White smoke mix
    5.
    发明授权

    公开(公告)号:US10131587B1

    公开(公告)日:2018-11-20

    申请号:US15282109

    申请日:2016-09-30

    摘要: A mixture and method of creating the mixture includes mixing hexachloroethane, stannous oxide, and aluminum together. The mixture may be loaded into at least one canister. The mixture may be combusted to create a smoke screen. The loading of the mixture into the at least one canister may include pressurized loading at loading pressures in the range of approximately 2300 psi to 3600 psi. The hexachloroethane may include approximately 30-40 parts by weight of the mixture and have a particle size of approximately less than 850 μm. The stannous oxide may include approximately 55-65 parts by weight of the mixture and have a particle size of approximately less than 150 μm. The aluminum may include approximately 5-10 parts by weight of the mixture and have a particle size of approximately less than 45 μm. The mixture is devoid of zinc chloride.

    PORTABLE IMPEDANCE BASED CHEMICAL SENSOR
    9.
    发明申请

    公开(公告)号:US20200249190A1

    公开(公告)日:2020-08-06

    申请号:US16398825

    申请日:2019-04-30

    IPC分类号: G01N27/22 G01N27/02 G01N29/22

    摘要: An apparatus for sensing a target analyte includes a sensing material of a baseline composition. The sensing material is in electrical communication with an an alternating energy input across the sensing material at a first frequency. The sensing material is configured to be placed within an environment such that an exposed state is in communication with a concentration of a target analyte proximate the sensing material, and wherein the target analyte changes at least one compositional property of the baseline composition. An impedance detection device is connected to a sensing circuit and receives an output from the sensing material, the output exhibiting a respective impedance value of the sensing material corresponding to the input for the first frequency. The respective impedance value is dependent upon the concentration of the target analyte in the environment and the first frequency.