With Hook Or Grab Patents (Class 182/206)
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Patent number: 12227992Abstract: A configurable step assistant is provided that includes a first portion configured to be attached to a structure, a second portion pivotally connected to the first portion, the second portion being moveable between a first position and a second position with respect to the first portion, a third portion pivotally connected to the second portion, the third portion being moveable between a first position and a second position with respect to the second portion, wherein, when the second portion is in the second position and the third portion is in the second position, the second portion defines a step for accommodating a user. An associated method is also provided.Type: GrantFiled: August 12, 2020Date of Patent: February 18, 2025Assignee: AHA! SOLUTIONS, INC.Inventor: Sara Hasan
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Patent number: 11963914Abstract: Devices described in this disclosure can be used to assist persons with limited mobility to transfer themselves from a wheelchair to another apparatus, and back again. For example, this document describes devices that persons with limited use of their legs can use to transfer themselves between a wheelchair and another apparatus, such as a handcycle, that has a seat at a lower elevation than the seat of the wheelchair.Type: GrantFiled: October 4, 2021Date of Patent: April 23, 2024Inventor: Kevin Jon Carr
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Patent number: 11753869Abstract: A self-contained knotless security device and method for adjustably securing rope-style pilot ladders and debarkation ladders from any rung to ship deck lashing points, the device not relying on additional mechanical fittings or knot-tying skills. The device comprising a section of multi-strand polyester rope comprising an integrated polyolefin core and having a ship end and a ladder end, the ship end comprising a rugged, wear and corrosion-resistant thimble eye or shackle and the ladder end comprising a flexible long soft eye on the other end. The method comprising encircling ladder suspension members with the device and securing the device to the ship deck lashing point. Alternate polyolefin core construction provides tailored performance characteristics.Type: GrantFiled: April 11, 2020Date of Patent: September 12, 2023Inventor: Robert M Salvarezza
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Patent number: 11719042Abstract: A fall arrest device can include a fall arrest base including a torsion biasing element defining an axis; and a fall arrest arm rotatably secured to the torsion biasing element of the fall arrest base, the fall arrest arm biased towards an unloaded position of the fall arrest arm by the torsion biasing element and configured to rotate about the axis of the torsion biasing element and against the bias of the torsion biasing element when the fall arrest arm is loaded towards a loaded position.Type: GrantFiled: February 15, 2022Date of Patent: August 8, 2023Inventor: Charles J. MacKarvich
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Patent number: 11697965Abstract: A ladder safety mechanism comprises at least one clamp, preferably a pair of spaced apart clamps, attachable part way along a ladder, to secure the ladder to part of a structure. In some embodiments, the mechanism includes at least one manually operated actuator, such as a rope or cable, coupled to the at least one clamp to enable a user located at the bottom of the ladder to open the at least one clamp to receive the part of a structure. In some embodiments, the at least one clamp is automatically secured to the part of the structure by placing the clamp onto the structure. The at least one manually operated actuator also enables a user located at the bottom of the ladder to open the at least one clamp to release the part of the structure. The at least one clamp is oriented substantially perpendicularly to a part of the structure to which the ladder is to be attached.Type: GrantFiled: March 27, 2020Date of Patent: July 11, 2023Assignee: OD TECH PTY LTDInventors: Peter O'Donnell, Ian Johnson, George Rezk
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Patent number: 11284614Abstract: An apparatus, system, and method of attaching a tree stand or other structure along a tree trunk. The apparatus includes a plurality of independently operable features that can be used together or by-themselves with a backbone-type base. The base can support a seat, foot rest, combination of the same, or other structures. One of the independently operable features is a cross member or beam that rotates at the backbone. This can adjust to a tree trunk that diverges to one side or the other from vertical and from the backbone. Another feature is a second cross member that nest in or pivot at one end out of the primary cross beam. This can adjust to a tree trunk that diverges away from the backbone. Another feature is a combination V- or C-shaped cleats or claws and spaced apart around separate vertical pivot axes, with concave sides towards the trunk, at the cross-beam or beams. One cleat is wider and fixed.Type: GrantFiled: January 29, 2019Date of Patent: March 29, 2022Inventor: Aaron Hauser
