| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 182194000 | LADDER | 79 |
| 20090038886 | LADDER ASSEMBLY FORMED FROM INTEGRAL MATERIAL BLANK - A ladder is formed from an integral material blank having a pair of opposed side portions integrally joined to a central portion disposed between the side portions. The central portion includes a number of step portions spaced from one another along the length of the side portions. Each step portion includes a front edge integrally formed with the side sections and a step surface integrally formed with the front edge. The front edge of each step portion is joined to each of the pair of side portions and o the step surface along a pivot line that enables the side portions and the step surface to be manually bent with regard to the front edge when assembling the ladder assembly from the material blank. | 02-12-2009 |
| 20090065302 | Fiberglass reinforced plastic products having increased weatherability, system and method - Climbing products containing rails decorated using veil products colored, patterned, painted or in combination with marking methods such as company names and logos and resin formulation designed to withstand exposure to UV radiation with minimal change in appearance which create specific appearances for applications, enhance weathering performance, and facilitate processing efficiency. A combination of a filler free resin and coated veil systems to create a synergistic weather resistance surface with self contained color, pattern, picture, logo or combination of said same for climbing products. A system for producing components. Various methods, system, a ladder rail. | 03-12-2009 |
| 20100219019 | BOARDING LADDER FOR INFLATABLE WATERCRAFT - A portable boarding ladder is attached to a rubberized portion of an inflatable boat without the use of piercing fasteners and does not require a hard point mounting structure. A base ladder section and a climbing ladder section are pivotally coupled together and supported in an operative, stand-off boarding position along a curved hull surface of a pontoon boat by a pair of hook support brackets and a pair of latch retainer brackets. The support brackets are bonded to the pontoon by adhesive deposits. A lateral cross bar tubing segment of the base ladder section is supported by hanging engagement on the hook brackets. A pair of side rail tubing segments of the climbing ladder section are retained and secured against lateral shifting displacement and rotation relative to the pontoon by snap-fit engagement against resilient arm portions of the latch retainer brackets. | 09-02-2010 |
| 20110011679 | LADDER - A ladder comprises two stiles and at least a step unit mounted between the two stiles. The step unit includes a hollow step, an inner sleeve and an outer sleeve. The inner sleeve is fit into the hollow step, at an end of which a position restriction portion is located to prevent the inner sleeve from moving out, and the outer sleeve is adapted to surround the end of the hollow step. Besides, a fastener is set, the fastening end of which is passed through the stile, the outer sleeve and fastened in the inner sleeve. The present technique solution has a high supporting strength and a high shear resistance. | 01-20-2011 |
| 20110147123 | TOP TREAD FOR ALUMINUM LADDER - A top tread for aluminum ladder includes a splice aluminum member | 06-23-2011 |
| 20110209947 | ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM - A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed. | 09-01-2011 |
| 20110232999 | Ladder with rails adapted for attaching accessories - Designs for adapting a ladder rail so that accessories to the ladder can be quickly and securely mounted and released without using tools. Aspects of the invention include: (1) configurations of holes in ladder rails for receiving accessories for toolless attachment and release; (2) catches affixed to the rail to secure the accessory; (3) attachment bases permanently mounted to the ladder rail with structures for toolless attachment and release of accessories to the base; (4) catches affixed to the base to secure the accessory; (5) attachment structures on the accessory for toolless attachment and release of the accessory to a base or a ladder rail; and (6) catches affixed to the accessory to secure the accessory to a base or rail. | 09-29-2011 |
| 20120061182 | Multi-Positional Articulating Hinge with Internal Stops and Remote Actuation and Methods for Manufacturing the Same - An indexing hinge may be used with ladders and the like and provides stops at various indexed locations using radially-moving indexing pins. The indexing structure is contained within the hinge body substantially without projecting elements other than one or more indexing rods used to actuate the internal indexing mechanism. | 03-15-2012 |
| 20120125715 | ERGONOMIC LIGHTWEIGHT CLIMBING STICK - A modular tree climbing ladder including a support member, at least one stabilizing bracket secured to the support member, and a pair of steps pivotally secured to the support member. The support member includes a front piece and a rear piece configured to form two channels that oppose one another and form an interior angle of less than 180 degrees. The steps are each pivotally secured to the support member within one of respective said opposing channels such that each of said steps oppose one another and form an angle equal to said interior angle. The steps are independently rotatable from a vertical (or storage) position to a horizontal (or operational) position. The steps include a stepping surface and are secured to said support member such that respective stepping surfaces are coplanar when both steps are in the horizontal position. The modular tree climbing ladder can further include a securing belt mounting bracket that is secured to the support member. | 05-24-2012 |
| 20120228061 | LADDERS, LADDER COMPONENTS AND RELATED METHODS - Ladders, ladder components and related methods are provided. In some embodiments, adjustable stepladders are provided which include locking mechanisms that enable height adjustment of the ladder through application of a force towards the rails of the ladder. In other embodiments, spreader mechanisms are provided with cross bracing located and configured to provide additional stability to the ladder while also incorporating a handle that enables efficient collapsing of the ladder while reducing the potential of pinching ones hands or fingers. In another embodiment, a device is provided for selective coupling with the ladder that includes a support or safety rail and an adjustable tray. The device may be coupled with the ladder in a number of different positions including a stowed position. In another embodiment, a hinge assembly is provided having a magnetic component configured to be magnetically coupled with and temporarily store an object on the ladder. | 09-13-2012 |
