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1. 发明公开

US20240279988A1 EXTENSION LADDER, LADDER COMPONENTS AND RELATED METHODS 审中-公开
公开(公告)号：US20240279988A1
公开(公告)日：2024-08-22
申请号：US18649878
申请日：2024-04-29
申请人： LITTLE GIANT LADDER SYSTEMS, LLC
发明人： Jay Ballard , Christian Smith , Gary Jonas , Sean Peterson , Brian Russell
IPC分类号： E06C1/12 , E06C7/06 , E06C7/46
CPC分类号： E06C1/12 , E06C7/06 , E06C7/46
摘要： A ladder is provided having a base section and a fly section slidably coupled with the base section. The base section includes a first pair of spaced apart rails and a first plurality of rungs extending between and coupled to the first pair of spaced apart rails. The fly section includes a second pair of spaced apart rails and a second plurality of rungs extending between and coupled to the second pair of spaced apart rails. The various rungs may be coupled with their associated rails in an offset relationship such that they are not centered along a longitudinal center axis line of the rails. A rung lock device may be used which includes an arm pivotally coupled with the base section and configured to selectively engage various rungs of the second plurality of rungs to maintain the fly section in a desired position relative to the base section.

2. 发明授权

US12065881B1 Extension ladder weight distribution stand 有权
公开(公告)号：US12065881B1
公开(公告)日：2024-08-20
申请号：US18445903
申请日：2024-03-13
申请人： Calvin Coolridge Barrett
发明人： Calvin Coolridge Barrett
IPC分类号： E06C7/48 , E06C1/04 , E06C1/12 , E06C1/32 , E06C7/14
CPC分类号： E06C7/48 , E06C1/04 , E06C1/12 , E06C1/32 , E06C7/14
摘要： A mechanical extension ladder support stand that a worker can mount on an extension ladder. Perform work or repairs on interior walls or stairways safely. The device is installed and removed from the ladder, disassembled or repaired without need of tools, safely. The ladder stand is expandable to fit extension ladders of different widths and lengths, without use of tools. When set up to work on a wall, the ladder stand's support board will automatically pivots to match the angle at top of ladder to the wall's surface, without any tools or adjustment. The ladder stand will always rest a padded support board, safety on two or more of the walls vertically framing members. Without damaging or marring the walls. The ladder stand operates safely for the layman on the interior walls without need of any tools, only human hands.

3. 发明授权

US12054984B2 Escape door assembly for storm shelter 有权
公开(公告)号：US12054984B2
公开(公告)日：2024-08-06
申请号：US17338013
申请日：2021-06-03
申请人： Brian K. Gates
发明人： Brian K. Gates
IPC分类号： E06B5/01 , E04F11/06 , E04H9/14 , E06B5/12 , E06C9/08
CPC分类号： E06B5/12 , E04F11/064 , E04H9/14 , E06B5/01 , E06C9/08
摘要： A storm shelter escape door assembly includes a frame and a door hinged to the frame. The frame includes three inner sidewalls, an open end, and a horizontal attachment plate extending outwardly from upper edges of the inner sidewalls. The door has at least three outer sidewalls joined by a door face. The door is hinged to the frame adjacent the open end and below the horizontal attachment plate so the door is openable in an inward direction away from the horizontal attachment plate. When the door is in a closed position, the door face angles downwardly toward the open end to cause water to run off the door.

4. 发明授权

US12054907B2 Variable sliding manhole safety guard 有权
公开(公告)号：US12054907B2
公开(公告)日：2024-08-06
申请号：US18166632
申请日：2023-02-09
申请人： ESSYSTEM Co., Ltd
发明人： Tae Hyun Jang
IPC分类号： E06C7/18 , E02D29/12
CPC分类号： E02D29/122 , E06C7/182 , E06C7/185
摘要： Disclosed is a variable sliding manhole safety guard including an installation support part that is installed on an inner wall of a manhole to be installed and has a rail structure vertically extending by a predetermined length and configured to change a vertical position of a movement guide, the movement guide that is mounted on the rail structure to change a vertical position, has a structure vertically extending by a predetermined height, and is mounted on a safety fence in an integrated structure, the safety fence which is mounted on the movement guide in an integrated structure and includes a plurality of frames forming a cylindrical structure having an outer diameter corresponding to an inner diameter of a manhole entrance, and in which an openable entrance door is installed in an upper one surface thereof.

5. 发明授权

US12037849B2 Ladder safety handrail 有权
公开(公告)号：US12037849B2
公开(公告)日：2024-07-16
申请号：US17177175
申请日：2021-02-16
申请人： Steve Mackey
发明人： Steve Mackey
IPC分类号： E06C7/18 , E06C1/12
CPC分类号： E06C7/183 , E06C1/125
摘要： A set of detachable base ladder safety handrails comprising: a pair of tubular cross-section handrails, wherein said handrails are made of metal, preferably aluminum, wherein one handrail is situated approximately one to a few inches away from the distal edge of one of the two ladder side rails, wherein a second handrail is situated approximately one to a few inches away from the distal edge of the second ladder side rail, wherein said pair of handrails are on or substantially on the same plane which ladder side rails and rungs connecting said ladder side rails lie, wherein said pair of handrails are parallel to each other and said ladder side rails, wherein a plurality of removable clamps is attached to each of said ladder side rails, wherein each of the said handrails is coupled to said plurality of removable clamps by a plurality of clamp-to-handrail links, wherein each clamp-to-handrail link is securely bonded, welded, or fastened to said clamp on one end and nearest handrail on said link's opposite end, wherein said clamp-to-handrail links are made of a solid circular, tubular, or thin shell cross-section and are preferably made from aluminum, wherein at least two clamps are attached to each ladder side rail and at least one clamp is attached near each of the two ends of said ladder side rail, wherein the surface of said handrails have a durable and high grip topology, preferably knurled.

