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公开(公告)号：US12123259B2
公开(公告)日：2024-10-22
申请号：US17092276
申请日：2020-11-08
申请人： Mark Edward Vogt
发明人： Mark Edward Vogt
摘要： Herein disclosed is a platform apparatus which attaches to the top of a conventional ladder or extension ladder, and a wheeled apparatus which attaches to said ladder, thus forming a single composite apparatus. Said composite apparatus can then operate as a cart for transporting itself, equipment and other loads to and from usage locations, and said composite apparatus can operate as an elevated platform when attached to a tree or similar elevated surface.
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公开(公告)号：US11846137B2
公开(公告)日：2023-12-19
申请号：US16697550
申请日：2019-11-27
发明人： N. Ryan Moss , Sean Peterson , Brian Russell
IPC分类号： E06C7/16 , E06C1/39 , E06C1/397 , E06C7/14 , E06C7/18 , E06C7/46 , E06C1/22 , E06C7/42 , E06C7/50
CPC分类号： E06C7/16 , E06C1/22 , E06C1/39 , E06C1/397 , E06C7/14 , E06C7/182 , E06C7/42 , E06C7/46 , E06C7/50 , Y10T29/49826
摘要： Ladders, ladder components and related methods are provided including various embodiments of a combination ladder. In some embodiments, a platform is provided that is fixedly coupled with a rail assembly of a combination ladder. The platform may pivot between a useable position or state and a stowed or stored position or state. The platform may maintain a position relative to certain rungs of the rail assembly while being displaceable relative to other rungs of the rail assembly. A hand rail may be coupled to the rail assembly and a tray may be coupled with the hand rail. The tray and the platform may be configured to maintain a constant distance between one another while the rail assembly is adjusted for height.
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公开(公告)号：US11839298B2
公开(公告)日：2023-12-12
申请号：US18049475
申请日：2022-10-25
摘要： A movable storage assembly includes a pair of upright frame pieces joined together by a lateral rail. The rail's opposite ends each include a T-shaped upper tab having upward and downward extending portions, and a lower tab with downwardly extending portion. The upper and lower tabs are simultaneously insertable into upper and lower openings along the uprights, and then lowerable so that the downward portions of the upper and lower tabs secure the rail to the uprights. Upward movement of the rail causes the upward portions of the upper tabs of engage the uprights above the upper openings, preventing removal of the upper tabs from the uprights. Optionally, part of a platform is supportable at the rail and cooperates with the upper tabs to prevent removal of the lateral rail from the uprights, even if the downwardly extending portions of the tabs are disengaged from the uprights.
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公开(公告)号：US11208844B2
公开(公告)日：2021-12-28
申请号：US16501484
申请日：2019-08-08
申请人： Mark D. Ross
发明人： Mark D. Ross
IPC分类号： E06C1/397
摘要： A mountable roller device for ladders. It is capable of integrating and attaching to step ladders, extension ladders, or most other standard ladders. The mountable roller device has a pair of side latches for connecting to the legs of the ladder, and also includes a plug for inserting into the void within the ladder steps of a typical ladder. Once affixed to the ladder, the ladder can be tipped and rolled along the roller wheel of the device. The roller wheel includes a groove to allow the device to be used as a pulley system with the ladder.
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公开(公告)号：US10815728B2
公开(公告)日：2020-10-27
申请号：US16198437
申请日：2018-11-21
发明人： Brian Russell , N. Ryan Moss
摘要： Elevated work platform apparatuses, as well as associated methods, are provided. In one particular embodiment, an elevated platform apparatus is provided comprising a first assembly having a pair of rails coupled with a plurality of rungs, a second assembly hingedly coupled with the first assembly, a platform pivotally coupled with the first assembly and configured to extend to, and engage a portion of, the second assembly. The apparatus further includes a cage associated with the platform. The cage may include at least one bar and at least one gate, the at least one gate being configured to swing in a first direction upon a user stepping on to the platform from the first rail assembly, and then swing back to a closed position after the user is standing on the platform. platform includes a toe-kick structure that is collapsible relative to the deck of the platform.
