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公开(公告)号：US20240328255A1
公开(公告)日：2024-10-03
申请号：US18618410
申请日：2024-03-27
申请人： Fourth Arrow, LLC
摘要： A nestable climbing stick includes a central frame member, steps, and gripping feet that can be formed from a single piece of material. The climbing stick steps projecting from a central frame member. The steps define an angle in the range of 140 degrees to 160 degrees and are angled forward away from the structure to which the climbing stick is mounted. A pair of gripping feet project rearwardly from each of two mounting legs which project rearwardly from the central frame member. The legs form an angle in a range from twenty degrees to forty degrees. The gripping feet are extensions of the legs. The feet have different configurations which help the climbing stick to be securely mounted.
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公开(公告)号：US11905759B2
公开(公告)日：2024-02-20
申请号：US16813603
申请日：2020-03-09
申请人： INWESCO INCORPORATED
发明人： David L. Morris
摘要： A pole step apparatus for fiberglass utility poles can have a supporting body is disclosed, having a bended portion with a brace on the supporting body; a grip surface distal to the bended portion; a nut on a threaded portion of the supporting body to tighten the brace toward the bended portion via the threaded portion of the supporting body; a passthrough in the brace formed can accommodate a supporting body and resists rotation; the bended portion is formed on the supporting body at a 90-degree angle; an arc is formed on the brace adjacent to the bended portion; and the brace resists rotation via a non-cylindrical, anti-rotational portion of the supporting body.
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公开(公告)号：US11697965B2
公开(公告)日：2023-07-11
申请号：US16832765
申请日：2020-03-27
申请人： OD TECH PTY LTD
发明人： Peter O'Donnell , Ian Johnson , George Rezk
摘要： A ladder safety mechanism comprises at least one clamp, preferably a pair of spaced apart clamps, attachable part way along a ladder, to secure the ladder to part of a structure. In some embodiments, the mechanism includes at least one manually operated actuator, such as a rope or cable, coupled to the at least one clamp to enable a user located at the bottom of the ladder to open the at least one clamp to receive the part of a structure. In some embodiments, the at least one clamp is automatically secured to the part of the structure by placing the clamp onto the structure. The at least one manually operated actuator also enables a user located at the bottom of the ladder to open the at least one clamp to release the part of the structure. The at least one clamp is oriented substantially perpendicularly to a part of the structure to which the ladder is to be attached.
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公开(公告)号：US20230151692A1
公开(公告)日：2023-05-18
申请号：US17529099
申请日：2021-11-17
申请人： Curt Davidson
发明人： Curt Davidson
摘要： A modular ladder having a single, central column for supporting radiating steps is shown and described. Steps are pivotally mounted on the central column to generate attachable modules. The steps fold up to a stowed position to minimize bulk when the ladder is not in use, and fold down to a nearly but not quite perpendicular position to facilitate climbing. The steps are held frictionally in the stowed position and by gravity in a deployed position when nearly perpendicular to the central mast. The ladder has a removable foot module for stability when propping the ladder on the ground. Each module bearing steps includes an integral loop for attachment of anchoring straps when desired.
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公开(公告)号：US11540506B2
公开(公告)日：2023-01-03
申请号：US16946299
申请日：2020-06-15
申请人： ARDISAM, INC.
发明人： Bryant Haakenson , Michael Furseth , Scott Nickell , Blake Otto
摘要： A tree stand includes an activity rail assembly rotatably attached to a chair. The activity rail assembly is rotatable among a first stowed position in which the activity rail assembly is oriented upright, a second stowed position in which the activity rail assembly is oriented downwardly, and one or more deployed positions between the first stowed position and the second stowed position. The activity rail assembly is extendable and retractable between a first position and a second position, wherein when the activity rail assembly is in the first position, a horizontal activity rail portion is closer to the chair than when the activity rail assembly is in the second position. The tree stand may further include a platform to support the chair, and, optionally, a ladder portion to support the platform.