| 20120267197 | EXTENDABLE / RETRACTABLE LADDER - An extendable/retractable ladder assembly includes a first stile and a second stile and a plurality of rungs extending therebetween. Each stile may comprise a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion. A connector assembly connects the rungs to respective columns in the first and second stiles. The ladder has improved manufacturability since connector assemblies may be assembled before connecting the rungs to respective columns. The standing surface of the rungs may be angled such that it is rotated towards horizontal when the ladder assembly is leaned against a wall. A latch assembly may be used to selectively lock relative axial movement between adjacent columns. The latch assembly includes a locking pin assembly comprised of a central post and an outer metal sleeve. An air damper may also be used to control airflow through the columns. | 10-25-2012 |
| 20120285771 | LADDERWAY SYSTEM FOR UNDERGROUND RAISES - An improved ladderway system | 11-15-2012 |
| 20140069742 | Three/four step ladder with a curve about - A three-step pool ladder having the capability to have a fourth step and/or a curve-about ladder apparatus. | 03-13-2014 |
| 20140102830 | Fiberglass Reinforced Plastic Lightweight Heavy-Duty Ladder and Method of Making Same - A fiberglass reinforced lightweight heavy-duty ladder, and method of making the same, is presented. The method includes impregnating rovings with a resin system and forming the impregnated rovings into a set of rails having a center portion, a left sidewall portion, and a right sidewall portion, where the left sidewall portion and the right sidewall portion each have an article roving density at least 10% greater than that of the center portion. | 04-17-2014 |
| 20140311830 | Ultra Lightweight Segmented Ladder/Bridge System - A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed. | 10-23-2014 |
| 20150376946 | THERMOPLASTIC PULTRUDED PROCESS AND RELATED PRODUCTS - A pultrusion process comprises steps of: pulling a matrix of continuous reinforcement fibers through a wet-out chamber and forming die while injecting thermoplastic resin (e.g. thermoplastic polyurethane) into the wet-out chamber, and providing secondary stations that remove, reform, and/or add material downstream of the forming die using heat and pressure to form a final beam shape with integrally-formed features thereon. The reinforcement matrix is optimally glass fiber, but can include different types of reinforcements, including strands, bundles, mats, weavings, rods, and other reinforcements and combinations of reinforcements, each of which can be strategically located in the beam profile. The final beam includes intermittent or continuous specialized features integrated into the beam along its length, allowing reduction of material waste, reduced/minimized later assembly, and reduced total number of parts. | 12-31-2015 |
| 20160040479 | Fiberglass Reinforced Plastic Lightweight Heavy-Duty Ladder and Method of Making Same - A fiberglass reinforced lightweight heavy-duty ladder, and method of making the same, is presented. The method includes impregnating rovings with a resin system and forming the impregnated rovings into a set of rails having a center portion, a left sidewall portion, and a right sidewall portion, where the left sidewall portion and the right sidewall portion each have an article roving density at least 10% greater than that of the center portion. | 02-11-2016 |
| 182195000 | Slidable nested single rung units | 8 |
| 20090050407 | Locking Mechanism for a Ladder - A locking mechanism for a collapsible ladder ( | 02-26-2009 |
| 20100044155 | EXTENDABLE / RETRACTABLE LADDER - An extendable/retractable ladder assembly includes a first stile and a second stile and a plurality of rungs extending therebetween. Each stile may comprise a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion. A connector assembly connects the rungs to respective columns in the first and second stiles. The ladder has improved manufacturability since connector assemblies may be assembled before connecting the rungs to respective columns. The standing surface of the rungs may be angled such that it is rotated towards horizontal when the ladder assembly is leaned against a wall. A latch assembly may be used to selectively lock relative axial movement between adjacent columns. The latch assembly includes a locking pin assembly comprised of a central post and an outer metal sleeve. An air damper may also be used to control airflow through the columns. | 02-25-2010 |
| 20100270106 | SECURING DEVICE FOR EXTENDING LADDER - A ladder is composed of a plurality of rung units and each unit includes two hollow tubes and a rung connected between the two hollow tubes. The hollow tubes of the rung units have gradually reduced outer diameters so that the hollow tubes can be telescopically received to form a compact size. The rung is connected to the two hollow tubes of each rung unit by two connectors and each connector includes two buttons which can be pushed in the direction perpendicular to the axis of the rung to release the interlock connection between the rung and the hollow tubes so as to easily collapse or extend the ladder. | 10-28-2010 |
| 20100307870 | TELESCOPIC LADDER - A telescopic ladder having two mutually adjacent side rails and rungs disposed between the side rails, wherein the side rails include a plurality of substantially tubular, telescoping side rail portions and mutually adjacent side rail portions connected to one another by a rung wherein the side rail portions have a locking unit with which the side rail portions can be locked against the respectively next lower side rail portion in the extended setting. | 12-09-2010 |
| 20110240405 | Tubular access ladder and method - An access ladder includes a plurality of sections connected together to telescope between an extended position and a retracted position that has an increasing reactive force to counterbalance the weight of the sections as they extend. A method for accessing a room with a ladder connected to a ceiling including the steps of moving the ladder to a fully extended position subject to an increasingly active force to counterbalance the weight of the ladder as it extends. There is the step of retracting the ladder into a retracted position in the ceiling. | 10-06-2011 |