6. 发明授权

US12024949B2 Vehicle ladder attachment mechanism 有权
公开(公告)号：US12024949B2
公开(公告)日：2024-07-02
申请号：US16984973
申请日：2020-08-04
申请人： INTELLIGENT DESIGNS 2000 CORP.
发明人： Paul Badillo
IPC分类号： E06C5/24 , B60R3/00 , B62D65/16
CPC分类号： E06C5/24 , B60R3/005 , B62D65/16
摘要： A system is provided for interconnecting a ladder to a vehicle. The system may include a first portion for interconnecting to an upper portion of a vehicle rear door and a second portion for interconnecting to a lower portion of the vehicle rear door. The system provides a ladder interconnection wherein no penetrations are made into the vehicle.

7. 发明公开

US20240183222A1 REINFORCED SPREADER LADDER STEP AND LADDER HANDLE, LADDERS INCORPORATING SAME, AND RELATED METHODS 审中-公开
公开(公告)号：US20240183222A1
公开(公告)日：2024-06-06
申请号：US18527208
申请日：2023-12-01
申请人： LITTLE GIANT LADDER SYSTEMS, LLC
发明人： Travis Mittanck , N. Ryan Moss , Tallon C. Beckstrom , B. Scott Maxfield
IPC分类号： E06C7/50 , E06C1/20 , E06C7/16
CPC分类号： E06C7/50 , E06C1/20 , E06C7/16
摘要： Ladder configurations and components are provided including a first assembly of rails and a second assembly of rails that are pivotable relative to each other between a collapsed configuration and an expanded configuration. A handle coupled to a rail extends inward from the rail and has an inner end resiliently deflectable between a clearance position and a weight bearing position that engages another rail as the ladder is carried by the handle. A spreader mechanism includes a platform extending between jointed linkages and that extends the top surface of a rung coupled to two of the rails. An inner end of the platform may be used as a handle to expand or collapse the ladder. The platform may be extruded and assembled with the rung in a manner limiting pinching or gaps at an interface between the platform and the rung.

8. 发明授权

US12000210B2 Extension ladder, ladder components and related methods 有权
公开(公告)号：US12000210B2
公开(公告)日：2024-06-04
申请号：US16990067
申请日：2020-08-11
申请人： LITTLE GIANT LADDER SYSTEMS, LLC
发明人： Jay Ballard , Christian Smith , Gary Jonas , Sean Peterson , Brian Russell
IPC分类号： E06C1/12 , E06C7/06 , E06C7/46
CPC分类号： E06C1/12 , E06C7/06 , E06C7/46
摘要： A ladder is provided having a base section and a fly section slidably coupled with the base section. The base section includes a first pair of spaced apart rails and a first plurality of rungs extending between and coupled to the first pair of spaced apart rails. The fly section includes a second pair of spaced apart rails and a second plurality of rungs extending between and coupled to the second pair of spaced apart rails. The various rungs may be coupled with their associated rails in an offset relationship such that they are not centered along a longitudinal center axis line of the rails. A rung lock device may be used which includes an arm pivotally coupled with the base section and configured to selectively engage various rungs of the second plurality of rungs to maintain the fly section in a desired position relative to the base section.

9. 发明公开

US20240151108A1 LADDER STORAGE DEVICES 审中-公开
公开(公告)号：US20240151108A1
公开(公告)日：2024-05-09
申请号：US18500954
申请日：2023-11-02
申请人： Tricam Industries, Inc.
发明人： Benjamin M. Wernberg , Jackson T. Wilkey , Joseph P. Foley , Ryan P. Ellsworth , Benjamin P. Williams
IPC分类号： E06C7/14 , E06C1/22
CPC分类号： E06C7/14 , E06C1/22
摘要： Various devices and methods for hanging tools or other items from a ladder are disclosed. The devices may be incorporated into parts of the ladder itself or be separate add-on devices for use with assorted ladders. The devices include a hinge button hook, a hinge button, a foot hook, and a rail hook.

10. 发明公开

US20240151106A1 SUPPORTING FRAME AND STEPLADDER USING SUPPORTING FRAME 审中-公开
公开(公告)号：US20240151106A1
公开(公告)日：2024-05-09
申请号：US18140558
申请日：2023-04-27
申请人： New-Tec Integration (Xiamen) Co., Ltd.
发明人： Luhao LENG
IPC分类号： E06C1/393 , E06C1/20
CPC分类号： E06C1/393 , E06C1/20 , E06C1/387
摘要： A supporting frame and a stepladder using the supporting frame are provided. The supporting frame comprises two supporting legs symmetrically parallelly arranged in a left-and-right direction and two lateral rods symmetrically parallelly arranged in an up-and-down direction. The two lateral rods are connected to and extend between the two supporting legs, and an outer surface of each of the two supporting legs comprises a groove. An end portion of each of the two lateral rods is disposed with a sleeve sleeved on a corresponding one of the two supporting legs, and a part of the sleeve corresponding to the groove is configured to be pressed to move into the groove so as to enable the sleeve to embrace the corresponding one of the two supporting legs to achieve an interference fit connection.

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