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公开(公告)号：US5520368A
公开(公告)日：1996-05-28
申请号：US421200
申请日：1995-04-13
CPC分类号： B66D3/18 , B66D1/48 , B66D5/04 , Y10S60/907
摘要： An air lifting and balancing unit including a cylinder, a piston in the cylinder, a ball screw affixed to the piston, a ball nut mounted for rotation on the ball screw, a drum mounted on the ball nut, a chain driven by the drum, and centrifugally actuated brakes mounted on the drum for stopping rotation of the drum when the drum exceeds a predetermined acceleration either due to a loss of load or to a loss of air pressure applied to the piston, and a pneumatic circuit in communication with the cylinder for providing air pressure thereto which applies a force on the piston which is at a substantially constant incremental value in opposition to the force exerted by the load applied to the piston through the chain and the drum and the ball screw regardless of variations in said air pressure to thereby cause the speed of the chain to remain substantially constant.
摘要翻译： 一种气动和平衡单元，包括气缸，活塞在气缸中，固定在活塞上的滚珠丝杠，安装在滚珠丝杠上的滚珠螺母，安装在滚珠螺母上的滚筒，由滚筒驱动的链条， 以及安装在滚筒上的离心致动的制动器，用于当滚筒超过预定的加速度时，由于负载的损失或施加到活塞的空气压力的损失而使滚筒停止旋转;以及与滚筒连通的气动回路 提供空气压力，其对活塞施加力，该力与基本上恒定的增量值相反，相反于通过链条和滚筒和滚珠丝杠施加到活塞上的载荷所施加的力，而与所述空气压力的变化无关 从而导致链条的速度基本保持不变。
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公开(公告)号：US5556077A
公开(公告)日：1996-09-17
申请号：US425603
申请日：1995-04-20
CPC分类号： B66D3/18 , B66D1/48 , B66D5/04 , Y10S60/907
摘要： An air lifting and balancing unit including a cylinder, a piston in the cylinder, a ball screw affixed to the piston, a ball nut mounted for rotation on the ball screw, a drum mounted on the ball nut, a chain driven by the drum, and centrifugally actuated brakes mounted on the drum for stopping rotation of the drum when the drum exceeds a predetermined acceleration either due to a loss of load or to a loss of air pressure applied to the piston, and a pneumatic circuit in communication with the cylinder for providing air pressure thereto which applies a force on the piston which is at a substantially constant incremental value in opposition to the force exerted by the load applied to the piston through the chain and the drum and the ball screw regardless of variations in said air pressure to thereby cause the speed of the chain to remain substantially constant.
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公开(公告)号：US5439200A
公开(公告)日：1995-08-08
申请号：US165701
申请日：1993-12-10
CPC分类号： B66D3/18 , B66D1/48 , B66D5/04 , Y10S60/907
摘要： An air lifting and balancing unit including a cylinder, a piston in the cylinder, a ball screw affixed to the piston, a ball nut mounted for rotation on the ball screw, a drum mounted on the ball nut, a chain driven by the drum, and centrifugally actuated brakes mounted on the drum for stopping rotation of the drum when the drum exceeds a predetermined acceleration either due to a loss of load or to a loss of air pressure applied to the piston, and a pneumatic circuit in communication with the cylinder for providing air pressure thereto which applies a force on the piston which is at a substantially constant incremental value in opposition to the force exerted by the load applied to the piston through the chain and the drum and the ball screw regardless of variations in said air pressure to thereby cause the speed of the chain to remain substantially constant.
摘要翻译： 一种气动和平衡单元，包括气缸，活塞在气缸中，固定在活塞上的滚珠丝杠，安装在滚珠丝杠上的滚珠螺母，安装在滚珠螺母上的滚筒，由滚筒驱动的链条， 以及安装在滚筒上的离心致动的制动器，用于当滚筒超过预定的加速度时，由于负载的损失或施加到活塞的空气压力的损失而使滚筒停止旋转;以及与滚筒连通的气动回路 提供空气压力，其对活塞施加力，该力与基本上恒定的增量值相反，相反于通过链条和滚筒和滚珠丝杠施加到活塞上的载荷所施加的力，而与所述空气压力的变化无关 从而导致链条的速度基本保持不变。
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公开(公告)号：US5517821A
公开(公告)日：1996-05-21
申请号：US421201
申请日：1995-04-13
CPC分类号： B66D3/18 , B66D1/48 , B66D5/04 , Y10S60/907
摘要： An air lifting and balancing unit including a cylinder, a piston in the cylinder, a ball screw affixed to the piston, a ball nut mounted for rotation on the ball screw, a drum mounted on the ball nut, a chain driven by the drum, and centrifugally actuated brakes mounted on the drum for stopping rotation of the drum when the drum exceeds a predetermined acceleration either due to a loss of load or to a loss of air pressure applied to the piston, and a pneumatic circuit in communication with the cylinder for providing air pressure thereto which applies a force on the piston which is at a substantially constant incremental value in opposition to the force exerted by the load applied to the piston through the chain and the drum and the ball screw regardless of variations in said air pressure to thereby cause the speed of the chain to remain substantially constant.