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Patent number: 11261664Abstract: A system includes a clamp that includes a first arm, a second arm, and a threaded rod coupled to the first arm and the second arm. The threaded rod is configured to be substantially vertical when the clamp is clamped to the static structure. The clamp is configured to, while the user on a ground surface and in response to the nut being rotated about the threaded rod, a first jaw is urged towards a second jaw such that the static structure is clamped between the first jaw and the second jaw. The system further includes a first bracket configured to be releasably affixed to an upper portion of a first side rail of a base station of an extension ladder, and a second bracket that is configured to be releasably affixed to a lower portion of the first side rail of the base station of the extension ladder.Type: GrantFiled: June 2, 2021Date of Patent: March 1, 2022Inventors: Ron Harris, Brad Bodenman
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Patent number: 11180956Abstract: A ladder docking device including a ladder securement device and a pair of handrails is provided. The ladder securement device secures a ladder in an assigned location so that using the ladder while carrying tools and equipment up the ladder becomes safer and more secure. Specifically, the ladder securement device captures one of the ladder rungs to help avoid the ladder bottom from slipping on unstable or slippery surfaces and from sliding off sideways. Handrails of the ladder docking device provide a safe transition when stepping off the ladder or stepping down from the roof.Type: GrantFiled: February 6, 2007Date of Patent: November 23, 2021Inventor: Robert G Gaines
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Patent number: 11041341Abstract: A system includes a clamp that includes a first arm, a second arm, and a threaded rod coupled to the first arm and the second arm. The threaded rod is configured to be substantially vertical when the clamp is clamped to the static structure. The clamp is configured to, while the user on a ground surface and in response to the nut being rotated about the threaded rod, a first jaw is urged towards a second jaw such that the static structure is clamped between the first jaw and the second jaw. The system further includes a first bracket configured to be releasably affixed to an upper portion of a first side rail of a base station of an extension ladder, and a second bracket that is configured to be releasably affixed to a lower portion of the first side rail of the base station of the extension ladder.Type: GrantFiled: May 13, 2020Date of Patent: June 22, 2021Inventors: Ron Harris, Brad Bodenman
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Patent number: 10995549Abstract: A device for stabilising a ladder against a surface, the ladder having a pair of stiles and a plurality of rungs connected therebetween, the device comprising: an engagement mechanism for releasably engaging two adjacent rungs, the engagement mechanism including two opposed receiving portions for at least partially receiving a rung, at least one of the receiving portions being selectively movable relative to the other thereby allowing the engagement mechanism to urge against the adjacent rungs; and at least one arm pivotably connected to the engagement mechanism to allow pivoting thereof to a fixed angle relative to the engagement mechanism, the at least one arm having an abutting portion for abutting under the surface, thereby allowing the ladder to be wedged between the surface and ground level to stabilise the ladder.Type: GrantFiled: January 27, 2017Date of Patent: May 4, 2021Assignee: THE LACKET COMPANY PTY LTDInventors: David Kay, Daniel Seidel
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Patent number: 10987259Abstract: A step system including a patient support member having a deployable step assembly including a deployable step. The deployable step assembly is fixed and integral to the patient support member and is configured to deploy as needed to provide a sturdy platform for at least one medical professional in a standing position while performing medical procedures on a patient. The deployable step assembly may include deployable steps on both a right-side and a left-side of the patient support member.Type: GrantFiled: June 6, 2018Date of Patent: April 27, 2021Inventor: Josephine Lazaro Caetano
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Patent number: 10760338Abstract: A ladder is provided comprising a first pair of spaced apart rails and a plurality of rungs extending between and coupled to the first pair of spaced apart rails. A pair of hooks are located such that each hook is positioned adjacent and upper end of an associated rail. A securing apparatus is coupled adjacent the upper end of the first pair of spaced apart rails. The securing apparatus includes a pair of spaced apart engaging members and may include a cross-member coupled therebetween. Each of the engagement members is pivotal with respect to an associated rail of the first pair of spaced apart rails. In one embodiment, the securing apparatus lacks any biasing members (e.g., springs or actuators) or locking members. The engagement members and hooks cooperatively encircle and overhead, generally horizontal support member to support and secure the ladder in a desired position.Type: GrantFiled: August 2, 2016Date of Patent: September 1, 2020Assignee: WING ENTERPRISES, INCORPORATEDInventors: Brian B. Russell, N. Ryan Moss, Sean R. Peterson, Darius S. Penrod, Ryan Crawford, Gary Jonas
