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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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2.发明公开公开(公告)号：US20230374856A1
公开(公告)日：2023-11-23
申请号：US18142069
申请日：2023-05-02
发明人： Niels Harboe
摘要： A ladder for using in the process of manufacturing a rotor blade by leaning the ladder against the rotor blade being manufactured and climbing thereon is provided, including two rails and a plurality of rungs, wherein the rails include a solid structure elastically bendable by the weight of a person climbing thereon in order to align a bending radius of the rails, resulting from an elastic bending of the rails, to an outer radius of the rotor blade being manufactured. A step-portion for the inventive ladder and a system including the inventive ladder is also provided.
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公开(公告)号：US11795760B2
公开(公告)日：2023-10-24
申请号：US17068074
申请日：2020-10-12
摘要： A tripod assembly includes a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion along a longitudinal axis of the plurality of columns between a fully-extended position and a collapsed position. When the columns are collapsed from the fully-extended position each column substantially nests within another one of the columns. The plurality of columns are received within the central post when the plurality of columns is in the collapsed position. The bracket assembly is coupled to the second end of the connecting rod, and the bracket assembly is configured to receive a selectable rung of a ladder therein. The bracket member is coupled to an uppermost one of the columns, and the bracket member includes a channel configured to receive a second selectable rung of the ladder.
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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：US20220316274A1
公开(公告)日：2022-10-06
申请号：US17721895
申请日：2022-04-15
摘要： A folding leg for a stepladder is disclosed. The folding leg allows the width of the stepladder base to be narrowed when in the stored orientation and widened while in an in-use orientation.
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公开(公告)号：US11274494B2
公开(公告)日：2022-03-15
申请号：US15458518
申请日：2017-03-14
发明人： Luhao Leng
摘要： A telescoping ladder includes first and second telescoping ladder racks each having a top portion and including an outer ladder rack having first and second outer legs having interior surfaces that are sliding surfaces; and an inner ladder rack having a first and second inner legs having a sliding surface that slidably engages the sliding surface of the first outer leg along the length thereof, and the second inner leg having a sliding surface that slidably engages the sliding surface of the second outer leg along the length thereof. The top portions are pivotally connected to form a structure that articulates to open and close the ladder. The outer and inner ladder racks are configured as elongated hollow tubes that have a cross section of a closed tube having a protuberance extending therefrom. The outer legs have lateral support legs having protruding ribs to form a stabilizing support structure.
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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：US10961092B2
公开(公告)日：2021-03-30
申请号：US16253947
申请日：2019-01-22
摘要： An modular lift system for hoisting objects along a track to a predetermined height. The lift system may include a limit switch, a carriage with an automatic emergency braking system, and a peak to engage the track, whereby the carriage rolls along the side rails of the track between the peak mounted to the top of the track and the bottom of the track. The carriage can be adjustable thereby permitting it to be adapted to various types and sizes of tracks. The automatic emergency braking system is adapted to prevent the uncontrolled descent of the carriage in the event of a cable or primary brake failure.
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公开(公告)号：US10933523B1
公开(公告)日：2021-03-02
申请号：US16533965
申请日：2019-08-07
申请人： Whiteside Mfg. Co.
摘要： An apparatus which enables a person to comfortable work on the engine of a vehicle includes base, spine, post, knee pad, and chest pad components. The spine component is pivotally connected to the base component. A brace prevents the pivoting movement but is removably connected between the spine and the base to allow pivoting when desired. The spine component carries the tube component at a selected height, and the tube component carries the knee pad component at a selected position. The tube component carries the chest pad component.
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公开(公告)号：US20200024900A1
公开(公告)日：2020-01-23
申请号：US15791371
申请日：2017-10-23
摘要： An adjustable ladder and stair system has a folding stair assembly including a ladder-member having a first-end, a second-end, a plurality of rungs equidistantly spaced between a first-rail and a second-rail, and a securer, a stair-member having a stair-portion, a first-rail-slide-mechanism, a second-rail-slide-mechanism, a first-rail-locking-mechanism, and a second-rail-locking-mechanism. The ladder-member may be secured in a vertical position parallel to a substantially vertical item desired to be ascended via the securer. The stair-member is adjustable to accommodate a desired angle. The folding stair assembly provides an apparatus for safely accessing a substantially vertical item desired to be ascended such as a roll off garbage bins.
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