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公开(公告)号:US07341398B2
公开(公告)日:2008-03-11
申请号:US11420083
申请日:2006-05-24
申请人: Jeremy I. Johnson , Lee M. Veldboom , Scott B. Beal , Herbert Carl Barnum , William R. Austin , James F. Malpass , Todd C. Loviska , Brian J. Rachwitz , Rex A. Garringer , John H. Snyder
发明人: Jeremy I. Johnson , Lee M. Veldboom , Scott B. Beal , Herbert Carl Barnum , William R. Austin , James F. Malpass , Todd C. Loviska , Brian J. Rachwitz , Rex A. Garringer , John H. Snyder
IPC分类号: B65D43/18
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。
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公开(公告)号:US20080138153A1
公开(公告)日:2008-06-12
申请号:US11969361
申请日:2008-01-04
申请人: Jeremy I. Johnson , Lee M. Veldboom , Scott B. Beal , Herbert Carl Barnum , William R. Austin , James F. Malpass , Todd C. Loviska , Brian J. Rachwitz , Rex A. Garringer , John H. Snyder
发明人: Jeremy I. Johnson , Lee M. Veldboom , Scott B. Beal , Herbert Carl Barnum , William R. Austin , James F. Malpass , Todd C. Loviska , Brian J. Rachwitz , Rex A. Garringer , John H. 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。
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