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    • 9. 发明授权
    • Pump jack assembly for wells
    • 水泵千斤顶组合井
    • US4380150A
    • 1983-04-19
    • US119378
    • 1980-02-07
    • John C. Carlson
    • John C. Carlson
    • F04B47/04F15B1/02F15B13/02
    • F04B47/04
    • One pair of actuating piston and cylinder assemblies are operatively connected to the polish or sucker rod of the pump and are extended or retracted by hydraulic fluid. A further pair of piston and cylinder assemblies are operatively connected to the polish rod and are operatively connected on the underside thereof to an accumulator that includes an inert gas over oil with the gas being supplied under adjustable control conditions from a cylinder or source of high pressure gas so that these further pair of piston and cylinder assemblies counteract the weight of the pump system. On the downstroke, pressure is supplied to the upper sides of all four piston and cylinder assemblies with the two further piston and cylinder assemblies supporting the weight via the accumulator. The gas pressure is adjustable to support the desired proportion of the weight of the pump assembly and the oil being pumped thereby and other accumulators are provided in the circuits to cushion the shock load at either end of the stroke of the pump. Automatically operated switch valves and adjustable flow dividers control the oil flow to the piston and cylinder assemblies at either end of the stroke and the speed of the stroke respectively.
    • 一对致动活塞和气缸组件可操作地连接到泵的抛光器或抽油杆,并由液压流体延伸或缩回。 另一对活塞和气缸组件可操作地连接到抛光杆,并且在其下侧可操作地连接到蓄能器,该蓄能器包括在油上的惰性气体,气体在可调节的控制条件下从气缸或高压源供应 使得这些另外的一对活塞和气缸组件抵消了泵系统的重量。 在下行程中,压力被供应到所有四个活塞和气缸组件的上侧,两个另外的活塞和气缸组件通过蓄能器支撑重量。 气体压力是可调节的,以支持泵组件的重量和被泵送的油的所需比例,并且其中蓄电池设置在电路中以缓冲泵冲程两端的冲击负荷。 自动操作的开关阀和可调分流器分别控制在行程的两端和行程的速度上的活塞和气缸组件的油流量。
    • 10. 发明授权
    • Self-tensioning reel
    • 自张紧卷轴
    • US4124176A
    • 1978-11-07
    • US861300
    • 1977-12-16
    • John C. CarlsonJeremia P. Starace
    • John C. CarlsonJeremia P. Starace
    • B65H75/14B65H49/30B65H59/04B65H75/22
    • B65H49/305B65H59/04B65H75/22B65H2701/5122
    • A self-tensioning wire reel comprises two flanges threaded together such that, when a brake shoe applies a braking force to one flange, the other flange is free to continue rotating. This rotation on the threaded hubs brings the flanges closer together, exerting a lateral force on the wire coil therebetween and thus keeping the coil sufficiently tight to prevent binding during the unreeling operation. The brake shoe is a resilient cylindrical disk applied to the outer rim of one flange when tension is relieved on the wire. The tightness of fit between the disk brake and the shaft upon which it rotates controls the frictional braking force.
    • 自张紧钢丝卷轴包括两个螺纹连接在一起的凸缘,使得当制动蹄向一个凸缘施加制动力时,另一个凸缘自由地继续旋转。 螺纹轮毂上的这种旋转使凸缘更靠近在一起,在其间的线圈线圈上施加横向力,因此使线圈足够紧密以防止在卷绕操作期间的结合。 制动蹄是一个弹性的圆柱形盘片,当在线材上松开张力时,其应用于一个法兰的外缘。 盘式制动器与其旋转的轴之间的紧密度适合于摩擦制动力。