Snow thrower
    1.
    发明授权

    公开(公告)号:US12037758B2

    公开(公告)日:2024-07-16

    申请号:US17327978

    申请日:2021-05-24

    摘要: A snow thrower includes a first drive shaft enabled to rotate about a first axis; an auger having auger blades mounted to the first drive shaft, a second drive shaft enabled to rotate about a second axis, an impeller having an impeller base mounted to the second drive shaft and impeller blades where the second axis and the first axis are perpendicular to each other, a walking wheel assembly, a first motor configured to drive the walking wheel assembly to rotate, a second motor configured to drive the auger to rotate about the first axis and drive the impeller to rotate about the second axis, a first reduction assembly including first-type gears for realizing power transmission between the second motor and the second drive shaft, and a second reduction assembly including second-type gears for realizing power transmission between the second drive shaft and the first drive shaft.

    Boat lift with noise reducing bearing assembly

    公开(公告)号:US11912543B2

    公开(公告)日:2024-02-27

    申请号:US17325914

    申请日:2021-05-20

    发明人: Charles A. Fox

    摘要: A boat lift that may have a first worm screw operably connected to the drive shaft defining an axis of rotation aligned with the drive shaft and operably contacting a first worm gear, the first worm screw and the first worm gear defines a first lifting stage. The boat lift may also have a second worm screw operably connected to the first worm gear and operably contacts a second worm gear, the second worm screw and the second worm gear defines a second lifting stage. The boat lift may have a tapered roller bearing assembly that operably engages the second worm screw, the tapered roller bearing assembly has a first tapered roller bearing secured at a first location proximate a first end of the second worm screw and a second tapered roller bearing secured at a second location proximate a second opposing end of the second worm screw.

    Impact tool
    7.
    发明授权

    公开(公告)号:US11872681B2

    公开(公告)日:2024-01-16

    申请号:US17047858

    申请日:2020-04-07

    摘要: An impact tool includes a housing having a handle portion defining a first axis, a motor supported by the housing and defining a motor axis, and a rotary impact mechanism arranged on a second axis that is perpendicular to the first axis. The rotary impact mechanism is configured to convert a continuous rotational input from the motor to consecutive rotational impacts upon a workpiece. The rotary impact mechanism includes a chamber containing a hydraulic fluid, an anvil positioned at least partially within the chamber, and a hammer for imparting the consecutive rotational impacts upon the anvil. The hydraulic fluid is configured to attenuate a noise of the rotary impact mechanism that is created by the hammer impacting the anvil. The impact tool further includes a gear train that receives torque from the motor and includes a rotational input that transfers torque to the rotary impact mechanism.

    Multi-rotor electric machine
    8.
    发明授权

    公开(公告)号:US11843293B2

    公开(公告)日:2023-12-12

    申请号:US18093921

    申请日:2023-01-06

    发明人: Antwan Shenouda

    IPC分类号: H02K16/02 F16H1/22 H02K7/116

    CPC分类号: H02K16/02 F16H1/227 H02K7/116

    摘要: A multi-rotor electric machine having a stator, a first rotor magnetically coupled to the stator and a second rotor magnetically coupled to the stator is disclosed. A method of operating the electric machine comprises driving a gear via a first face of the gear using the first rotor and driving the gear via a second face of the gear using the second rotor.

    TRI-DRIVE TRANSMISSION FOR REAR MID-ENGINE VEHICLE

    公开(公告)号:US20230271496A1

    公开(公告)日:2023-08-31

    申请号:US18313808

    申请日:2023-05-08

    申请人: Robby Gordon

    发明人: Robby Gordon

    摘要: An apparatus and methods are provided for a transmission for a rear mid-engine vehicle. The transmission comprises a power transfer portion for receiving torque from the engine and a gearbox for providing conversions of rotational speed and torque. First and second side output portions conduct torque from the gearbox to the rear wheels. A forward output portion conducts torque to front wheels of a four-wheel drive vehicle. An air clutch comprising each output portion controls the degree of torque transferred to each wheel. The output portions are each coupled to a rear wheel by a rear axle, bevel gears, and rear portal gears. The rear axles are aligned with, and positioned above, the trailing arms to protect the rear axles from damage due to rocks and debris. The length and alignment of the rear axles cause CV joints to articulate in the same direction as the trailing arms.