公开(公告)号：US11905759B2

公开(公告)日：2024-02-20

申请号：US16813603

申请日：2020-03-09

Applicant: INWESCO INCORPORATED

Inventor： David L. Morris

IPC: E06C1/34 ,  E06C7/50 ,  E06C7/08 ,  E04H12/02

CPC classification number: E06C1/34 ,  E06C7/50 ,  E04H12/02 ,  E06C7/081

Abstract: 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.

公开(公告)号：US11788352B2

公开(公告)日：2023-10-17

申请号：US17961834

申请日：2022-10-07

Applicant: LITTLE GIANT LADDER SYSTEMS, LLC

Inventor： Wesley V. Clark ,  N. Ryan Moss

IPC: E06C1/32 ,  E06C1/12 ,  E06C1/18 ,  E06C7/06 ,  E06C7/18 ,  E06C7/48 ,  E06C7/46 ,  E06C7/08 ,  E06C7/50 ,  E06C1/397 ,  E06C7/00

CPC classification number: E06C1/32 ,  E06C1/12 ,  E06C1/18 ,  E06C7/06 ,  E06C7/081 ,  E06C7/182 ,  E06C7/46 ,  E06C7/48 ,  E06C1/397 ,  E06C7/006 ,  E06C7/50

Abstract: A ladder and ladder accessory are provided including an accessory that may be coupled to the ladder in multiple configurations and serve multiple purposes. In one embodiment, a pair of components are each selectively coupled with associated rails of a ladder in a first, stored state, and a second, walkthrough state. When in the walkthrough state, the components extend upwards from and above the rails so that a user may gasp the components and step between the components when transitioning from the ladder to an elevated surface (e.g., a roof) or vice versa. In another embodiment, the components may be coupled to the ladder such that they extend in a direction that is substantially transverse to a plane through which the rails extend. When in this transverse orientation, the components may be used as a stand-off device.

公开(公告)号：US20190195016A1

公开(公告)日：2019-06-27

申请号：US16286813

申请日：2019-02-27

Applicant: BoBo Ladders LLC

Inventor： Larry Brian Champ ,  Wayne Lawrence Soucie ,  Jeffrey Earl Tayon ,  Michael Herbert Schmidt

IPC: E06C1/36 ,  E06C7/18 ,  E06C7/08 ,  E06C5/04 ,  E06C5/02 ,  B60R3/02

CPC classification number: E06C1/36 ,  B60R3/005 ,  B60R3/02 ,  E06C5/02 ,  E06C5/04 ,  E06C7/08 ,  E06C7/081 ,  E06C7/083 ,  E06C7/182 ,  E06C9/02

Abstract: A boat or recreational vehicle ladder apparatus is provided. One aspect of the present ladder apparatus includes an elongated extension handle including a slot adjacent a lower end thereof. Another aspect of a boat or recreational vehicle ladder apparatus provides a snap-on step tread which can be mounted to a dual-tubular ladder step structure. Another aspect of a boat or recreational vehicle ladder apparatus employs a laterally expandable ladder step which can be retrofit onto an existing ladder. A further aspect employs clasps or hooks to attach and retain a ladder step to generally vertical ladder rails in a tool-free and fastener-free manner.

公开(公告)号：US08202018B2

公开(公告)日：2012-06-19

申请号：US12193828

申请日：2008-08-19

Applicant: Daid J. Lipniarski

Inventor： Daid J. Lipniarski

IPC: F16G11/10

CPC classification number: E04H4/144 ,  B29C49/00 ,  B29L2031/7278 ,  B29L2031/745 ,  E06C1/39 ,  E06C7/006 ,  E06C7/081 ,  E06C7/084 ,  E06C7/182 ,  Y10T403/7015

Abstract: A blow-molded plastic female interconnection system has a receiving section and a locking section. The receiving section receives a male interconnect. The receiving section has a floor aperture shaped to allow the corresponding male interconnect be pushed into the locking section. The floor aperture can have various shapes depending on the shape of the male interconnect. Within the receiving section is a locking projection on the receiving section's back wall and the locking projection has a bottom section that defines a portion of the ceiling of the locking section which has no back wall. When the male interconnect is being pushed into the locking section, the locking projection deforms due to the locking sections no back wall. When the male interconnect is below the locking projection, the locking projection bottom section is positioned on the male interconnect to securely interconnect the male and female units.