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公开(公告)号：US20210205667A1
公开(公告)日：2021-07-08
申请号：US17110003
申请日：2020-12-02
申请人： Matthew Garis
发明人： Matthew Garis
摘要： Tree-mountable climbing stick devices and methods of use are disclosed herein. A climbing stick can include a main strut having a first end, a second end, and an attachment member, a first attachment step located on the first end, the first attachment step comprising a first step and a first standoff that is configured to engage with a tree, a second attachment step located on the second end, the second attachment step comprising a second step and a second standoff that is configured to engage with the tree, and the first attachment step and the second attachment step each being configured to be rotated from a stored state to a deployed state.
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公开(公告)号：US20210189801A1
公开(公告)日：2021-06-24
申请号：US16756936
申请日：2018-10-15
申请人： MAX BÖGL WIND AG
发明人： Thorsten Betz , Stefan Bögl
摘要： A tower segment for at least a section of a tower includes a tower segment defining an interior, a longitudinal axis, and a wall, and a supply structural segment preassembled in the interior of the tower segment extending along a the longitudinal axis of the tower segment. The supply structural segment is movable relative to the tower segment and connected to the wall of the tower segment so that the supply structural segment can be moved at least from an assembly position to a connecting position. Other tower, tower segment, support structure, support structural segment, and methods of erection of same use at least a tower segment of a tower.
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公开(公告)号：US20210186001A1
公开(公告)日：2021-06-24
申请号：US16946299
申请日：2020-06-15
申请人： ARDISAM, INC.
发明人： Bryant HAAKENSON , Michael FURSETH , Scott NICKELL , Blake OTTO
摘要： A tree stand includes an activity rail assembly rotatably attached to a chair. The activity rail assembly is rotatable among a first stowed position in which the activity rail assembly is oriented upright, a second stowed position in which the activity rail assembly is oriented downwardly, and one or more deployed positions between the first stowed position and the second stowed position. The activity rail assembly is extendable and retractable between a first position and a second position, wherein when the activity rail assembly is in the first position, a horizontal activity rail portion is closer to the chair than when the activity rail assembly is in the second position. The tree stand may further include a platform to support the chair, and, optionally, a ladder portion to support the platform.
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公开(公告)号：US10648236B2
公开(公告)日：2020-05-12
申请号：US14895752
申请日：2014-06-05
申请人： OD Tech Pty Limited
发明人： Peter O'Donnell , Ian Johnson , George Rezk
摘要： A ladder safety mechanism comprises at least one damp, preferably a pair of spaced apart damps, attachable part way along a ladder, to secure the ladder to part of a structure. In some embodiments, the mechanism includes at least one manually operated actuator, such as a rope or cable, coupled to the at least one clamp to enable a user located at the bottom of the ladder to open the at least one clamp to receive the part of a structure. In some embodiments, the at least one clamp is automatically secured to the part of the structure by placing the clamp onto the structure. The at least one manually operated actuator also enables a user located at the bottom of the ladder to open the at least one damp to release the part of the structure. The at least one clamp is oriented substantially perpendicularly to a part of the structure to which the ladder is to be attached.
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公开(公告)号：US20200003008A1
公开(公告)日：2020-01-02
申请号：US16490667
申请日：2018-03-06
发明人： Theo Heitkamp , Bernd Schmeinck
摘要： The invention relates to a ladder system for trench shoring, comprising a lower ladder (14) which extends from the bottom of a trench over a lower subportion (T1) of the height of the trench, and an upper ladder (16) which extends over an upper subportion (T2) of the height of the trench up to a trench edge, wherein the upper ladder (16) is a suspension ladder for suspending onto a shoring panel (12). A ladder system according to the invention is intended to increase the safety of the workers particularly for deep trenches. In a ladder system according to the invention, a platform (22) is arranged at the lower end of the upper ladder (16) is, and that the lower ladder (14) is a stepladder or leaning ladder which stands on the bottom of the trench.
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