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Patent number: 10584532Abstract: A ladder is provided having a first assembly and a second assembly slidably coupled with the first assembly. The first assembly 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 second assembly 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. A support apparatus is coupled with the first assembly and includes one or more arms that are pivotally displaced from a refracted position to a deployed position responsive to displacement of the first assembly a specified distance relative to the second assembly.Type: GrantFiled: March 18, 2015Date of Patent: March 10, 2020Assignee: WING ENTERPRISES, INCORPORATEDInventors: N. Ryan Moss, Sean R. Peterson, Brian B. Russell, Gary M. Jonas
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Patent number: 10415312Abstract: A ladder securing device provides a means to safely secure a ladder to an edge of a building structure while performing such activities as painting, construction, roofing projects, and the like. The device includes a ladder hooking portion, a turnbuckle, and a clamping assembly. The portions of the device are affixed to each other to form a length-adjustable assembly. It is envisioned that a pair of the devices would typically be utilized to hook onto opposing side rails of the ladder and to adjacent edge features of the building, and then tightened down using the turnbuckles.Type: GrantFiled: May 18, 2018Date of Patent: September 17, 2019Inventor: William F. Conroy
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Patent number: 10316585Abstract: A strand grab includes a frame including a mounting portion and a hook portion having a first end attached to the mounting portion and extending in an arc shape to a second end, a gate member rotatably attached to the mounting portion, a jaw member rotatably attached to the mounting portion, and a connector member coupled between the gate member and the jaw member. The gate member, the jaw member, and the connector member are operatively coupled such that when the gate member rotates toward the first end of the hook portion, the connector member causes the jaw member to rotate toward the first end of the hook portion.Type: GrantFiled: December 22, 2017Date of Patent: June 11, 2019Assignee: WERNER CO.Inventor: Tom Parker
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Patent number: 10060186Abstract: A ladder stabilizing tool for use with an extension ladder may include a U-shaped brace coupled to a ladder grasping member. A pair pivotable of feet may be attached to the ends of U-shaped brace permitting the stabilizing tool to secure an extension ladder to a roof at any slope between zero and ninety degrees. The grasping member has a pair of tapered supports configured to fit within the apertures formed in the rails of an extension ladder. The stabilizing tool ensures stability of the ladder for the safety of an operator, while further providing clearance from any gutter attached to housing fascia.Type: GrantFiled: October 31, 2016Date of Patent: August 28, 2018Assignee: Piotr CherevkoInventors: Piotr Cherevko, Nikolai Cherevko
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Patent number: 10017990Abstract: A ladder safety device is usable for holding and stabilizing a ladder in a safe and stable manner while being used, by way of securing a ladder relative to continuous horizontal guttering at the edge of a building. The device locks to the gutter by way of locking jaws and is secured to the side rail of a ladder by way of an adjustable locking bar—said locking bar being adjustable in lateral and normal directions. The jaws interact by an over-center relationship with each other. In an alternate embodiment, a trigger and locking mechanism secures the jaws in a closed position while in use.Type: GrantFiled: June 5, 2015Date of Patent: July 10, 2018Inventor: Craig R. Charlton
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Patent number: 9849943Abstract: A boarding/disembarking apparatus is removably attached to a vessel to assist in boarding and disembarking from the vessel. An upper end of the apparatus engages the vessel's gunwale or transom and the lower end of the apparatus defines a step or platform, and a hull plate rests against the hull. In a first embodiment the hull plate is hinged to conform to the angular hull of the vessel. In a second embodiment the hull brace allows adjustment of the position of the apparatus relative to the boat.Type: GrantFiled: October 19, 2016Date of Patent: December 26, 2017Assignee: The Foster Bar, LLCInventor: Michael S. Foster
