CORE DRILL
    1.
    发明申请

    公开(公告)号:US20220314426A1

    公开(公告)日:2022-10-06

    申请号:US17711633

    申请日:2022-04-01

    Abstract: A bit-removal assembly includes a first ring coupled to an output shaft for co-rotation therewith, a second ring supported on the lower retaining ring of the output shaft, a frusto-conical surface on at least one of the first or second rings, and a wedge positioned between the first and second rings and engaging with the frusto-conical surface. A collar defines a cam surface located radially outward of the wedge. The collar is movable between a locked position, in which the cam surface is engaged with the wedge to displace the wedge radially inward on the frusto-conical surface to separate the second ring from the first ring, and a released position, in which the cam surface is misaligned with the wedge to permit the wedge to move radially outward on the frusto-conical surface. A biasing member urges the collar towards the locked position.

    CUT-OFF SAW
    3.
    发明公开
    CUT-OFF SAW 审中-公开

    公开(公告)号:US20240278342A1

    公开(公告)日:2024-08-22

    申请号:US18649374

    申请日:2024-04-29

    CPC classification number: B23D45/16 B23D47/12

    Abstract: A cut-off saw including a housing, a support arm coupled to and extending from the housing in a first direction, a cutting wheel supported by the support arm, a rear handle extending from the housing in an opposite, second direction, a motor disposed in the housing, a battery pack configured to power the motor, and a battery receptacle defined by the housing in which the battery pack is receivable. The battery pack is positioned between the cutting wheel and the rear handle. The cut-off saw also includes a battery cover coupled to the housing. The battery cover is selectively moveable between a closed position, in which the battery pack is enclosed by the battery receptacle and the cover, and an open position, in which the battery pack is accessible.

    BAND SAW
    10.
    发明公开
    BAND SAW 审中-公开

    公开(公告)号:US20230256527A1

    公开(公告)日:2023-08-17

    申请号:US18167940

    申请日:2023-02-13

    CPC classification number: B23D53/12 B23D55/065

    Abstract: A band saw including a housing, a motor, a drive pulley configured to receive torque from the motor, and a plurality of driven pulleys rotatably coupled to a plate, in which the plate is coupled to the housing for sliding movement. The band saw further includes a cavity within the housing and located between the drive pulley and the plurality of driven pulleys and an endless saw blade wrapped around the drive pulley and the plurality of driven pulleys. A first of the driven pulleys is rotatable about a first axis oriented perpendicular to the plate. A second of the driven pulleys is rotatable about a second axis that is obliquely oriented relative to the plate to impart a twisting movement to the saw blade about an oblong path defined by the saw blade, prior to the saw blade passing through the cavity.

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