| 20110247897 | COLLAPSIBLE LADDER - A ladder having several collapsible ladder sections ( | 10-13-2011 |
| 20150337597 | COLLAPSIBLE LADDER ARRANGEMENT AND METHOD OF ATTACHING A WEBBING SUPPORT TO A RUNG OF THE SAME - A collapsible ladder arrangement includes, a plurality of rungs, and at least one webbing support that is frictionally engaged with each of the plurality of rungs to resist relative movement between the at least one webbing support and each of the plurality of rungs. The frictional engagement is established without an end of the at least one webbing support having been threaded through an opening in the plurality of rungs and without the at least one webbing support frictionally engaging with itself. | 11-26-2015 |
| 20160032648 | Collapsible Ladder - There is provided a collapsible ladder having several collapsible ladder sections, where each or at least part of the ladder sections comprises two hollow ladder bars arranged parallel to each other and interconnected at an upper end by a rung, and where each collapsible ladder section is telescopically inserted into a lower ladder section. Each ladder bar of a collapsible ladder section has a locking hole adjacent the lower end part of the ladder bar and an extension below the locking hole, and retaining mechanisms are provided in at least part of the rungs for locking the collapsible ladder sections relative to one another when the collapsible ladder sections are extended. Each of or part of the retaining mechanisms comprises a locking pin, which can be brought into an extended and locked position in order to engage a corresponding locking hole provided in the ladder bar of a ladder section positioned there above, and are lease part for bringing the locking pin into a retracted and unlocked position. At least part of the rungs holding a retaining mechanism with a locking pin and a release part have spacers provided at the bottom, where at least part of said spacers have a release actuator with a bottom part. The release actuator engages the release part of a retaining mechanism of the rung and is arranged to activate the release part when the bottom part of the release actuator is moved upwards through the spacer thereby bringing the locking pin into the un-locked position. | 02-04-2016 |
| 182196000 | Flexible | 5 |
| 20080289904 | Rope Ladder - The present invention relates to a method and apparatus for providing a flexible ladder for traversing a structure that addresses problems common with conventional rope ladders. | 11-27-2008 |
| 20090014241 | Building Escape System - An escape system for a building, including a belting ladder formed by an endless band of a flat flexible reinforced belting material with a plurality of longitudinally-spaced apertures each with a substantially transverse edge portion forming rung-like features therealong for human engagement, and a control apparatus having (a) a support structure mountable to the building, the support structure having a central shaft and a rotatable pulley member secured thereto with the endless band therearound, (b) a speed limiter mounted with respect to the main shaft for restraining rotation of the pulley member during human descent by belt movement. In some embodiments, the control apparatus also includes a winder device adjacent to the pulley member and having at least one winder rod engageable with the belt and orbitable with an engaged portion thereof about the pulley member. | 01-15-2009 |
| 20090065303 | Marine emergency rope ladder apparatus - An improved marine emergency rope ladder apparatus includes: (a) a continuous piece of rope knotted so as to form a safety ladder having a top and a bottom-free end, two side pieces that form a loop at the top of the ladder which is used to attach the top of the ladder to the surface to which it is to be affixed, and a plurality of rungs extending between these side pieces, (b) a pull rope whose top end is attached proximate the free end of the ladder and whose length is such that its bottom end is place proximate a water surface to which the ladder is to be extended, (c) a covering for the ladder in the form of a sleeve with a top flap and a means for releasably connecting the covering's bottom portion so that it can support the weight of the ladder fitted within the covering, and wherein this releasable means is configured so that a pull on the pull rope causes the releasable means to open the covering's bottom so as to allow the free end of the ladder to fall to the water below. | 03-12-2009 |
| 20120080270 | Apparatus and method for a portable pathway - A method of providing a traversable path along a surface that includes the steps of placing a portable pathway onto the surface, securing the portable pathway in situ, and adjusting the step to a desired position. The method includes the portable pathway having at least one adjustable step connected thereto. A portable pathway apparatus for providing a traversable path over a surface that includes a pliable frame member comprising one or more layers of reinforced rubber, at least one step adjustably connected to the pliable frame member, whereby at least one step includes an adjustment mechanism associated with a horizontal member. The apparatus has at least one securing element coupled with the pliable frame member, the securing element configured to secure the portable pathway to the surface. The surface includes a contour with at least a first angled surface and a second angled surface, and the pliable frame member forms to the contour. | 04-05-2012 |
| 20120080271 | Apparatus and method for a portable pathway - A method of providing a traversable path along a surface, the method including the steps of placing a portable pathway onto the surface, the portable pathway having a frame member comprising at least a first layer, and at least one adjustable step coupled with the frame member. The method further includes securing the portable pathway in situ, and adjusting the step to a desired position. | 04-05-2012 |
| 182200000 | Supporting surface compensating means | 13 |
| 20080196973 | LADDER LEVELLING APPARATUS - A ladder levelling apparatus includes a ladder having a pair of side rails in spaced relation with a cross member extending the pair of side rails, a bracket affixed to the cross member, and a bar slidably received within the bracket so as to have ends of the bar respectively extending outwardly beyond the pair of side rails. A first foot and a second foot are respectively affixed to the ends of the bar. The bar is arch-shaped such that the ends are positioned below the bottom of the pair of side rails when the bar is centered relative to the side rails. A receptacle extends from the bracket suitable for receiving the bar therein. | 08-21-2008 |