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Patent number: 9593532Abstract: A ladder mounting and retaining system for use on building parapets utilizes a parapet support member secured to the parapet of a building, a ladder support member for retaining the sides of the lengths of a ladder, and a connecting member in the form of a threaded rod, interconnecting the parapet support member and the ladder support member for maintaining these members at a given distance from each other. The parapet support member is secured in position by locking nuts threaded around the connecting member and the ladder support member is secured over the outboard edge of the parapet by retention members. Ladder supports are adjustable on the ladder support member to accommodate ladders of different widths.Type: GrantFiled: January 20, 2015Date of Patent: March 14, 2017Inventors: Clifford B. Dehoff, John M. Morris
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Patent number: 9551183Abstract: A house clamp assembly having a fixed jaw and a slide bar mounted movable jaw, the fixed jaw opposing the movable jaw. A one-way drive means, by operation of a trigger handle grip, releasably engages the slide bar and advances the movable jaw towards the fixed jaw. The one-way drive means is incapable of moving the slide bar and movable jaw away from the fixed jaw. A return motion of the movable jaw (separating) is accomplished manually when the one-way drive means is disengaged. A braking lever, which is biased to bind the slide bar, prevents reverse motion of the slideable jaw away from the fixed jaw, except when the first lever is disengaged from the slide bar.Type: GrantFiled: March 26, 2015Date of Patent: January 24, 2017Inventor: David Michael Rudd
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Patent number: 9488001Abstract: A ladder stabilizing tool for use with an extension ladder may include a U-shaped brace coupled to a ladder grasping member. A pair pivotable of feet may be attached to the ends of U-shaped brace permitting the stabilizing tool to secure an extension ladder to a roof at any slope between zero and ninety degrees. The grasping member has a pair of tapered supports configured to fit within the apertures formed in the rails of an extension ladder. The stabilizing tool ensures stability of the ladder for the safety of an operator, while further providing clearance from any gutter attached to housing fascia.Type: GrantFiled: May 20, 2015Date of Patent: November 8, 2016Inventors: Piotr Cherevko, Nikolai Cherevko
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Patent number: 9404306Abstract: A ladder is provided comprising a first pair of spaced apart rails and a plurality of rungs extending between and coupled to the first pair of spaced apart rails. A pair of hooks are located such that each hook is positioned adjacent and upper end of an associated rail. A securing apparatus is coupled adjacent the upper end of the first pair of spaced apart rails. The securing apparatus includes a pair of spaced apart engaging members and may include a cross-member coupled therebetween. Each of the engagement members is pivotal with respect to an associated rail of the first pair of spaced apart rails. In one embodiment, the securing apparatus lacks any biasing members (e.g., springs or actuators) or locking members. The engagement members and hooks cooperatively encircle and overhead, generally horizontal support member to support and secure the ladder in a desired position.Type: GrantFiled: October 9, 2013Date of Patent: August 2, 2016Assignee: Wing Enterprises, Inc.Inventors: Brian B. Russell, N. Ryan Moss, Sean R. Peterson, Darius S. Penrod, Ryan Crawford, Gary Jonas
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Patent number: 9326500Abstract: A platform is provided with a ladder to allow the user to easily ascend to the platform. A pair of stabilizing arms and jaws provides lateral stability to the ladder. A climbing stick has a pair of vertical posts attached between the front and rear walls of steps to provide a secure connection. The upper and lower ends extend inwardly and away from each other to provide a gripping surface. A tree stand has a male adapter with a bracket for securing a strap. The strap is used to secure the male adapter in place. Once secured to the tree, the platform area can be attached to the male adapter using a female adapter. The ability to first secure the smaller, lighter bracket and male adapter to a tree before attaching the platform using a female adapter increases the ease in securing the tree stand to a tree.Type: GrantFiled: January 3, 2014Date of Patent: May 3, 2016Inventor: Anthony D Overbaugh
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Patent number: 9091120Abstract: A platform in combination with ladder-like rails combine to form an add-on device that is connected to a rung near the top of an extension ladder so that the platform is rotatably connected to the extension ladder and the ladder-like rails. In a storage or retracted position, the add-on device is generally co-planar with the extension ladder; and in a use position, the platform can be extended from the extension ladder and directly supported by a roof. The platform acts as a rigid support for the top of the ladder and does not deflect under load. The ladder-like rails act as “grab rails” so that a user can “grab” or hold on to them while walking through the top of the extension ladder. Also, one or more retractable hand rails provide added safety when the user moves onto the platform.Type: GrantFiled: February 9, 2012Date of Patent: July 28, 2015Inventor: Edward J. Gabriel