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公开(公告)号：US10745968B2
公开(公告)日：2020-08-18
申请号：US16132181
申请日：2018-09-14
发明人： N. Ryan Moss , Aaron B. Major
IPC分类号： E06C1/397 , E06C7/16 , E06C7/18 , E06C1/393 , E06C1/18 , E04G1/24 , E06C1/39 , B60B33/06 , B60B33/00 , E06C7/42
摘要： A caster assembly for use with varies structures, including ladders and elevated platforms is provided. In one embodiment, the caster assembly includes a first wheel coupled with a first bracket and configured to rotate about a first axis relative to the first bracket. A shaft is coupled to the first bracket as well as to a second bracket. The first bracket is rotatable relative to the second bracket about a second axis, which may be coincident with, or parallel to, an axis of the shaft. A third bracket is coupled with the shaft and is rotatable about the second axis, the third bracket being selectively locked in at least two positions relative to the second bracket. A second wheel is coupled with the third bracket, the second wheel being rotatable relative to the third bracket about a third axis.
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公开(公告)号：US10337246B1
公开(公告)日：2019-07-02
申请号：US15237776
申请日：2016-08-16
申请人： Thomas F. Wise
发明人： Thomas F. Wise
摘要： First and second forward legs have pivot ends and free ends. First and second rearward legs have pivot ends and free ends. Four pivot brackets are provided. Two of the four pivot brackets extend rearwardly from each forward leg. In this manner the angle between the forward and rearward legs may be varied. Also provided is a top step, a middle step, and a bottom step. Each step is horizontal when in a ladder orientation. Further provided is an imperforate tongue. The imperforate tongue is pivotably secured between the rearward legs adjacent to the free ends. In this manner the rearward legs may be perpendicularly positioned when in a dolly orientation. Provided last are four wheels. Four wheels are secured to the forward legs. The four wheels extend forwardly from the forward legs for use when in a cart orientation.
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公开(公告)号：US20190111827A1
公开(公告)日：2019-04-18
申请号：US16217857
申请日：2018-12-12
摘要： A maintenance/construction cart that facilitates wall and ceiling access while isolating the interior of the cart from the surrounding environment. The cart is configured such that its height can be easily adjusted by an operator to provide access to ceilings of different heights while maintaining the seal between the interior of the cart and the surrounding environment while structurally supporting a ladder leaning against a surface of the cart. In some embodiments, the cart includes an air filtration unit.
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公开(公告)号：US09834987B2
公开(公告)日：2017-12-05
申请号：US15009175
申请日：2016-01-28
发明人： Chung-Chi Lo
摘要： A foldable ladder cart including a main shaft, an upper loading board, a lower loading board, an upper brace, and a lower brace is provided. The upper loading board is connected to the main shaft, and is pivotally movable between a first and a second position. The lower loading board is connected to the main shaft, and is pivotally movable between a third and a fourth positions. The upper brace is connected to the upper loading board and the main shaft; the lower brace is connected to the main shaft and the lower loading board. When the upper and the lower braces are in supporting positions, the upper loading board and the main shaft are in the first and the third positions. When the upper and the lower braces are in folded positions, the upper loading board and the main shaft are in the second and the fourth positions.
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公开(公告)号：US20170167196A1
公开(公告)日：2017-06-15
申请号：US14965155
申请日：2015-12-10
申请人： Robert L. Johnson
发明人： Robert L. Johnson
摘要： A ladder support assembly including a base frame having first and second ends and a pair of pivot supports extending from the base frame which support a rod configured to pivotally support a ladder relative to the base frame. A pivot frame is pivotally mounted to the base frame and is biased away from the base frame. A bracket assembly is pivotally mounted to the pivot frame and includes a pair of bracket plates. Each bracket plate has an inner flange and outer flange with a ladder rail receiving area between the inner and outer flanges. The ladder receiving area is configured such that the bracket plate is slidable relative to a respective ladder rail received therein. A crank assembly includes a spool rotatably supported on the base frame and a cord wound about the spool with a free end of the cord connected relative to the pivot frame.
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