| 20110186383 | CURVED LADDER FOR TANK ACCESS - A ladder is designed for a tank having a vertically extending side wall and a top of a convex curved profile, with an access point near the top center of the convex curved top, the ladder having a pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end, the curved section extending over the top of the tank and toward the access point, with plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails. | 08-04-2011 |
| 20120241256 | Curved Ladder for Tank Access - A ladder is designed for a tank having a vertically extending side wall and a top of a convex curved profile, with an access point near the top center of the convex curved top, the ladder having a pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end, the curved section extending over the top of the tank and toward the access point, with plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails. | 09-27-2012 |
| 20150068842 | ADJUSTABLE LADDERS, LADDER COMPONENTS AND RELATED METHODS - Ladders, ladder components, adjustment mechanisms and related methods are provided herein. In one embodiment, a ladder may include an adjustment mechanism for adjusting, for example, a leveler, a stabilizer, or any two relatively displaceable components of the ladder. The adjustment mechanism may include an actuating mechanism having a first structure and a second structure slidably disposed adjacent the first structure, the second structure having a plurality of engagement surfaces. A body is coupled with the first structure. At least two engagement pins are slidably displaceable relative to the body, wherein the plurality of engagement surfaces and the at least two engagement pins are arranged such that only a single engagement pin of the at least two engagement pins is in abutting engagement with an engagement surface of the plurality of engagement surfaces at one time. At least one biasing member is configured to bias the at least two engagement pins towards engagement with the engagement surfaces. | 03-12-2015 |
| 20160090785 | ADJUSTABLE LADDERS AND RELATED COMPONENTS - Adjustable ladders may include a pair of side rails having a plurality of rungs extending therebetween, and a pair of adjustable legs associated with the side rails. A pair of swing arms may include a first end pivotally coupled with a side rail, or a bracket associated with the side rail, as well as a second end pivotally coupled with an adjustable leg. The swing arm may be configured as a nonlinear structure. In one embodiment, the swing arm may include a first section that extends from a second section at a defined angle. The first and second sections may exhibit different lengths. Adjustment mechanisms may be pivotally coupled with an upper end of the adjustable legs. In one embodiment, the adjustment mechanisms may be configured such that, when actuated, they may be displaced in one direction while resisting displacement in a second, opposite direction. | 03-31-2016 |
| 182201000 | Stile extension | 8 |
| 20110214946 | DEVICE CAPABLE OF EXTENDING A FOOT END OF A LADDER - A device capable of extending a foot end of a ladder includes a box tube section with an elongated hole, a long engaging plate with an elongated hole and a plurality of inserting teeth, a short engaging plate with a central fixing hole, two pairs of engaging slots and an engaging nut, and a knob head bolt. The knob head bolt passes through the elongated holes, and the central fixing hole to be tightened to the engaging bolt via a rail of the ladder. The long and short engaging plates are disposed in the box tube section to face to each other. The knob head bolt is loosened or tightened to cause two pairs of the inserting teeth disengaging or inserting into the engaging slots for the box tube section being operated to extend a distance outward the rail stably and safely. | 09-08-2011 |
| 20110303489 | APPARATUS, SUCH AS A LADDER, COMPRISING EXTENDABLE LEGS - A supporting element for an object includes a first leg member and a second leg member. The first leg member is axially movable relative to the second leg member for axially extending the support member. The first leg member includes a house slidably arranged for receiving the second leg member. The house includes a locking element having a locking position for locking the relative axial movement of the first leg member with respect to the second leg member, and an open position for enabling relative axial movement of the two members. A catch may be provided in the locking element. The catch may be tiltably movable within the house for alternately acquiring the locking position and the open position of the locking element. The catch may include a cavity receiving the second leg, wherein the cavity has a stopping surface engaging at least opposed perimeter parts of the second leg member in a locking position of the locking element. | 12-15-2011 |
| 20120037454 | ADJUSTABLE BASE EXTENDER FOR A LADDER - A base extending mechanism is provided for a ladder in the form of pivotable lower leg sections which can be independently rotated outwards to provide a wider ladder base. This extension of the ladder base is complementary to and supported by a compatible ladder levelling mechanism. | 02-16-2012 |
| 20140020981 | Self Levelling Support Apparatus - A support apparatus includes at least first and second legs, and levelling means including: at the lower end of each of the first and second legs a cylinder and piston unit, wherein movement of the pistons of the cylinder and piston units relative to the cylinders permits variation in the length of each of the first and second legs; fluid communication means for establishing at least one closed fluid passageway between the cylinder and piston units; and valve means for controlling the passage of fluid through the fluid communication means. In a first position, the valve means permit fluid to flow between the cylinder and piston units via the fluid communication means such that the length of each of the legs is accommodated to the profile of the ground, and in a second position, the valve means do not permit fluid to flow between the cylinder and piston units thereby locking the cylinder and piston units in position. | 01-23-2014 |
| 182202000 | Equalizing extensions | 1 |
| 20140083799 | LADDER LEVELLING AND STABILISING DEVICE - The device is used to level and stabilise a ladder | 03-27-2014 |
| 182204000 | Increment adjustment | 3 |