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Patent number: 8997932Abstract: A climbing safety assembly for securing a ladder to a stanchion includes a plate that may abut a stanchion so the plate extends laterally away from the stanchion. The plate selectively engages a ladder. The ladder is retained proximate the stanchion so the ladder may be safely climbed by a user. A hook is operationally coupled to the plate. The hook may selectively engage the stanchion so the hook retains the plate on the stanchion. A belt is operationally coupled to the plate. The belt may be extendable around the stanchion so the plate is retained on the stanchion.Type: GrantFiled: January 22, 2014Date of Patent: April 7, 2015Inventor: Steven Ochoa
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Patent number: 8844676Abstract: A ladder-like access device is suited for securing to a tire of a vehicle by way of a strap, rope, chain, cable or similar structure. The device may include extendable legs to adapt its length to a range of wheel and tire sizes. A variety of structures, materials and construction methods are described and claimed.Type: GrantFiled: April 24, 2012Date of Patent: September 30, 2014Inventor: Kim Carl Filkowski
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Patent number: 8833516Abstract: A tool for use with elevators and escalators, having two or more slidably connected assemblies, is provided. The assemblies have rails connected together and arranged in a parallel orientation. Support members are connected to the rails and a plurality of treads is attached to the support members. The treads are configured to provide a working surface upon which personnel can stand, sit or kneel and upon which materials can be placed. An extension member is connected to one end of the rails. Each extension member includes a locking member and a stop. Each locking member includes a first arm, a second arm and a third arm. In an open position, the third arm is in contact with the stop and in a closed position, the second arm is in contact with the stop. The assemblies are configured to bridge gaps formed within and around the elevators and escalators.Type: GrantFiled: May 23, 2014Date of Patent: September 16, 2014Assignee: Wurtec Elevator Products & ServicesInventors: Steven P. Wurth, Terry Rodebaugh
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Patent number: 8813913Abstract: Emergency access apparatus including a ladder and at least one multi-functional emergency access module mounted on the ladder, the at least one multi-functional emergency access module including window glass shattering functionality and window frame engagement functionality.Type: GrantFiled: September 27, 2011Date of Patent: August 26, 2014Inventor: Yoav Barzilai
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Patent number: 8776947Abstract: A tool for use in the construction and maintenance of elevators and escalators is provided. The tool includes a plurality of rails arranged in a parallel orientation, a plurality of support members connected to the plurality of rails and a plurality of treads attached to the plurality of support members. The plurality of treads is configured to provide a working surface upon which construction or maintenance personnel can stand, sit or kneel. The plurality of treads is further configured to provide a working surface upon which materials can be placed. The tool is configured to bridge gaps formed within the elevators and escalators and bridge gaps formed in building spaces in and around the elevators and escalators.Type: GrantFiled: February 23, 2012Date of Patent: July 15, 2014Assignee: Wurtec Elevator Products & ServicesInventors: Steven P. Wurth, Terry Rodebaugh
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Patent number: 8640826Abstract: A trailer rub rail portable ladder includes a ladder portion and two rub rail mounting members. One end of a hand rail may be attached to each rub rail mounting member. The ladder portion preferably includes two ladder side rails, a plurality of step members and two ladder hinge members. The plurality of step members are retained between the two ladder side rails. The ladder hinge member is attached to one end of the ladder side rail. Each rub rail mounting member includes a rail slot and a pivot hole. A pivot pin is inserted through each ladder hinge member and each rub rail mounting member to pivotally retain thereof relative to each other. The rub rail slots of the two rub rail mounting members are engaged with a rub rail of a truck trailer.Type: GrantFiled: December 16, 2011Date of Patent: February 4, 2014Inventor: Richard R. Beilstein
