Retractable hose extension for a vacuum

    公开(公告)号:US20050246855A1

    公开(公告)日:2005-11-10

    申请号:US10843497

    申请日:2004-05-10

    摘要: A retractable hose extension for a vacuum having an expandable hose within a containment structure, a first coupling at the first end of the hose and in the first end of the containment structure for connecting the hose to a vacuum, a valve at the second end of the hose, and either a door or other releasable retention device for the hose. Preferably, the valve is an iris valve. Two fixed embodiment and one portable embodiment exist. The first fixed embodiment is inserted within a wall. The second fixed embodiment is rotatably attached to a tube contained within or running below a ceiling and extending from a vacuum system.

    Variably curved track-mounted amusement ride
    2.
    发明申请
    Variably curved track-mounted amusement ride 审中-公开
    可变弯曲的轨道式游乐设施

    公开(公告)号:US20050178283A1

    公开(公告)日:2005-08-18

    申请号:US10679780

    申请日:2003-10-06

    IPC分类号: A63G7/00 A63G1/00

    CPC分类号: A63G7/00

    摘要: A variably curved track-mounted amusement ride having, in a first embodiment, at least one outside curve and at least one inside curve, each lying substantially within a vertical plane and each having an axis of symmetry which is substantially horizontal. The vertical distance occupied by an outside curve is less than that occupied by an inside curve. The track can retain a cart which runs on the track no matter what the orientation of the body of the cart is with respect to the track. Any means that is well known in the art can be used to raise the cart to the beginning of the track. No portion of the track, except optionally the lowest level, lies directly below at least the farthest outside portion of an outside curve. A second embodiment has only outside curves.

    摘要翻译: 在第一实施例中,具有至少一个外部曲线和至少一个内部曲线的可变弯曲的轨道安装的游乐设施,每个内部曲线基本上位于垂直平面内,并且每个具有基本水平的对称轴。 外部曲线占据的垂直距离小于内部曲线所占据的垂直距离。 轨道可以保持在轨道上运行的推车,而不管车的车身的取向相对于轨道是什么。 可以使用本领域众所周知的任何方式将推车推向轨道的开头。 轨道的任何部分,除了可选的最低水平,都位于至少外部曲线的最远外侧部分的正下方。 第二实施例仅具有外部曲线。