is intended to filter fresh minerals/salt to the ground for deer, elk, or other animal consumption. The bag's functionality should last 2-3 years with normal use as it is UV stabilized to resist biodegrading; it is refillable with ease of installation and a cost-effective customizable solution for hunters.

    Abstract translation: 矿物和盐分配系统是由高强度编织土工织物设计的过滤袋,其旨在将新鲜矿物质/盐过滤到地面以用于鹿,麋鹿或其他动物消费。 该袋的功能应该持续2-3年,正常使用,因为它是紫外线稳定的抵抗生物降解; 它是可重复填充,易于安装和猎人的成本效益可定制的解决方案。

    Optical fiber gratings with azimuthal refractive index perturbation
    12.
    发明授权
    Optical fiber gratings with azimuthal refractive index perturbation 失效
    具有方位折射率扰动的光纤光栅

    公开(公告)号:US07085451B2

    公开(公告)日:2006-08-01

    申请号:US11220337

    申请日:2005-09-06

    CPC classification number: G02B6/02085 G02B6/02142 G02B6/022

    Abstract: The present invention relates to a type of optical fiber grating having an azimuthal refractive-index perturbation. The optical fiber includes a fiber grating that has a plurality of grating elements formed therein. At least one of the grating elements has a spatially varying index of refraction that varies azimuthally about the centerline of the optical fiber. The fiber grating acts as a band-stop optical spectral filter. In addition, since fiber-cladding modes are weakly-guided modes, their power can be easily dissipated by scattering, bending, stretching, and/or rotating the optical fiber. Multiple configurations of these gratings within an optical fiber are given. Methodologies are given for the fabrication of these gratings. Devices are presented which can dynamically attenuate, tune, switch, or modulate the wavelength spectral characteristics of an optical signal.

    Abstract translation: 本发明涉及一种具有方位角折射率扰动的光纤光栅。 光纤包括在其中形成有多个光栅元件的光纤光栅。 光栅元件中的至少一个具有空间变化的折射率,其围绕光纤的中心线方位改变。 光纤光栅用作带阻光谱滤波器。 此外,由于光纤包层模式是弱引导模式,它们的功率可以通过散射,弯曲,拉伸和/或旋转光纤而容易地消散。 给出光纤内的这些光栅的多种配置。 给出了制造这些光栅的方法。 可以提供可以动态地衰减,调谐,切换或调制光信号的波长光谱特性的装置。

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