| 20090183949 | STEPLADDER - A stepladder includes a first ladder having a first side rail and a second side rail and step members disposed there between. A second ladder includes a third side rail and a fourth side rail and step members disposed there between. Such ladders are pivotally connected for positioning between an open position and a closed position. A platform is at least one of pivotally attached to an upper end of at least one of such first side rail, such second side rail, such third side rail, and such fourth side rail, and permanently attached to an upper end of at least one of such first side rail, such second side rail, such third side rail, and such fourth side rail, and a combination thereof. A telescoping portion is disposed on each bottom end of such side rails, for selectively extending and retracting the length of each side rail. | 07-23-2009 |
| 20090255759 | Ladder stabilizing and standoff system - A ladder stabilizing system and standoff device comprising a base having a leg receiving portion typically a straight member. The base also includes a U-shaped member. The leg receiving member has removed ends that may telescopically receive a number of different shaped removable legs. The removable legs are in various configurations for use with walls of various configurations. The U-shaped member will attach by clamps to the ladder and the leg receiving member of the base, with the legs thereon, will rest against the wall, when the system is in use. | 10-15-2009 |
| 20150053504 | Ladder safety lelel ("LSL") - A safety device for non-self supporting ladders, straight or extension, which provides the user exact indication when the correct and legal ladder inclination is achieved at set-up and during ladder use allowing safe climbing or descent of the ladder. The device color is a visual safety prompt on the exterior of the ladder and provides supervisory monitoring. Said safety device is automatically self-calibrating and permanently calibrated in the ladder with a revolutionary easy nontechnical insertion into the rung opening located on the side of ladders. The device uses a simple bubble level inside a revolutionary housing whereas when the bubble is inside the lines of the level, the ladder is at a safe inclination and the rungs are level. The safety device does not require specific language knowledge, is independent of ladder length, user characteristics, user training, user knowledge and does not affect whatsoever any other ladder functions. | 02-26-2015 |
| 182206000 | With hook or grab | 6 |
| 20090145693 | Ladder support bracket - 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. | 06-11-2009 |
| 20090178886 | Ladder stabilizer - 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. With the ladder stabilizer positioned with the bent nose portion touching the ladder surface, a force applied against the bent nose portion downwardly and toward the ladder frictionally biases the left hook portion in place around the left ladder rail, frictionally biases the right hook portion in place around the right ladder rail, and frictionally biases the bent nose portion of the ladder stabilizer against the ladder surface, thereby resisting slippage of the ladder on the ladder surface. | 07-16-2009 |
| 20100018803 | Ladder Safety Apparatus and Method - 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. | 01-28-2010 |
| 20100213009 | STABILIZING MECHANISM FOR LADDERS - 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. The engagement is kept by a locking mechanism that includes a pivoting mounted plate with a central opening A shaft rigidly mounted to the rigid plate coacts in the edge of the centered opening to permit the shaft to move in on direction only. | 08-26-2010 |
| 20160108670 | Ladder Holder - A ladder holder for mounting a ladder in an upright orientation relative to a retaining wall is disclosed. The holder includes a mounting portion for coupling in fixed relation to the wall in a mounted position and a support portion supported fixedly on the mounting portion. The mounting portion has a first clamping surface and a second clamping surface that is moveable relative to the first clamping surface. The first and second clamping surfaces frictionally engage the inner and outer surfaces of the top beam of the retaining wall. The support portion has upper and lower rung-receiving slots used in conjunction to mount the ladder on the support portion at a fixed angle relative to the mounting portion. Furthermore, the storage slot suspends the ladder vertically from the support portion independently of the upper and lower slots. | 04-21-2016 |
| 20220136328 | LADDER SAFETY DEVICE - A ladder safety device ( | 05-05-2022 |
| 182207000 | Extension | 22 |
| 20090107768 | Ladder - A ladder is disclosed which includes a pair of side rail members having step plates selectively vertically movably mounted thereon to enable the user to climb upwardly on the side rail members or to climb downwardly thereon. The ladder may be converted from an A-frame type ladder to an extension type ladder. | 04-30-2009 |
| 20090301816 | Combo brace rail shield - A brace rail shield combination for a rail of a ladder having at least one rung having a first portion that has a shape that conforms with an interior cross sectional surface of the rail. The brace rail shield combination includes a second portion that extends from the first portion at a first location to the rung to provide structural support to the rung. The second portion having an attachment portion at a second location spaced apart from the first location that is fixed to the rung. The first portion and the second portion being one continuous piece. A method for using an extension ladder. A method for producing a knee brace rail shield combination. | 12-10-2009 |
| 20130248289 | Method For Producing a Combo Brace Rail Shield - A brace rail shield combination for a rail of a ladder having at least one rung having a first portion that has a shape that conforms with an interior cross sectional surface of the rail. The brace rail shield combination includes a second portion that extends from the first portion at a first location to the rung to provide structural support to the rung. The second portion having an attachment portion at a second location spaced apart from the first location that is fixed to the rung. The first portion and the second portion being one continuous piece. A method for using an extension ladder, A method for producing a knee brace rail shield combination. | 09-26-2013 |
