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公开(公告)号：US12054989B1
公开(公告)日：2024-08-06
申请号：US17317477
申请日：2021-05-11
摘要： A swimming ladder system can include a ladder configured to be mounted to a support surface, and a pivot connected to the ladder for anchoring the ladder to the support surface. The pivot can include at least one detent for arresting movement of the ladder at a lowered or operative orientation, a raised or stowed orientation, an intermediate orientation between the lowered or operative orientation and the raised or stowed orientation, and so forth. In some embodiments, the swimming ladder system includes a ratchet lock with a latch, where the latch can be moved between a first orientation for arresting movement of the ladder in a first direction and a second orientation for arresting movement of the ladder in a second direction.
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公开(公告)号：US11739534B2
公开(公告)日：2023-08-29
申请号：US16878829
申请日：2020-05-20
摘要： A folding staircase for use in a door opening having a threshold. The folding staircase has a pair of stringers that have an upper end and a lower end that is adapted for contacting a ground surface. The stringers are spanned by at least one tread. A hinge is connected to a floor near the door opening and a threshold plate pivotally connected thereto is movable between a use position and a stowed position. The staircase may be provided with a lifting mechanism that biases the staircase and threshold plate toward their stowed positions. The lifting device provides a variable force that provides more rotational force when the staircase would require a user to bear more of its weight and less force when less of the weight of the staircase would be borne by a user.
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公开(公告)号：US11697573B2
公开(公告)日：2023-07-11
申请号：US16951112
申请日：2020-11-18
发明人： Jean-Emile Rocher , Vincent Lopez
CPC分类号： B66B5/0087 , B66B9/00 , B66B13/08 , B66B13/306 , E06C9/085
摘要： A storage system (500) for an elevator hoistway access ladder (300) includes a landing doorway (502) comprising a door column (504) and a landing door (506). The door column (504) includes a rotating support (501) for storing the hoistway access ladder (300), and the rotating support is rotatable relative to the door column (504).
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公开(公告)号：US20220388825A1
公开(公告)日：2022-12-08
申请号：US17887014
申请日：2022-08-12
发明人： Reuben HUDDLESTON , Chad HISLOP , Adam HAILEY , Jim DONALDSON , Dax WELLS , Dave HUBBELL , Max WALLNER , Jonathan SEBASTIAN , Kenneth Higuera LYONS , Trel Lynn DUTTON
摘要： An access deck assembly is provided for an aerial lift vehicle mobile platform. A base member defines an upper surface to support an operator, and has first and second guides to cooperate with the platform. A locking mechanism is supported by the base member and retains the access deck to the platform. A method of connecting an access deck assembly to a mobile platform is provided. The access deck assembly is positioned relative to the platform to be above and spaced apart from the platform floor surface, with the base member of the access deck assembly substantially within a perimeter frame of the platform. An access deck assembly has a guide member connected to a base member and configured to connect the base member to the mobile platform and support the base member directly above and spaced apart from the platform floor surface.
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公开(公告)号：US11440772B2
公开(公告)日：2022-09-13
申请号：US16494769
申请日：2017-03-30
发明人： Hironobu Kamada
摘要： A mechanism that allows a ladder to be moved to either a use position or a retracted position. The ladder can be moved from the retracted position to the use position with a minimal effort, and the ladder moves by itself from the use position to the retracted position. A pit ladder apparatus for an elevator according to the present invention includes a position change means to be provided in a fixing metal frame fixed to the hoistway and allowing a ladder to be moved to either the use position when the ladder is used or the retracted position for retracting the ladder when it is not used so as not to interfere with operation of the elevator.
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公开(公告)号：US20220064958A9
公开(公告)日：2022-03-03
申请号：US16878829
申请日：2020-05-20
摘要： A folding staircase for use in a door opening having a threshold. The folding staircase has a pair of stringers that have an upper end and a lower end that is adapted for contacting a ground surface. The stringers are spanned by at least one tread. A hinge is connected to a floor near the door opening and a threshold plate pivotally connected thereto is movable between a use position and a stowed position. The staircase may be provided with a lifting mechanism that biases the staircase and threshold plate toward their stowed positions. The lifting device provides a variable force that provides more rotational force when the staircase would require a user to bear more of its weight and less force when less of the weight of the staircase would be borne by a user.
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公开(公告)号：US20210261061A1
公开(公告)日：2021-08-26
申请号：US17185076
申请日：2021-02-25
摘要： A stowable stair assembly with step treads connected between stair stringers includes stabilizing legs positioned within a width of the treads and behind the treads. A removable hinge assembly facilitates installation of the stair assembly as well as access to the stair assembly.
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公开(公告)号：US10662708B2
公开(公告)日：2020-05-26
申请号：US16039214
申请日：2018-07-18
申请人： Daniel K. Snarr
发明人： Daniel K. Snarr
摘要： This is a system that allows a small child to escape from a window well using a ladder and a window well cover. The ladder extends from the bottom of the window well cover and has a trigger that when activated slides the ladder and releases a trap door in the window well cover, thus allowing a person to climb the ladder and escape through the cover.
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