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公开(公告)号：US11479449B2
公开(公告)日：2022-10-25
申请号：US15764679
申请日：2017-02-16
发明人： Ziming Kou , Guijun Gao , Gongjun Cui , Jing Zhang , Haiqing Wang , Xueliang Wei
摘要： A vertical lifting device and method are provided. The vertical lifting device includes a fixed frame fixed to a foundation. A first cavity allowing passage of a lifting rope is provided in the middle of the fixed frame. A sliding frame moving horizontally on the fixed frame is arranged above the fixed frame. A second cavity allowing passage of the lifting rope is provided in the middle of the sliding frame. At least two stepping vehicles alternately lowering or lifting weights are arranged on the sliding frame and move on the sliding frame. The stepping vehicles are spaced in preset distances. The lifting rope penetrates through the stepping vehicles in sequence. Each stepping vehicle is provided with a clamping part clamping the lifting rope and a driving mechanism driving the stepping vehicle to move on the sliding frame.
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公开(公告)号：US11279601B2
公开(公告)日：2022-03-22
申请号：US15477733
申请日：2017-04-03
摘要： A sheave assembly for use in a handling system or tensioning system, the sheave assembly having one or more sheaves arranged about a shaft and cone sub-assembly. The shaft and cone sub-assembly may include one or more pairs of bearing cones configured to interface with a plurality of bearing rollers to facilitate rotation of the one or more sheaves about the shaft and cone sub-assembly. The shaft and cone sub-assembly may be configured to be arranged in a fixed rotational position during handling or tensioning operations. The shaft and cone sub-assembly may further be configured to be rotated or repositioned about a central, longitudinal axis of the sub-assembly. The shaft and cone sub-assembly may be configured to rotate independent of the sheave(s) so as to reposition the one or more pairs of cones with respect to applied loading on the sheave assembly from the handling or tensioning operations.
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公开(公告)号：US11214470B2
公开(公告)日：2022-01-04
申请号：US16250018
申请日：2019-01-17
发明人： Derek Smith
摘要： A method of spooling a crane rope (2) onto a crane drum through a crane rope spooling system (1) from a reel (31) under a predetermined back tension is described and includes the steps of: unspooling the crane rope (2) from a reel (31) and passing the crane rope through a tensioning system (10) comprising a primary back tensioner (12) and a secondary back tensioner (16); gripping the crane rope (2) within the secondary back tensioner (16) and thereby preloading the crane rope (2) with tension prior to the crane rope (2) passing through the primary back tensioner (12); and applying a predetermined back tension to the crane rope (2) with the primary back tensioner (12) as the crane rope (2) is being spooled onto the crane drum under the predetermined back tension. A crane rope spooling system (1) for spooling crane rope (2) onto a crane drum under a predetermined back tension is also described, said system (10) comprising a tensioning system (10) comprising at least a primary back tensioner (12) and a secondary back tensioner (16) and a reel (31).
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公开(公告)号：US11112033B2
公开(公告)日：2021-09-07
申请号：US16866720
申请日：2020-05-05
摘要： A machine for extracting a ductile pipe. The machine has a vise which can grip the pipe, and a wire clamp. Each of the wire clamp and vise are supported on a carriage which is movable relative to a frame. This enables the vise to grip and pull the ductile pipe. Additionally, a wire strand may be disposed through the pipe from a far end to the end at which the machine is placed. The wire clamp allows the machine to pre-stress the strand to improve the extraction of the ductile pipe.
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公开(公告)号：US11034559B2
公开(公告)日：2021-06-15
申请号：US16697659
申请日：2019-11-27
申请人： Mark Vanden Avond
发明人： Mark Vanden Avond
摘要： A portable pulling device and method therefore, the portable pulling device including a chassis frame, a power source, anchoring elements, a spool, a rope or cable attached thereon, and a centrifugal clutch with a chain or belt drive system allowing the ability to pull out the rope when the power source is at idle. The device further contains frame propulsion components such as wheels, skis, or tracks to facilitate movement of the pulling device into and through a confined area such as a forest or a barren area.