| 20150075908 | LADDERS WITH PHOTO LUMINESCENT AND REFLECTIVE COMPONENTS AND RELATED COMPONENTS AND METHODS - A visual indicator for a ladder is provided which may include a component having a photo luminescent material, a component have a reflective material, or both. In one embodiment, the visual indicator includes a rung plug having a cap portion and a body portion, the body portion being configured to be inserted into the interior hollow of a ladder rung such that the cap portion is visible along the side of an associated ladder rail. The cap portion may comprise a photo luminescent material, a reflective material or both. In one embodiment, the cap portion comprises a photo luminescent material while a separate reflective indicator is placed on the ladder rail at a location adjacent the rung plug. | 03-19-2015 |
| 20150114755 | MARINE LADDER - A marine ladder comprising a pair of laterally spaced step support members having a plurality of steps secured therebetween; said steps positioned between a lower portion and an upper portion of said step support members; an attachment member to secure said ladder to a platform; an adjustable support leg extending outwardly to abut a portion of said platform thereby positioning said steps in a generally horizontal plane; and wherein each successive step from said upper portion to said lower portion has a larger step tread than a preceding step. | 04-30-2015 |
| 20160090782 | Floating Ladder - The instant application discloses, among other things, a Floating Ladder. In one embodiment, it may comprise a ladder capable of attaching to any object, such as a fixed or floating dock, for instance. Floating Ladder may include a floatation device at its base, which may allow the ladder to ascend above the surface of the water when the ladder is not in use. This may prevent the Floating Ladder from sustaining damage from any natural or artificial substance, object, or organism, which may render the ladder unsafe or unusable, for instance. In another embodiment, Floating Ladder may include multiple sections to allow a user to telescope the ladder further into the water when necessary. | 03-31-2016 |
| 20160101738 | APPARATUS FOR GAINING ACCESS TO LIFT VEHICLES - The apparatus ( | 04-14-2016 |
| 20160123079 | EXTENSION LADDER, LADDER COMPONENTS AND RELATED METHODS - 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. | 05-05-2016 |
| 182208000 | Mechanical or power-extending | 2 |
| 20130192926 | Extension ladder - An extension ladder is disclosed. The extension ladder includes a bottom stage and a top stage that are interlocked and configured to telescope with respect to each other, such that the top stage extends from a back surface of the bottom stage to an extended position. In the extended position the bottom stage and top stage are locked and secured together through one or more securing features such that overlapping rungs from the bottom stage and the top stage are substantially aligned and parallel to provide a stable stepping plane with the extension ladder leaning to form an acute angle between the back surface of the bottom stage and a support surface. | 08-01-2013 |
| 20140097042 | Motorized Extension Ladder - A motorized extension ladder comprising a stationary first section, a moveable second section which is reversibly moveable from a proximate location to a distal location, a first cable pulley system with a first cable and first pulley to reversably move said moveable section from said proximate location to said distal location, and back, by a motor. The motor can be permanently affixed to the ladder, or operatively connected as required. A series of pulleys is provided which are moveable by rotation of a threaded rod, in order to cause the moveable section of the ladder to extend or retract. A motorized method for extending or retracting an extension ladder is provided. | 04-10-2014 |
| 182209000 | With latch | 12 |
| 20080236949 | MULTI-SECTION LADDER - A multi-section ladder comprises a first ladder and at least one second ladder which respectively includes two upper and lower stiles, two coupling members and a plurality of rung assemblies, the upper stiles provided at the upper ends thereof with two retaining members, the lower stiles provided at the lower ends thereof with two support seats, in specific directions of the support seats in response to the retaining members being individually formed two recesses, the coupling members covered onto the lower ends of the upper stiles and the upper ends of the lower stiles, and the rung assemblies which are equally spaced apart from each other mounted between the inner walls of the two upper or lower stiles, and each of the rung assemblies including two side plates and a rung, thereby disassembling the upper and lower stiles from each other so as to be small in the size of the present invention while in storage. | 10-02-2008 |
| 20090065304 | Extendable and retractable ladder - An extendable and retractable ladder which comprises a plurality of ladder sections, each of which is stackable upon and nestable within the adjacent ladder section. A locking means is disposed between adjacent ladder sections to lock relative installation positions of the ladder sections. The locking means is disposed in a middle portion of the rung of the ladder section and it comprises a left and a right locking rods which move in synchrony with each other, a spring which connects the left and the right locking rods, and a left and a right controlling handles which are connected to the left and the right locking rods respectively. Locking holes are disposed on adjacent ladder sections and free ends of the left and the right locking rods at corresponding positions. As only one single hand is required to simultaneously pull the left and the right controlling handles to unlock the ladder sections, the present invention is more convenient to use. | 03-12-2009 |
| 20090200113 | LADDER ASSEMBLIES - An extension ladder includes a pair of nested outer and inner ladder rails. Ladder rungs connected between and the inner rails define a plurality of supporting openings and the inner rails include outer bearing surfaces associated with the supporting openings. An extension latch mechanism having a pivoting dog is coupled to an outer rail and engages the supporting openings and outer bearing surfaces to support the ladder in an extended position. | 08-13-2009 |
