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    • 5. 发明授权
    • Apparatus for transporting and lifting loads
    • 运输和提升负载的装置
    • US3552556A
    • 1971-01-05
    • US3552556D
    • 1969-01-15
    • VRIEL A HALL
    • HALL VRIEL A
    • B60P1/02B60P3/22
    • B60P3/2205B60P1/02Y10T137/691
    • This invention relates to wheeled load conveyances of the type having a load container to be elevated when the conveyance is not moving and is to be stabilized against movement. The embodiment shown in the drawing is incorporated in a portable water carrier which includes a vehicle frame mounted on wheels and a water tank mounted on the frame by a supporting structure which can be moved to elevate the load above the frame. A stabilizing structure is included to which the weight of the vehicle and the load can be transferred to remove that weight from the wheels. Force is applied to the movable supporting structure to raise the tank and this movement is utilized to transfer weight from the wheels to the stabilizing structure, which in this case is the frame itself. Force is applied by a block and tackle arrangement to raise the tank from the frame. A second block and tackle arrangement utilizes that movement, the relative movement between the frame and the tank, to accomplish relative movement between the wheels and the frame whereby to transfer the load between the wheels and frame.
    • 10. 发明授权
    • Mobile cart having a retractable-wheel base system
    • 具有可伸缩轮基座系统的移动车
    • US08016300B2
    • 2011-09-13
    • US12243744
    • 2008-10-01
    • Paul CramerSteven Coffman
    • Paul CramerSteven Coffman
    • B65D19/42
    • B65G7/04B62B5/049F17C2205/0107Y10T137/691
    • A mobile cart for carrying a plurality of fluid canisters. The cart includes a platform configured to support the fluid canisters. The cart also includes a base having a base body and a plurality of wheels movably connected to the base body so that the wheels can be selectively moved with respect to the base body between an extended position and a retracted position. In the extended position, the plurality of wheels extends from the base body so the cart can roll, on the plurality of wheels, over the support surface supporting the cart. In the retracted position, the plurality of wheels is retracted relative to the base body so that the cart cannot roll, on the plurality of wheels, over the support surface.
    • 一种用于承载多个流体罐的移动推车。 推车包括构造成支撑流体罐的平台。 推车还包括具有基体的底座和可移动地连接到基体的多个轮,使得轮可相对于基体在延伸位置和缩回位置之间选择性地移动。 在延伸位置,多个轮从基体延伸,使得推车可以在多个车轮上滚动支撑车的支撑表面。 在缩回位置,多个轮相对于基体缩回,使得推车不能在多个轮上滚动在支撑表面上。