Abstract translation: 吹塑塑料母连接系统具有接收部分和锁定部分。 接收部分接收公互连。 接收部分具有成形为允许相应的公互连被推入锁定部分的底板孔。 根据阳互连的形状，地板孔可以具有各种形状。 在接收部分内是接收部分后壁上的锁定突起，并且锁定突起具有底部，该底部部分限定了没有后壁的锁定部分的天花板的一部分。 当阳性互连被推入锁定部分时，由于锁定部分没有后壁，锁定突起变形。 当阳互连在锁定突起下方时​​，锁定突起底部部分位于阳互连上以牢固地互连阳和阴单元。

公开(公告)号：US20090000867A1

公开(公告)日：2009-01-01

申请号：US11819348

申请日：2007-06-27

Applicant: Chen Lu Wang

Inventor： Chen Lu Wang

IPC: E06C1/02

CPC classification number: E06C1/39 ,  E06C7/08 ,  E06C7/081

Abstract: A ladder made by plastic material includes a first ladder unit which includes two side rails with a plurality of rungs integrally connected between the two side rails. A head step is integrally connected to two respective top ends of the two side rails. The first ladder unit includes an open first side and a closed second side. Each of the rungs includes a latitude rib and altitude ribs connected to an inner periphery of the open first side so as to define a plurality of chambers in the open first side of each rung, and each side rail includes two sidewalls and a plurality of latitude ribs connected between the two sidewalls so as to define chambers separated by the latitude ribs. Each rung has an anti-slip top surface. A second ladder unit can be pivotably connected to the first ladder unit at two respective head steps.

Abstract translation: 由塑料材料制成的梯子包括第一梯形单元，该梯形单元包括两个侧轨，多个梯级一体地连接在两个侧轨之间。 头部台阶一体地连接到两个侧轨的两个相应的顶端。 第一梯形单元包括打开的第一侧和闭合的第二侧。 每个梯级包括与开放的第一侧的内周边连接的纬度肋和高度肋，以便在每个梯级的敞开的第一侧中限定多个室，并且每个侧轨包括两个侧壁和多个纬度 肋连接在两个侧壁之间，以便限定由纬度肋分隔的室。 每个梯级都有防滑顶面。 第二梯形单元可以在两个相应的头部步骤可枢转地连接到第一梯形单元。

公开(公告)号：US07370725B1

公开(公告)日：2008-05-13

申请号：US11028138

申请日：2005-01-03

Applicant: Gary R Dornfeld

Inventor： Gary R Dornfeld

IPC: E06C7/12

CPC classification number: E06C7/12 ,  E06C7/081 ,  E06C7/084

Abstract: A device supported by a ground surface and a structure for at least one of elevating and descending a user. The device includes a first guide rail having a first channel extending along a length thereof and a second guide rail having a second channel extending along the length thereof. At least one connector connects the first guide rail with the second guide rail at a predetermined location along a length thereof so that said first channel and said second channel face inwards towards each other. A platform for supporting the user having a predetermined amount of weight is connected within each of the first and second channels and between the first guide rail and second guide rail. The device further includes means for moving the platform along the length of each of the first channel and the second channel. Upon the moving means being engaged by a user, the platform is moved distally towards at least one of a first end of the guide rails and a second end of the guide rails opposite the first end thereby moving the user therealong.

Abstract translation: 由地面支撑的装置和用于升降用户中的至少一个的结构。 该装置包括具有沿其长度延伸的第一通道的第一导轨和具有沿其长度延伸的第二通道的第二导轨。 至少一个连接器将第一导轨与第二导轨沿着其长度在预定位置处连接，使得所述第一通道和所述第二通道朝向彼此面向内。 用于支撑具有预定重量的用户的平台连接在每个第一和第二通道内以及第一导轨和第二导轨之间。 该装置还包括用于沿着第一通道和第二通道中的每一个的长度移动平台的装置。 当移动装置被使用者接合时，平台朝着导轨的第一端中的至少一个向远侧移动，并且导轨的第二端与第一端相对，从而使用户在其上移动。

公开(公告)号：US20080078615A1

公开(公告)日：2008-04-03

申请号：US11537909

申请日：2006-10-02

Applicant: Sidney B. Fowlds

Inventor： Sidney B. Fowlds

IPC: E06C1/00

CPC classification number: E06C1/18 ,  E06C7/08 ,  E06C7/081 ,  E06C7/14

Abstract: A walking ladder which has a pair of ladder sections each section having a pair of spaced apart elongated members and a series of steps spaced apart and extending across the space between the elongated members. A pair of hinges are provided with each hinge pivotally coupling corresponding ends of the elongated members so that said sections have an A-shape when in an operating position. The hinges are confined to a width bounded by sides of the elongated members. A user straddles the walking ladder and removes his/her weight from one step and transfers it to another enabling the user to move one section of the ladder relative to the other and hence walk.

