Suppressor with reduced gas back flow

    公开(公告)号:US11686547B2

    公开(公告)日:2023-06-27

    申请号:US17399337

    申请日:2021-08-11

    申请人: Sig Sauer, Inc.

    发明人: Krzysztof J. Kras

    IPC分类号: F41A21/30

    CPC分类号: F41A21/30

    摘要: A suppressor for a firearm includes a baffle stack having an outer surface, the baffle stack comprising a plurality of baffles that define an inner chamber extending along a central axis of the baffle stack and a projectile pathway through the baffle stack along the central axis. An outer housing is around the baffle stack and has an inner surface separated from and confronting the outer surface of the baffle stack. An outer chamber is defined between the inner surface of the outer housing and the outer surface of the baffle stack. Flow-directing structures are in the outer chamber and are arranged to direct gases into or out of the inner chamber.

    Scintillation detector
    88.
    发明授权

    公开(公告)号:US11650338B2

    公开(公告)日:2023-05-16

    申请号:US17292625

    申请日:2019-11-20

    申请人: BAE SYSTEMS plc

    摘要: The scintillation detector assembly 10 comprises a first scintillation detector 11A of a set SSD of scintillation detectors 11, comprising a first scintillator 12A of a set SS of scintillators 12 and a first light sensor 13A of a set SLS of respective light sensors 13 optically coupled thereto, arranged to detect electromagnetic radiation and output a first signal; a first radiation source 14A of a set SRS of radiation sources 14, configured to emit first gamma radiation G1 of a first set SG of gamma radiation G, having a first reference energy RE1 of a set SRE of respective first reference energies RE; and a controller 15 configured to control a gain of the first scintillation detector 11A based, at least in part, on the first gamma radiation, having the first reference energy, detected by the first scintillation detector 11A.

    Drone
    89.
    外观设计
    Drone 有权

    公开(公告)号:USD985425S1

    公开(公告)日:2023-05-09

    申请号:US29743813

    申请日:2020-07-24

    申请人: Sang Hyun Lee

    设计人: Sang Hyun Lee

    摘要: FIG. 1 is a perspective view of the drone embodying my new design;
    FIG. 2 is a front elevational view thereof;
    FIG. 3 is a rear elevational view thereof;
    FIG. 4 is a right side elevational view thereof;
    FIG. 5 is a left side elevational view thereof;
    FIG. 6 is a top plan view thereof; and,
    FIG. 7 is a bottom plan view thereof.
    The broken lines depict portions of the drone that form no part of the claim.

    Recoil assembly for a machine gun
    90.
    发明授权

    公开(公告)号:US11629927B2

    公开(公告)日:2023-04-18

    申请号:US17545351

    申请日:2021-12-08

    申请人: Sig Sauer, Inc.

    IPC分类号: F41A5/12 F41A25/12

    摘要: A recoil assembly for a rifle includes a barrel assembly, a bolt, bolt actuator, and a buffer assembly. The barrel assembly includes a barrel secured to a barrel extension. The barrel assembly is configured to be movably received through the fore end of a receiver and to move axially relative to the upper receiver when the rifle is fired. The barrel extension is coupled to a hydraulic buffer assembly located below the barrel extension and counteracts recoil forces acting on the barrel extension when the rifle is fired. An op-rod spring is coupled to an op rod extending from a gas piston assembly on the barrel. The op-rod spring counteracts recoil forces acting the bolt actuator when the rifle is fired.