| 20110005864 | RETRACTABLE LADDER - The present invention discloses a retractable ladder which is a common climbing tool in daily life and engineering industry. The retractable ladder comprises a pedal operated unlock device, section-positioning lock devices and an accidental operation preventing device. The main components of the unlock device is disposed in the first ladder section and enclosure caps at upper ends of each ladder section, except for the uppermost ladder section, are provided with the lock devices and unlock nose spikes. The retractable ladder is changed from an extended state to a folded state simply by operating the unlock device with foot of the user so as to release the lock of the ladder. Consequently, the retractable ladder will automatically retract to descend all of the ladder sections from top to bottom in turn. When the ladder is changed from the folded state to the extended state, section-positioning pins are pulled out downwardly from the uppermost ladder section so as to lock the ladder sections. The retractable ladder of the present invention is configured to extend and retract conveniently, and the use of the ladder is very easy. Further, the retractable ladder is advantageous in ease of assembling and maintenance, Meanwhile, safety is ensured so as to prevent hurts of hands of the user which may occur when a manual retractable ladder is used. In addition, the retractable ladder has advantages of low cost, safe operation and prominent improvements to the art. | 01-13-2011 |
| 20110036666 | Retractable Ladder - A retractable ladder includes telescoping rail sections each having left and right side rail members. Each side rail member has two aligned locking holes. A control device includes a shaft disposed rotatably between the side rail members of one of the rail sections, and two locking units each having a controlled piece fixed to and rotatable along with the shaft, two abutment plates, two locking pins, and two spring members biasing the abutment plates to abut respectively against two opposite sides of the controlled piece. The controlled piece is rotatable between a pushing position to push the locking pins to project outwardly from the locking holes in said one of the rail sections and engage respectively the locking holes in the adjacent rail section, and a non-pushing position, where the locking pins are permitted to extend inwardly so as to disengage from the locking holes in the adjacent rail section. | 02-17-2011 |
| 20110100754 | Access ladder and method - An access ladder for an access hole in a building includes a plurality of sections which telescope relative to each other between an extended position, where the sections define a plane and a user can climb the sections, and a retracted position where the sections are folded on each other. Several of the sections have a least one step which preferably moves between an unfolded position where the user can stand on the step when the sections are in the extended position, and a folded position when the sections are in the retracted position. Each section slides relative to another section of the plurality of sections which it is in contact in order for the sections to telescope. A method for using an access ladder attached to an end of an access hole of a building. | 05-05-2011 |
| 20140374192 | PORTABLE LADDER WITH A STAND OFF DEVICE - A portable ladder has two stiles interconnected by rungs. The ladder is provided with a stand off device, including two stand off arm assemblies, each being telescopically inserted into a receiving space. Each stand off arm assembly has a base part and a stand off arm interconnected by a hinge that allows the stand off arm to be pivoted between a position in alignment with the base part and an angled stand off position. The stand off arm assemblies are each configured such that—in extended position—the hinge is located outside the receiving space with the base part being located within said receiving space, and also such that—in retracted position—the base part, the hinge, as well as at least a portion of the stand off arm are located within the receiving space. | 12-25-2014 |
| 20150047927 | REMOVABLE LOCK FOR ATTACHING ADDITIONAL EXTENSION LADDER - A removable locking device for attaching a base ladder to one or more flys of an extension ladder is disclosed herein. The removable locking device is slightly greater in width than the extension ladder. This allows the locking device to simultaneously grasp both the left and right sides of both the base extension ladder and the additional fly extension ladders. The side rails comprise cavities for a plurality of rungs of the extension ladder. The locking device contains insertion pins for engaging the rung cavities along the side rails of the ladders. The locking device contains a further clamping mechanism to engage the base ladder with the fly extension ladder and to secure the insertion pins within the rung cavities of both ladders. With the clamping mechanism engaged, the base extension ladder and the fly extension ladders become locked together, temporarily creating a single securely engaged ladder. | 02-19-2015 |
| 182210000 | Section movement actuated | 4 |
| 20140318893 | COLLAPSIBLE LADDER - There is provided a collapsible ladder having several collapsible ladder sections, where each or at least part of the ladder sections comprises two hollow ladder bars arranged parallel to each other and inter-connected at an upper end by a rung, and where each collapsible ladder section is telescopically inserted into a lower ladder section. Each ladder bar of a collapsible ladder section has a locking hole adjacent the lower end part of the ladder bar and an extension below the locking hole, and retaining mechanisms are provided in at least part of the rungs for locking the collapsible ladder sections relative to one another when the collapsible ladder sections are extended. Each of or part of the retaining mechanisms comprises a locking pin, which can be brought into an extended and locked position in order to engage a corresponding locking hole provided in the ladder bar of a ladder section positioned there above, and a release part for bringing the locking pin into a retracted and un-locked position. At least part of the rungs holding a retaining mechanism with a locking pin and a release part have spacers provided at the bottom, where at least part of said spacers have a release actuator with a bottom part extending below the spacer when the ladder section above the rung is locked in the extended position. The release actuator engages the release part of a retaining mechanism of the rung and is arranged to activate the release part when the bottom part of the release actuator is moved upwards through the spacer thereby bringing the locking pin into the un-locked position. | 10-30-2014 |
| 20150322717 | FOLDING STEP STOOL - A foldable step stool includes a step and a pair of legs. The legs are mounted on the step for movement between use and storage positions. | 11-12-2015 |
| 182211000 | Spring-biased latch | 2 |
