Electric battery assembly
    11.
    发明授权

    公开(公告)号:US10211431B2

    公开(公告)日:2019-02-19

    申请号:US15548622

    申请日:2016-02-17

    Abstract: There is disclosed an electric battery assembly comprising: a plurality of electric batteries arranged in an array, an interconnection for connecting batteries in the array to provide a common power output; a plurality of shock absorbent housings, wherein each electric battery is provided within a shock-absorbent housing. The shock absorbent housing may have the form of a blister, which may be flexible and which may be filled with a shock-mitigating material.

    Conductive liquid antenna
    12.
    发明授权

    公开(公告)号:US11973266B2

    公开(公告)日:2024-04-30

    申请号:US17286076

    申请日:2019-10-07

    CPC classification number: H01Q1/364 H01Q1/48 H01Q9/0407

    Abstract: An antenna 300 comprising a housing 310 with an internal cavity 315. The cavity 315 holds an adjustable amount of electrically conductive liquid, and a twin-conductor feedline 350 connects the antenna 300 to a receiving and/or transmitting device. The conductive liquid in the cavity 315 of the antenna housing 310 acts as a first element and receives/transmits signals from/to the first feedline conductor, whilst the second feedline conductor is attached to electrical ground 320.

    Non-incendiary tracers
    13.
    发明授权

    公开(公告)号:US11965722B2

    公开(公告)日:2024-04-23

    申请号:US18005409

    申请日:2021-06-30

    CPC classification number: F42B12/382

    Abstract: In some examples, a non-incendiary tracer projectile structure for housing an electrically powered illumination source comprises a jacket comprising a generally pointed forward end and a generally blunt rearward end defining a rear opening, an internal retaining structure disposed towards the rearward end of the jacket to support a protective window that is transparent to a selected electromagnetic wavelength, wherein a portion of the rearward end of the jacket tapers in a radially inward direction whereby to define a circumferential narrowing of the rear opening so configured as to mechanically protect the internal retaining structure.

    Surveillance apparatus
    16.
    发明授权

    公开(公告)号:US10194120B2

    公开(公告)日:2019-01-29

    申请号:US15514252

    申请日:2015-09-24

    Abstract: There is disclosed a surveillance apparatus comprising: —a retractable support member the member having a first end and a second end; a housing; a spooling mechanism mounted at the housing, and being rotatable relative to the housing, and being attached to the second end of the retractable support member, the spooling mechanism being:Operable to rotate in a first direction to convert the retractable support member from a coiled condition to an extended condition and thereby pay-out the support member from the housing,Operable to rotate in a second direction opposite to the first to convert the retractable support member from the extended condition to the coiled condition and thereby retract the support member into the housing;A mount attached to the first end of the retractable support member; A surveillance device attached to the mount for receiving environmental signals, a human interface remote from the surveillance device; and an electrical connection operably connecting the surveillance device to the human interface, the electrical connection comprising an electrical rotary joint between the housing and the spooling mechanism, such that the surveillance device may be supported, remote from the human interface by paying out the member.

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