Abstract translation: 具有一对梯子部分的步行梯子，每个部分具有一对间隔开的细长构件和间隔开并延伸穿过细长构件之间的空间的一系列台阶。 一对铰链设置有每个铰链枢转地联接细长构件的相应端部，使得当处于操作位置时所述部分具有A形形状。 铰链被限制在由细长构件的侧面限定的宽度上。 用户跨越步梯，从一步中移除他/她的重量，并将其转移到另一个位置，使用户能够相对于另一个梯子移动梯级的一部分，从而行走。

公开(公告)号：US20070283637A1

公开(公告)日：2007-12-13

申请号：US11449351

申请日：2006-06-08

Applicant: William G. O'Connor ,  Matthew F. O'Connor

Inventor： William G. O'Connor ,  Matthew F. O'Connor

IPC: E04F11/00

CPC classification number: E06C9/04 ,  E06C7/081

Abstract: The present invention is directed to apparatus and methods that facilitate access to space defined at least in part by a generally vertical surface. The apparatus of the present invention includes a tread and legs, each end of each leg may be efficiently inserted into appropriately sized and shaped receiving apertures within the generally vertical. The apparatus includes safety stops that assist a person to safely step onto the tread and a face of the tread on which information may be carried.

Abstract translation: 本发明涉及便于进入至少部分地由大致垂直的表面限定的空间的装置和方法。 本发明的装置包括胎面和腿部，每个腿部的每个端部可以有效地插入在大致垂直的适当尺寸和形状的接收孔内。 该装置包括安全止动件，其可帮助人安全地踏上胎面和可在其上承载信息的胎面的面部。

公开(公告)号：US07086499B2

公开(公告)日：2006-08-08

申请号：US11073321

申请日：2005-03-04

Applicant: Newell Ryan Moss

Inventor： Newell Ryan Moss

IPC: E06C1/00 ,  E06C7/00

CPC classification number: E06C7/081 ,  E06C1/32 ,  E06C7/084 ,  E06C7/085

Abstract: A method for manufacturing a rail for a ladder. The method may include pultruding in a longitudinal direction, a rail having a selected cross-sectional shape. The rail may then be cut to a predetermined length at a distal end. A force may be applied, in a lateral direction, to the rail to form a curvature therein. The curvature may be characterized by a flared portion, a straight portion, and a curved region providing the transition therebetween. The rail may be held at the desired curvature for a time selected for the rail to take on the curvature substantially permanently. The force may then be removed and the rail may be assembled into a ladder.

公开(公告)号：US20050178615A1

公开(公告)日：2005-08-18

申请号：US10777613

申请日：2004-02-12

Applicant: Ronald Woller ,  Scott Echols

Inventor： Ronald Woller ,  Scott Echols

IPC: E06C1/34 ,  E06C7/08 ,  E06C7/16

CPC classification number: E06C7/081 ,  E06C1/34 ,  E06C7/08

Abstract: A hunting ladder for attachment to a tree or pole includes a plurality of ladder sections that can be assembled together to form a rigid structure, including side rails and rungs extending between the side rails. In an exemplary embodiment, the side rails comprise elongate structural beams. External bolsters, shaped to match and closely abut the structural beams and adapted to be mounted to the outside of adjacent ladder sections, couple the ladder sections together. Fasteners extendable through the side bolsters and the structural beams allow adjacent ladder sections to be coupled together and uncoupled, as desired. In an exemplary embodiment, a seat is attached to an upper portion of the ladder without requiring attachment of the seat to the tree or pole.

Abstract translation: 用于连接到树或杆的狩猎梯子包括可以组装在一起以形成刚性结构的多个梯形部分，其包括在侧轨之间延伸的侧轨和梯级。 在示例性实施例中，侧轨包括细长结构梁。 外部支柱，成形为匹配并紧密地邻接结构梁并且适于安装到相邻梯形部分的外侧，将梯形部分连接在一起。 紧固件通过侧枕可延伸，并且结构梁允许相邻的梯形部分根据需要联接在一起并且分离。 在示例性实施例中，座椅附接到梯子的上部，而不需要将座椅附接到树或杆。