公开(公告)号：US20080063471A1

公开(公告)日：2008-03-13

申请号：US11945725

申请日：2007-11-27

申请人： Lee Veldboom ,  Kevin Vrondran ,  Jeremy Johnson

发明人： Lee Veldboom ,  Kevin Vrondran ,  Jeremy Johnson

IPC分类号： E02D29/14

CPC分类号： E02D29/1418 ,  E02D29/1427

摘要： A swing-out manhole cover assembly having at least one ramp to facilitate opening and closing the cover. The manhole cover assembly includes a frame, a cover, a swing assembly and at least one ramp. As the cover swings open away from the frame about the swing assembly, the ramp imparts linear translation to the cover separating the cover from the frame slightly. As the cover swings back to close the manhole cover, the ramp reverses the linear translation and the cover returns back to the frame. A spring may be included to bias the cover in the closed position.

摘要翻译： 摆放式人孔盖组件具有至少一个斜面以便于打开和关闭盖。 井盖组件包括框架，盖，摆动组件和至少一个斜坡。 当盖子围绕摆动组件摆动离开框架时，斜坡使得将盖子与框架稍微分开的盖子线性平移。 当盖子向后摆动以关闭人孔盖时，斜坡反转线性平移，盖子返回到框架。 可以包括弹簧以将盖偏置在关闭位置。

公开(公告)号：US20070274779A1

公开(公告)日：2007-11-29

申请号：US11420083

申请日：2006-05-24

申请人： Jeremy Johnson ,  Lee Veldboom ,  Scott Beal ,  Herbert Barnum ,  William Austin ,  James Malpass ,  Todd Loviska ,  Brian Rachwitz ,  Rex Garringer ,  John Snyder

发明人： Jeremy Johnson ,  Lee Veldboom ,  Scott Beal ,  Herbert Barnum ,  William Austin ,  James Malpass ,  Todd Loviska ,  Brian Rachwitz ,  Rex Garringer ,  John Snyder

IPC分类号： E02D29/14

CPC分类号： E02D29/1418 ,  Y10T137/7021

摘要： A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.

摘要翻译： 具有平齐表面和外部枢转轴的升降机辅助井盖组件。 该盖包括延伸超出盖的一般周边的安装片。 安装翼片可以连接到与框架螺纹接合的轴。 弹簧可以安装在框架和安装突片之间，例如在套筒中，以提供提升盖子的机械辅助。 套管可以设置在人孔开口的外部，在那里它不阻挡进入人孔开口。