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Publication number: 20140008150Abstract: A roof ladder construction includes a roof hook assembly and a ladder to which the roof hook assembly is pivotally mountable for movement between two operative positions, a first of the operative positions being a position in which the roof hook assembly may extend over a roof ridge for engagement with a remote roof surface at a side of the roof opposite that at which the ladder is positioned and the other, second position being one in which the roof hook assembly does not engage with the remote surface of the roof.Type: ApplicationFiled: March 22, 2012Publication date: January 9, 2014Applicant: EASI-DEC ACCESS SYSTEMS LIMITEDInventor: Neil Ernest Baglin
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Patent number: 8596212Abstract: A boat boarding apparatus for boarding animals onto a boat and methods of using the apparatus. The apparatus has a set of boat boarding steps, a first mounting assembly attached to said boarding steps for connecting said boarding steps to said boat ladder and a second mounting assembly for connecting said boarding steps to said boat ladder. The mounting assemblies provide resistance forces for securing the ladder, with the resistance forces being opposing forces to one another.Type: GrantFiled: April 29, 2011Date of Patent: December 3, 2013Assignee: WAG Products, LLCInventor: James M. Perkins
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Patent number: 8528695Abstract: A ladder apparatus and system relating to detachably securing a ladder to linear, or non-linear, structures such as, for example, a tree, a telephone pole, a building pillar, etc., thereby assisting preventing the ladder from lateral movement. The system provides for width, depth and angle adjustment to assist clasping to different structural support geometries being attached thereto.Type: GrantFiled: January 9, 2012Date of Patent: September 10, 2013Inventor: Franklin M. Orpia
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Patent number: 8439163Abstract: Ladder safety devices including a gutter guard, a ladder extender, a ground spike and a ladder shoe, are described that improve the stability of a ladder placed against a structure with or without guttering. Embodiments of the gutter guard prevent the ladder from contacting the gutter, distribute the ladder's weight to minimize structural damage, avoid ladder-gutter contact resulting in and help to hold the ladder in place. The ladder extender offsets the ladder from the shingles of a roof when gutters are not present. The ground spike and ladder shoe stabilize a ladder placed on a soft or hard surfaces, respectfully.Type: GrantFiled: June 16, 2009Date of Patent: May 14, 2013Inventor: Denver Inman
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Patent number: 8261880Abstract: A step ladder apparatus for retention within a stake pocket comprising a frame assembly a plurality of step assemblies and an attachment assembly. The attachment assembly includes a frame flange and a wedge member. The frame assembly is positioned within the stake pocket so that the frame flange overhangs one end of the stake pocket. The base of the wedge member is inserted into the stake pocket opposite the frame flange so that the wedge flange overhangs the stake pocket on a side opposite the frame flange. As a result, the flanges cooperate to substantially preclude downward movement of the frame assembly, and, in turn, removal of the frame assembly in a downward direction from the stake pocket.Type: GrantFiled: March 7, 2008Date of Patent: September 11, 2012Inventor: Daryl J. Hop
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Patent number: 8011476Abstract: A ladder attachment for use on ladder tree stands, conventional ladders and otherwise to temporarily secure the top of the ladder to a tree or post. The ladder attachment includes a pair of pivotable jaws which can be closed around a tree and locked in place while standing on the ground. The ladder is temporarily secured so the user can climb the ladder and attach a more permanent, standard anchor belt. The method includes steps for affixing the ladder attachment to a ladder, positioning the ladder and ladder attachment against a tree, securing the ladder attachment to the tree and thereafter removing the ladder attachment and later the ladder for further use.Type: GrantFiled: March 6, 2009Date of Patent: September 6, 2011Inventor: C. Jerry Alcon
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Patent number: 8006803Abstract: The invention relates to a ladder comprising a single post (1) provided with a fixing means (4) on the upper end (1S) thereof, said ladder comprising an anchoring means (9, 10) which is especially adapted to said fixing means (4) and is attached to the wall (7), and foldable supporting arms (3) which are connected to either side of the single post (1) in an articulated manner.Type: GrantFiled: June 7, 2006Date of Patent: August 30, 2011Assignee: Airbus FranceInventor: Bernard Guering
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Patent number: 7963368Abstract: A ladder or climbing device has hollow tubular jaws at its head end that permit a rope or cable to pass around the target tree or pole. A tubular cable guide is positioned along side the vertical rail for feeding the cable to the hollow jaws. The rail is formed of extension sections that are joined together. A security clamp or clasp attached over both the head of the device and the cable to secure to the worker's safety harness.Type: GrantFiled: October 10, 2008Date of Patent: June 21, 2011Assignee: S & H Innovations LLCInventors: Sam S. Scudera, Joseph F. Hasto
