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公开(公告)号：US08449216B2
公开(公告)日：2013-05-28
申请号：US13236823
申请日：2011-09-20
IPC分类号： E02D29/14
CPC分类号： E02D29/1463
摘要： A manhole cover assembly includes a frame that includes a central opening and a safety stop portion, and a cover hingedly attached to the frame such that the cover is pivotable between a closed position covering the central opening and an open position providing access to the central opening. A safety device is connected to the frame and the cover for locking the cover in the open position. Movement of the cover to the open position automatically moves the safety device to a locked position in which said safety device engages the safety stop portion and prevents movement of the cover to the closed position. When the cover is open, the safety device is manually movable between the locked position and an unlocked position in which the safety device is disengaged from the safety stop and permits movement of the cover to the closed position.
摘要翻译： 井盖组件包括框架，该框架包括中心开口和安全止动部分，以及铰接地附接到框架的盖，使得盖可在覆盖中心开口的关闭位置和打开位置之间枢转，从而提供通向中心开口 。 安全装置连接到框架和盖子上，用于将盖子锁定在打开位置。 将盖子移动到打开位置将自动地将安全装置移动到锁定位置，在该位置，所述安全装置与安全停止部分接合并防止盖子移动到关闭位置。 当盖打开时，安全装置可手动地在锁定位置和解锁位置之间移动，在该解锁位置，安全装置与安全挡板脱离，并允许盖移动到关闭位置。
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公开(公告)号：US20090123227A1
公开(公告)日：2009-05-14
申请号：US11938444
申请日：2007-11-12
IPC分类号： E02D29/14
CPC分类号： E02D29/1445 , Y10T137/7021
摘要： A one-piece, unitary manhole cover has dual lifting ports that drain through the outer circumferential edge of the cover. A lifting channel runs from the interior of the upper face out to the outer circumferential edge. A lifting bar spans the lifting channel and defines an ergo lifting port and a pry bar lifting port. Both the ergo lifting port and the pry bar lifting port drain through the outer circumference of the manhole cover.
摘要翻译： 一体式整体式井盖具有通过盖的外圆周边缘排出的双提升口。 提升通道从上表面的内部延伸到外周缘。 提升杆跨越提升通道，并定义了一个ergo提升口和一个撬杆提升口。 ergo提升口和撬杆提升口都通过人孔盖的外围排出。
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公开(公告)号：US07905679B2
公开(公告)日：2011-03-15
申请号：US11938444
申请日：2007-11-12
IPC分类号： E02D29/14
CPC分类号： E02D29/1445 , Y10T137/7021
摘要： A one-piece, unitary manhole cover has dual lifting ports that drain through the outer circumferential edge of the cover. A lifting channel runs from the interior of the upper face out to the outer circumferential edge. A lifting bar spans the lifting channel and defines an ergo lifting port and a pry bar lifting port. Both the ergo lifting port and the pry bar lifting port drain through the outer circumference of the manhole cover.
摘要翻译： 一体式整体式井盖具有通过盖的外圆周边缘排出的双提升口。 提升通道从上表面的内部延伸到外周缘。 提升杆跨越提升通道，并定义了一个ergo提升口和一个撬杆提升口。 ergo提升口和撬杆提升口都通过人孔盖的外围排出。
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公开(公告)号：US07726903B2
公开(公告)日：2010-06-01
申请号：US11972153
申请日：2008-01-10
IPC分类号： E06B11/00
CPC分类号： E02D29/1427
摘要： A manhole system that includes a manhole cover and a frame with at least one locking device for maintaining the manhole cover in place on the frame. The locking device is selectively movable between locked and unlocked positions to selectively engage the cover to hold the cover in place on the frame. The locking device may be rotatable between “locked” and “unlocked” positions about an axis perpendicular to the plane of the cover. The locking device may includes a plurality of cam locks that engage the outer circumferential edge of the cover and are configured to increasingly clamp down the cover against the frame with increasing rotation from “unlocked” position to “locked” position. A plurality of locks can be arranged around frame to engage the cover at different locations.
摘要翻译： 一种人孔系统，其包括人孔盖和具有至少一个锁定装置的框架，用于将所述人孔盖保持在所述框架上的适当位置。 锁定装置可选择性地在锁定位置和解锁位置之间移动，以选择性地接合盖子以将盖子保持在框架上的适当位置。 锁定装置可以围绕垂直于盖的平面的轴在“锁定”和“解锁”位置之间旋转。 锁定装置可以包括多个凸轮锁，其接合盖的外周边缘并且构造成随着从“解锁”位置到“锁定”位置的增加的旋转而越过越过地将盖抵住框架。 可以围绕框架布置多个锁以在不同位置处接合盖。
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公开(公告)号：US08206058B2
公开(公告)日：2012-06-26
申请号：US12173276
申请日：2008-07-15
CPC分类号： F41H5/223 , E02D29/14 , E02D29/1463
摘要： A manhole cover assembly includes a frame defining an access opening, first and second mounting posts extending from the frame, and a cover for covering the access opening. The cover includes first and second mounting recesses that pivotally receive the first and second mounting posts respectively, such that said cover is movable between an open position and a closed position by rotating the recesses about the posts. At least one of the recesses includes a locking groove that aligns with the post when the cover is moved to an open position to lock the cover in the open position.