摘要翻译： 一种气动和平衡单元，包括气缸，活塞在气缸中，固定在活塞上的滚珠丝杠，安装在滚珠丝杠上的滚珠螺母，安装在滚珠螺母上的滚筒，由滚筒驱动的链条， 以及安装在滚筒上的离心致动的制动器，用于当滚筒超过预定的加速度时，由于负载的损失或施加到活塞的空气压力的损失而使滚筒停止旋转;以及与滚筒连通的气动回路 提供空气压力，其对活塞施加力，该力与基本上恒定的增量值相反，相反于通过链条和滚筒和滚珠丝杠施加到活塞上的载荷所施加的力，而与所述空气压力的变化无关 从而导致链条的速度基本保持不变。
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公开(公告)号：US20090144916A1
公开(公告)日：2009-06-11
申请号：US12329883
申请日：2008-12-08
IPC分类号： E04F11/02 , B21D31/00 , E04F11/112 , B23P11/00
CPC分类号： B21D5/00 , B21D35/00 , B63B27/14 , E01D21/00 , Y10T29/49826
摘要： A gangway comprises at least one component formed from a continuous piece of metal. The at least one component formed from the continuous piece of metal may be a support structure or an underbody, a platform, a ramp, a step, or other support surface. A method for manufacturing such a gangway comprises forming the at least one component from the continuous piece of metal.
摘要翻译： 舷梯包括由连续的金属片形成的至少一个部件。 由连续的金属片形成的至少一个部件可以是支撑结构或底部，平台，斜面，台阶或其它支撑表面。 制造这种通道的方法包括从连续的金属片形成至少一个部件。
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公开(公告)号：US20110225794A1
公开(公告)日：2011-09-22
申请号：US13118397
申请日：2011-05-28
IPC分类号： B23P11/00
CPC分类号： B21D5/00 , B21D35/00 , B63B27/14 , E01D21/00 , Y10T29/49826
摘要： A gangway comprises at least one component formed from a continuous piece of metal. The at least one component formed from the continuous piece of metal may be a support structure or an underbody, a platform, a ramp, a step, or other support surface. A method for manufacturing such a gangway comprises forming the at least one component from the continuous piece of metal.
摘要翻译： 舷梯包括由连续的金属片形成的至少一个部件。 由连续的金属片形成的至少一个部件可以是支撑结构或底部，平台，斜面，台阶或其它支撑表面。 制造这种通道的方法包括从连续的金属片形成至少一个部件。
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公开(公告)号：US20100031456A1
公开(公告)日：2010-02-11
申请号：US12468704
申请日：2009-05-19
IPC分类号： E04F11/104 , B23P11/00
CPC分类号： E04H17/14 , B21D39/06 , B63B27/14 , E04F11/00 , E04F11/112 , E04F11/181 , Y10T29/49826 , Y10T29/49936 , Y10T29/49947 , Y10T29/49996
摘要： A post to be used in conjunction with a gangway or other fall restraint equipment where the post defines an aperture having an upper portion and a lower portion such that the upper portion is configured to allow a link of a chain to pass there through while the lower portion allows the link to pass through in one orientation but prevents the link from passing through in a second orientation traverse to the first orientation.
摘要翻译： 与舷梯或其他坠落约束装置结合使用的柱，其中柱限定具有上部和下部的孔，使得上部构造成允许链的连杆通过其中，而下部 部分允许连杆在一个方向上通过，但是阻止连杆以第二方向穿过第一方向。
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公开(公告)号：US20100031455A1
公开(公告)日：2010-02-11
申请号：US12487408
申请日：2009-06-18
CPC分类号： E04H17/14 , B21D39/06 , B63B27/14 , E04F11/00 , E04F11/112 , E04F11/181 , Y10T29/49826 , Y10T29/49936 , Y10T29/49947 , Y10T29/49996
摘要： Uprights and lateral or connecting posts to be used in conjunction with a gangway or other fall restraint equipment where the uprights and posts are created by cutting portions of integral, continuous pieces of tubular metal rather than welding smaller pieces of stock material together. Sidepost assemblies or handrails are created by connecting the uprights and posts together.
摘要翻译： 立柱和横向或连接柱与舷梯或其他坠落约束设备结合使用，其中立柱和立柱通过切割一体的连续的管状金属片而不是将较小的原料堆焊在一起而产生。 通过将立柱和柱连接在一起来创建Sidepost组件或扶手。
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公开(公告)号：USD254608S
公开(公告)日：1980-04-01
申请号：US825550
申请日：1977-08-18
申请人： Paul S. Mefferd , Thomas A. Mefferd
设计人： Paul S. Mefferd , Thomas A. Mefferd
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公开(公告)号：US08869335B2
公开(公告)日：2014-10-28
申请号：US13118397
申请日：2011-05-28
CPC分类号： B21D5/00 , B21D35/00 , B63B27/14 , E01D21/00 , Y10T29/49826
摘要： A gangway comprises at least one component formed from a continuous piece of metal. The at least one component formed from the continuous piece of metal may be a support structure or an underbody, a platform, a ramp, a step, or other support surface. A method for manufacturing such a gangway comprises forming the at least one component from the continuous piece of metal.
摘要翻译： 舷梯包括由连续的金属片形成的至少一个部件。 由连续的金属片形成的至少一个部件可以是支撑结构或底部，平台，斜面，台阶或其它支撑表面。 制造这种通道的方法包括从连续的金属片形成至少一个部件。
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