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Patent number: 7950498Abstract: A stair climbing aid comprises two slide rails, an assist member, a control mechanism and two positioning assemblies. The slide rails and the assist member are assembled to handrails at both sides of the stairs. The control mechanism is disposed on the assist member to be controlled by the user. The positioning assemblies are disposed at both sides of the assist member, each positioning assembly is provided with an engaging portion to be engaged in the respective positioning portions of the slide rail. Thereby, an anti-slide effect is produced, so as to prevent the user from falling down the stairs and to help the user move from step to step safely.Type: GrantFiled: April 24, 2008Date of Patent: May 31, 2011Assignee: Nan Kai Institute of TechnologyInventors: Jiin-Hwa Yang, Hui-Li Weng
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Patent number: 7819225Abstract: An ice ladder has a climbing ladder mounted to an adjustable frame, with the adjustable frame including a securing apparatus mounting on a desired surface, especially an opening in an ice covered body of water. The ice ladder has an adjustable frame or member, a locking bar, and a climbing ladder releasably secured to the locking bar. The adjustable member is secured to the locking bar.Type: GrantFiled: August 20, 2007Date of Patent: October 26, 2010Inventor: Christopher L. Smith
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Publication number: 20100213009Abstract: A stabilizing mechanism for rigid fixed and extension ladders that includes an anchorage assembly removably mounted to one of the rungs of a ladder. A linkage assembly is mounted to the anchorage assembly through a transversally and rotably mounted elongated base that permits the setting of linkage assembly in one of several angular positions. Two arched arm members are pivotally mounted to a plate and also, with two linkage arms that are pivotally mounted to a swivel bracket, this two linkage assembly permits the arch members to move coplanarly between two extreme positions. The arm members releasably embrace a support structure thereby providing a firm engagement of the ladder to the support structure. A stabilizing pad assembly includes two pads mounted to adjustable elongate members to engage surrounding surfaces for more stability. A release mechanism remotely disengages the ladder from the support structure after a user descends from the ladder.Type: ApplicationFiled: May 5, 2010Publication date: August 26, 2010Inventors: Ruben Guinovart, Andres Angel Vulcano
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Publication number: 20100018803Abstract: An apparatus that fits onto a ladder for securing the ladder safely to a circular pole. The apparatus has a pair of curved arms that are each rotatable about a pivot so that they will close onto a pole. The arms are caused to rotate by a lever portion that contacts the pole as the ladder is forced toward the pole such as when it is set up and when a climber begins to climb the ladder. As the lever portion is forced against the pole the curved arm rotates to enclose the pole. The arms have a symmetrical control element in the form of meshed gears so that they act symmetrically as they are set up initially and as they rotated into the enclosing position.Type: ApplicationFiled: July 22, 2009Publication date: January 28, 2010Inventors: Donald R. Schwenke, Michael R. Cinquemani
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Publication number: 20090300994Abstract: A removable stairway device configured for attachment to a platform includes a removable step attachable to the platform and extendable from the platform in cantilever fashion. A gap is formed between the step and the elevated deck of the platform when the removable step is attached to the platform. A lock plate is pivotally coupled to the step. The lock plate pivots to cover the gap between the step and the elevated deck. A flange extends from the lock plate and engages a side of the platform to lock the step to the platform when the step is attached to the platform and the lock plate is pivoted to cover the gap.Type: ApplicationFiled: June 6, 2008Publication date: December 10, 2009Inventors: Livingston Elwood Atkins, III, David J. Laws
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Patent number: 7575097Abstract: A ladder attachment including an elongated one piece member preferably molded from an elastomeric material and formed with an arcuate cavity on one side sized to approximately correspond to the outside of a utility pole or tree trunk and having a pair of end parts each formed with a hole sized to receive the upper end of a ladder stile to be mountable crosswise to the upper end of the ladder. A pair of curved slits are formed into the one side of the member each extending around one side of the cavity to form a pair of concentric curved gripper wing portions concentric to the cavity which are drawn together with a strap, which has ends connected together with a cinch to secure the ends together.Type: GrantFiled: July 20, 2006Date of Patent: August 18, 2009Inventors: Vincent J. Sheridan, Christopher J. Schienke