摘要翻译： 人孔盖组件包括限定出入口的框架，从框架延伸的第一和第二安装柱以及用于覆盖进入开口的盖。 所述盖包括分别枢转地接收所述第一和第二安装柱的第一和第二安装凹部，使得所述盖可以通过围绕所述柱旋转所述凹部而在打开位置和关闭位置之间移动。 凹槽中的至少一个包括当盖移动到打开位置以将盖锁定在打开位置时与支柱对准的锁定槽。
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公开(公告)号：US20100012671A1
公开(公告)日：2010-01-21
申请号：US12173276
申请日：2008-07-15
IPC分类号： B65D51/04
CPC分类号： F41H5/223 , E02D29/14 , E02D29/1463
摘要： A manhole cover assembly includes a frame defining an access opening, first and second mounting posts extending from the frame, and a cover for covering the access opening. The cover includes first and second mounting recesses that pivotally receive the first and second mounting posts respectively, such that said cover is movable between an open position and a closed position by rotating the recesses about the posts. At least one of the recesses includes a locking groove that aligns with the post when the cover is moved to an open position to lock the cover in the open position.
摘要翻译： 人孔盖组件包括限定出入口的框架，从框架延伸的第一和第二安装柱以及用于覆盖进入开口的盖。 所述盖包括分别枢转地接收所述第一和第二安装柱的第一和第二安装凹部，使得所述盖可以通过围绕所述柱旋转所述凹部而在打开位置和关闭位置之间移动。 凹槽中的至少一个包括当盖移动到打开位置以将盖锁定在打开位置时与支柱对准的锁定槽。
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公开(公告)号：US20130071183A1
公开(公告)日：2013-03-21
申请号：US13236823
申请日：2011-09-20
IPC分类号： E02D29/14
CPC分类号： E02D29/1463
摘要： A manhole cover assembly includes a frame that includes a central opening and a safety stop portion, and a cover hingedly attached to the frame such that the cover is pivotable between a closed position covering the central opening and an open position providing access to the central opening. A safety device is connected to the frame and the cover for locking the cover in the open position. Movement of the cover to the open position automatically moves the safety device to a locked position in which said safety device engages the safety stop portion and prevents movement of the cover to the closed position. When the cover is open, the safety device is manually movable between the locked position and an unlocked position in which the safety device is disengaged from the safety stop and permits movement of the cover to the closed position.
摘要翻译： 井盖组件包括框架，该框架包括中心开口和安全止动部分，以及铰接地附接到框架的盖，使得盖可在覆盖中心开口的关闭位置和打开位置之间枢转，从而提供通向中心开口 。 安全装置连接到框架和盖子上，用于将盖子锁定在打开位置。 将盖子移动到打开位置将自动地将安全装置移动到锁定位置，在该位置，所述安全装置与安全停止部分接合并防止盖子移动到关闭位置。 当盖打开时，安全装置可手动地在锁定位置和解锁位置之间移动，在该解锁位置，安全装置与安全挡板脱离，并允许盖移动到关闭位置。
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公开(公告)号：US07832958B2
公开(公告)日：2010-11-16
申请号：US11945725
申请日：2007-11-27
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。
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公开(公告)号：US20090180832A1
公开(公告)日：2009-07-16
申请号：US11972153
申请日：2008-01-10
IPC分类号： E02D29/14
CPC分类号： E02D29/1427
摘要： A manhole system that includes a manhole cover and a frame with at least one locking device for maintaining the manhole cover in place on the frame. The locking device is selectively movable between locked and unlocked positions to selectively engage the cover to hold the cover in place on the frame. The locking device may be rotatable between “locked” and “unlocked” positions about an axis perpendicular to the plane of the cover. The locking device may includes a plurality of cam locks that engage the outer circumferential edge of the cover and are configured to increasingly clamp down the cover against the frame with increasing rotation from “unlocked” position to “locked” position. A plurality of locks can be arranged around frame to engage the cover at different locations.
摘要翻译： 一种人孔系统，其包括人孔盖和具有至少一个锁定装置的框架，用于将所述人孔盖保持在所述框架上的适当位置。 锁定装置可选择性地在锁定位置和解锁位置之间移动，以选择性地接合盖子以将盖子保持在框架上的适当位置。 锁定装置可以围绕垂直于盖的平面的轴在“锁定”和“解锁”位置之间旋转。 锁定装置可以包括多个凸轮锁，其接合盖的外周边缘并且构造成随着从“解锁”位置到“锁定”位置的增加的旋转而越过越过地将盖抵住框架。 可以围绕框架布置多个锁以在不同位置处接合盖。
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