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    • 4. 发明授权
    • Enhanced vehicle barrier system
    • 增强车辆障碍系统
    • US07845877B2
    • 2010-12-07
    • US11803445
    • 2007-05-14
    • Matthew A. GelfandBrad Grubb
    • Matthew A. GelfandBrad Grubb
    • E01F13/08
    • E01F13/12
    • An enhanced vehicle barrier system. The enhanced vehicle barrier system including bases located on opposite sides of an area through which a vehicle may pass, first and second arms hingably mechanically coupled to a base, first, second and third members, a raising/lowering mechanism, and a cable in mechanical communication with at least one of the first, second, and third members, the cable having connecting points located on opposite sides of the area through which a vehicle may pass, and wherein, in one position, at least portions of the first, second, and third members and the cable may be high enough to encounter a front of a vehicle.
    • 增强车辆屏障系统。 所述增强型车辆屏障系统包括位于车辆可以通过的区域的相对侧上的基座,第一和第二臂可铰接地机械联接到基座,第一,第二和第三构件,升降机构和机械 与第一,第二和第三构件中的至少一个构件的连通,所述电缆具有位于车辆可以通过的区域的相对侧上的连接点,并且其中,在一个位置中,所述第一,第二和第三构件的至少一部分, 并且第三构件和电缆可能足够高以遇到车辆的前部。
    • 9. 发明授权
    • Energy absorbing system
    • 能量吸收系统
    • US07785031B2
    • 2010-08-31
    • US10504068
    • 2003-02-06
    • Joseph VellozziMatthew A. GelfandJohn S. PanerNorman D. MackenzieShubin RuanD. Lance Bullard, Jr.Dean C. Alberson
    • Joseph VellozziMatthew A. GelfandJohn S. PanerNorman D. MackenzieShubin RuanD. Lance Bullard, Jr.Dean C. Alberson
    • E01F15/00
    • B61L29/08E01F13/028E01F13/123
    • A heavy duty ground retractable automobile barrier for a railroad crossing. Concrete bunkers are placed at each side of a roadway. An upstanding concrete-filled steel pipe fixed in each bunker has a sleeve for rotational and axial movement. Shock absorbers are mounted on each sleeve. A net extends across the road and is attached to the opposite ends of the shock absorbers. Collision of an automobile with the net creates tensile forces in the net. The shock absorbers expand while rotating about the pipe's axis in response to tensile forces from the net that meet or exceed a minimum threshold. Forces from the net pass through the axis of the steel pipe. The net is stored in a pit transverse the roadway parallel to the railroad tracks and is raised and lowered as appropriate. The net includes a cable that extends across the road in a wave pattern, having peaks, valleys and midpoints, wherein tangents of the wave midpoints are at least 90 degrees from tangents of the peaks and valleys.
    • 铁路通道的重型地面可伸缩汽车屏障。 混凝土沙坑位于道路的两侧。 固定在每个沙坑中的直立混凝土填充钢管具有用于旋转和轴向移动的套筒。 减震器安装在每个套筒上。 一个网遍及道路,并连接在减震器的两端。 汽车与网的碰撞在网中产生拉力。 响应于来自网的拉力而达到或超过最小阈值,减震器在绕管的轴线旋转的同时膨胀。 网中的力量通过钢管的轴线。 网被存放在与铁路轨道平行的道路横向的坑中,并且适当地升高和降低。 网络包括以波纹形式延伸穿过道路的电缆,具有峰值,谷值和中点,其中波峰中点的切线与峰谷的切线至少为90度。