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公开(公告)号：US20200277025A1
公开(公告)日：2020-09-03
申请号：US16879402
申请日：2020-05-20
申请人： Svitzer A/S
发明人： Thomas BANGSLUND
摘要： Described is a tugboat 1 for assisting a marine vessel 2 to manoeuvre. The tugboat 1 comprises a hull 11 having a perimeter P. The tugboat 1 also comprises a line handling system 10 comprising a line guide mechanism 100. The line guide mechanism 100 protrudes, or is positionable to protrude, away from the hull 11 for guiding a line 20 of the marine vessel 2 towards a predetermined region R of the perimeter P.
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公开(公告)号：US10759639B2
公开(公告)日：2020-09-01
申请号：US15580534
申请日：2016-06-17
发明人： Nishant Nadagouda
摘要： The invention provides a linear winch assembly (10), gripper assembly (14, 16) and a method of use. The linear winch assembly comprises a first gripper assembly comprising a first gripper block (28b) operable to grip a cable and a second gripper assembly comprising a second gripper block operable to grip a cable (17). The winch assembly comprises a first mechanism (30, 31, 32) operable to move at least part of the first gripper block out of the pathway of a cable connector to allow the connector (19) to pass through the first gripper assembly. The winch assembly also comprises a second mechanism operable to move at least part of the second gripper block out of the pathway of a cable connector to allow the connector to pass through the second gripper assembly. It also comprises a pivotable lid (28a).
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公开(公告)号：US10549967B1
公开(公告)日：2020-02-04
申请号：US16419094
申请日：2019-05-22
申请人： Randoulf Weis
发明人： Randoulf Weis
摘要： A hunted game winching assembly for drawing hunted game through uneven area includes a winch has a cable is wrapped therearound when the winch is turned on to rotate in a first direction. The cable is drawn off of the winch when the winch is urged to rotate in a second direction. A harness is releasably coupled to the cable and the harness is positionable around hunted game. In this way the winch can draw the hunted game toward the winch when the winch is turned on the rotate in the first direction. A pair of handles is each of the handles is coupled to and extends in opposite directions from the winch. Each of the handles can be gripped to positioned the winch between a user and the hunted game.
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公开(公告)号：US20190186653A1
公开(公告)日：2019-06-20
申请号：US16283488
申请日：2019-02-22
发明人： Michael Tjader
IPC分类号： F16L1/028 , B66D3/08 , F16L55/165 , B66D3/00
CPC分类号： F16L1/028 , B66D3/006 , B66D3/08 , F16L55/1658
摘要： A pipe replacement system and cable guide frame are shown. Configurations are shown that include plurality of guide pulleys attached to the cable guide frame to define a curved path between a pipe to be replaced and a cable pulling system. Configurations are shown where a pipe breaking tool is pulled over the plurality of guide pulleys for ease of removal after a replacement operation. Configurations are also shown that include a stationary splitter adjacent to the cable pulling system to prevent jamming of the cable pulling system.
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公开(公告)号：US20190177136A1
公开(公告)日：2019-06-13
申请号：US16201869
申请日：2018-11-27
申请人： Mark S. Soderberg
发明人： Mark S. Soderberg
摘要： A portable winch system includes a frame, a pair of wheels, a motor that is secured to the frame; and a capstan that is secured to the frame and that is rotatable via the motor. A rope is wound about the capstan in a manner that enables a user to grasp a tail end of the rope and induce friction between the capstan and the portion of the rope that is wound about the capstan. A tow end of the rope is attachable to an object to be pulled by the winch. An input guide attached to the frame is configured to receive the rope and direct the rope toward the capstan as the object is pulled toward the winch. An alignment guide attached to the frame is configured to contact the rope and align the rope about the capstan as the rope is wound about the capstan.
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