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Publication number: 20090178886Abstract: A ladder stabilizer for reducing slippage by the bottom portion of a straight or extension ladder placed on a ladder surface has a left hook portion for engaging the left rail of the ladder, a right hook portion for engaging the right rail of the ladder, and a bent nose portion connecting the left hook portion and the right hook portion. The left hook portion and the right hook portion are spread for installation on the left and right ladder rails, respectively, with the bent nose portion extending downwardly between the ladder rails from the left hook portion and the right hook portion, then return to the spring-biased normal position following installation.Type: ApplicationFiled: January 11, 2008Publication date: July 16, 2009Inventor: Robert Dale Joyner
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Publication number: 20090178885Abstract: A ladder and walkboard support is installed within an open side of a construction scaffold, providing additional support rungs within the open side. The support has upper hooks that hang from an upper scaffold rung and lower saddles that engage the vertical surfaces of a lower scaffold rung, preventing the lower end of the support from swinging when installed. Walkboards may span a pair of supports installed in opposing open sides.Type: ApplicationFiled: January 14, 2009Publication date: July 16, 2009Inventor: William J. Heath
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Publication number: 20090145693Abstract: A ladder support bracket comprises a first clamp for clamping to an immovable structure connected to a second clamp for clamping to the ladder stile, the first clamp having a fixed and moveable jaw moving on a hinge shaft, and the second clamp comprising a clamping pad mounted on the hinge shaft distally from the first clamp for frictional engagement with the ladder stile upon rotation of the pad.Type: ApplicationFiled: May 9, 2008Publication date: June 11, 2009Inventors: Daniel Arseneault, Daniel Perreault
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Patent number: 7434661Abstract: The present invention may be used for climbing over a fence or a vertical barrier. A body may have a plurality of steps attached orthogonal to the body. The body may have a width and length to fit between two vertical bar fence elements and to position the steps generally perpendicular to a plane of a fence. A top hook may be attached to a top end of the body. A horizontal bar may be attached at a bottom end of the body generally orthogonal to the steps. A rotatable member may be rotatably attached to the body and may be spaced apart from the body by a pedestal.Type: GrantFiled: June 7, 2005Date of Patent: October 14, 2008Inventor: Robert D. Storey
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Patent number: 7219766Abstract: A mid-span fall protection system including a remotely attachable fall protection latching mechanism for attachment to an elevated horizontal strand. The fall protection latching mechanism may be used with an elongated rigid structure for extending between a support surface and the elevated horizontal strand, where the fall protection latching mechanism is attached to an upper end of the elongated rigid structure. The fall protection latching mechanism includes a hook portion for engaging over the elevated horizontal strand to provide a support for the fall protection latching mechanism, and a fall protection line coupling structure attached to the hook portion for providing a direct connection between the hook portion and a fall protection line. A fall protection line is also provided having an upper end attached to and supported by the coupling structure, and includes a lower end located adjacent a lower end of the elongated rigid structure at the support surface.Type: GrantFiled: June 29, 2004Date of Patent: May 22, 2007Inventor: Joseph F. Deuer
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Patent number: 7168523Abstract: A suspended step assembly that is attachable over the tire of a motor vehicle and which can support a mechanic working in the engine compartment. It has a frame that can be broken down into sub-parts for compact storage in a motor vehicle, is easy and fast to assemble and disassemble, is adjustable to differing tire widths, has an upper configuration that securely hooks over the top of the tire, has a strong and simple closed-loop tubular structure that resists parallelogram deforming while under load, has a step that is secured into a fixed position on the frame without fasteners, and has a bottom stirrup under its step. Applications may include, but are not limited to, use by mechanics to more easily and efficiently perform engine work, and use by those needing to clean or otherwise have access to the upper portions of high-profile vehicles.Type: GrantFiled: March 14, 2006Date of Patent: January 30, 2007Inventors: Craig A. Tafoya, Mary E Tafoya, Samuel Barran Tafoya