| 20100012433 | Self-locking extendable ladder for use with a boat - A telescoping ladder assembly which is especially useful for boarding a boat from the water includes a ladder comprising a plurality of telescoping ladder sections and a securing mechanism for securing the ladder in a stowed position. The securing mechanism includes a spring member which biases the ladder and a stop against one another to prevent extension of the ladder. The ladder is preferably pivotally and slidably mounted on a frame which is configured for mounting on a platform such as the transom of a boat. | 01-21-2010 |
| 20150144428 | TELESCOPIC LOFT LADDER - A telescopic loft ladder has two stiles with sections that are telescopically collapsible within each other, rungs having lateral ends each connected to respective sections the stiles, retractable pins in the ends of the rungs for engaging holes in the stile sections retain them in an extended position, and levers on the rungs that automatically operate when two rungs contact one another to disengage pins of the upper of the contacting rungs from the holes to permit collapse of the next higher rung. Each uppermost stile section is rotatable relative to the section connected to the uppermost rung of the ladder and has circumferentially and axially offset pin receiving holes. At least one resilient element biases the next to uppermost rung away from the uppermost rung to ensure that the locking pin of the uppermost rung engages a hole in the uppermost stile section as the ladder is lowered. | 05-28-2015 |
| 182214000 | With spacer means | 5 |
| 20100096217 | Coupler for Ladder Standoff Arrangement - A coupler for a standoff arrangement for ladders and the like. The standoff arrangement comprises a ladder attachment portion and a ladder support portion, with the attachment portion formed to be releasably securable to a ladder and the support portion extending from the ladder attachment portion. The ladder support portion has a pair of individually adjustable bearing arms, and a coupler is installed in each bearing arm to make the bearing arm universally adjustable in relation to the structure against which the ladder standoff arrangement bears. | 04-22-2010 |
| 20100326770 | ACCESSORY MOUNTING - The accessory mounting comprises a securable attachment device, principally front-loading, comprising two horizontally connected pairs of vertically (with respect to a standing ladder) connected and extendible diverging rung-gripping hooks, incorporating a horizontal member, the mid-section of a toolbar with attached arms extending into the horizontal ( | 12-30-2010 |
| 20120055739 | Ladder standoff device - A standoff device for positioning a ladder with respect to a supporting structure which is temporarily and rigidly attached to the upper end of a ladder for the purpose of holding the ladder away from the structure against which the ladder is leaning to provide more stability and means to provide a comfortable distance between the user and the structure during tasks such as painting, power washing house frame and sidings, and for the installation and cleaning of gutters, for carpentry, roofing, tree trimming and pruning. The standoff comprises a pivotal frame which is moveably and adjustably secured to a selected rung of the ladder with the pivotal movement limited by chain, rope, strap, strut, telescoping member, or other holding means attached to a lower portion of the ladder such as a lower rung. The standoff device includes a frame having extendable legs having padded rollers journal led on the end thereof which contact the structure. Moreover, an additional pair of rollers extend inwardly from the legs forma a “V-shaped” support means for leaning against vertical support structures such as columns or trees. The frame includes other rollers journal led inwardly at selected obtuse angles so that the frame is configured for use against the outside or inside corner of a structure, a pole or a tree. | 03-08-2012 |
| 20140318894 | Ladder support - The support for a ladder has a frame which may be attached at various points on a ladder so that when the ladder is standing for use, the elevation of the frame is adjustable. The frame has an outer arm which extends parallel to the transverse axis of the ladder and outwardly from both of its sides. The arm is provided with two or more contacting surfaces which make contact with the stationary object which supports the ladder. | 10-30-2014 |
| 20140367197 | GUTTER PROTECTION AND LADDER SUPPORT APPARATUS - A gutter protection and ladder support and safety apparatus includes a mechanism structured and arranged to be releaseably positioned in a gutter to prevent damage thereto caused by a ladder. The apparatus includes a mechanism for locking the apparatus in place to prevent lateral tipping and slippage of a ladder, a ladder supporting member operatively connected to the locking mechanism, and an adjustable ladder securing apparatus connected to the ladder supporting member and configured to releaseably secure a ladder thereto. | 12-18-2014 |
| 182215000 | Rung sandwiched between elements of composite stile | 1 |
| 20160032650 | Composite Rung for a Ladder and Method - A ladder having a first fiberglass rail. The ladder having a second fiberglass rail. The ladder having a one-piece composite rung which is hollow and made of carbon fiber or glass. The rung has a middle and a first end and a second end. The ladder having rivets that extend through the first end and the second end of the rung to attach the rung to the first rail and the second rail. No portion of the rung penetrates any portion of the first or second rails. A method for producing a ladder. A method for forming a one-piece composite rung for a ladder. A method for using a ladder. | 02-04-2016 |
| 182217000 | With reinforcing means | 2 |
| 20120090920 | BRACE FOR A STEP OF A STEPLADDER AND A STEPLADDER EMPLOYING SUCH BRACES - A bracing system for a bottom step of a stepladder has a first brace, a second brace, a second brace, a third brace and a fourth brace. The first brace has an end received in the channel of a side rail of the stepladder and an opposite end affixed to a front flange of the bottom step of the stepladder. A second brace has an end affixed in the channel of a side rail and an opposite end affixed to a front flange of the bottom step. The third brace has an end affixed to the channel of a side rail and an opposite end affixed to a back flange of the bottom step. The fourth brace has an end affixed to the channel of another of the side rails and an opposite end affixed to a back flange of the bottom step. | 04-19-2012 |
| 182219000 | For side rail | 1 |
| 20100170750 | LADDER AND A LADDER TREAD - A ladder includes legs ( | 07-08-2010 |
